Searched hist:5200 (Results 101 - 125 of 131) sorted by relevance
/linux-master/drivers/pinctrl/renesas/ | ||
H A D | pinctrl-rzg2l.c | diff d3aaa720 Thu Dec 07 00:06:53 MST 2023 Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> pinctrl: renesas: rzg2l: Add pin configuration support for pinmux groups On RZ/G3S different Ethernet pins need to be configured with different settings (e.g. power-source needs to be set, RGMII TXC and TX_CTL pins need output-enable). Adjust the driver to allow specifying pin configuration for pinmux groups. With this, DT settings like the following are taken into account by the driver: eth0_pins: eth0 { tx_ctl { pinmux = <RZG2L_PORT_PINMUX(1, 1, 1)>; /* ET0_TX_CTL */ power-source = <1800>; output-enable; drive-strength-microamp = <5200>; }; }; Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231207070700.4156557-5-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> |
/linux-master/arch/x86/include/asm/ | ||
H A D | nospec-branch.h | diff 03f5781b Thu May 03 00:10:43 MDT 2018 Wang YanQing <udknight@gmail.com> bpf, x86_32: add eBPF JIT compiler for ia32 The JIT compiler emits ia32 bit instructions. Currently, It supports eBPF only. Classic BPF is supported because of the conversion by BPF core. Almost all instructions from eBPF ISA supported except the following: BPF_ALU64 | BPF_DIV | BPF_K BPF_ALU64 | BPF_DIV | BPF_X BPF_ALU64 | BPF_MOD | BPF_K BPF_ALU64 | BPF_MOD | BPF_X BPF_STX | BPF_XADD | BPF_W BPF_STX | BPF_XADD | BPF_DW It doesn't support BPF_JMP|BPF_CALL with BPF_PSEUDO_CALL at the moment. IA32 has few general purpose registers, EAX|EDX|ECX|EBX|ESI|EDI. I use EAX|EDX|ECX|EBX as temporary registers to simulate instructions in eBPF ISA, and allocate ESI|EDI to BPF_REG_AX for constant blinding, all others eBPF registers, R0-R10, are simulated through scratch space on stack. The reasons behind the hardware registers allocation policy are: 1:MUL need EAX:EDX, shift operation need ECX, so they aren't fit for general eBPF 64bit register simulation. 2:We need at least 4 registers to simulate most eBPF ISA operations on registers operands instead of on register&memory operands. 3:We need to put BPF_REG_AX on hardware registers, or constant blinding will degrade jit performance heavily. Tested on PC (Intel(R) Core(TM) i5-5200U CPU). Testing results on i5-5200U: 1) test_bpf: Summary: 349 PASSED, 0 FAILED, [319/341 JIT'ed] 2) test_progs: Summary: 83 PASSED, 0 FAILED. 3) test_lpm: OK 4) test_lru_map: OK 5) test_verifier: Summary: 828 PASSED, 0 FAILED. Above tests are all done in following two conditions separately: 1:bpf_jit_enable=1 and bpf_jit_harden=0 2:bpf_jit_enable=1 and bpf_jit_harden=2 Below are some numbers for this jit implementation: Note: I run test_progs in kselftest 100 times continuously for every condition, the numbers are in format: total/times=avg. The numbers that test_bpf reports show almost the same relation. a:jit_enable=0 and jit_harden=0 b:jit_enable=1 and jit_harden=0 test_pkt_access:PASS:ipv4:15622/100=156 test_pkt_access:PASS:ipv4:10674/100=106 test_pkt_access:PASS:ipv6:9130/100=91 test_pkt_access:PASS:ipv6:4855/100=48 test_xdp:PASS:ipv4:240198/100=2401 test_xdp:PASS:ipv4:138912/100=1389 test_xdp:PASS:ipv6:137326/100=1373 test_xdp:PASS:ipv6:68542/100=685 test_l4lb:PASS:ipv4:61100/100=611 test_l4lb:PASS:ipv4:37302/100=373 test_l4lb:PASS:ipv6:101000/100=1010 test_l4lb:PASS:ipv6:55030/100=550 c:jit_enable=1 and jit_harden=2 test_pkt_access:PASS:ipv4:10558/100=105 test_pkt_access:PASS:ipv6:5092/100=50 test_xdp:PASS:ipv4:131902/100=1319 test_xdp:PASS:ipv6:77932/100=779 test_l4lb:PASS:ipv4:38924/100=389 test_l4lb:PASS:ipv6:57520/100=575 The numbers show we get 30%~50% improvement. See Documentation/networking/filter.txt for more information. Changelog: Changes v5-v6: 1:Add do {} while (0) to RETPOLINE_RAX_BPF_JIT for consistence reason. 2:Clean up non-standard comments, reported by Daniel Borkmann. 3:Fix a memory leak issue, repoted by Daniel Borkmann. Changes v4-v5: 1:Delete is_on_stack, BPF_REG_AX is the only one on real hardware registers, so just check with it. 2:Apply commit 1612a981b766 ("bpf, x64: fix JIT emission for dead code"), suggested by Daniel Borkmann. Changes v3-v4: 1:Fix changelog in commit. I install llvm-6.0, then test_progs willn't report errors. I submit another patch: "bpf: fix misaligned access for BPF_PROG_TYPE_PERF_EVENT program type on x86_32 platform" to fix another problem, after that patch, test_verifier willn't report errors too. 2:Fix clear r0[1] twice unnecessarily in *BPF_IND|BPF_ABS* simulation. Changes v2-v3: 1:Move BPF_REG_AX to real hardware registers for performance reason. 3:Using bpf_load_pointer instead of bpf_jit32.S, suggested by Daniel Borkmann. 4:Delete partial codes in 1c2a088a6626, suggested by Daniel Borkmann. 5:Some bug fixes and comments improvement. Changes v1-v2: 1:Fix bug in emit_ia32_neg64. 2:Fix bug in emit_ia32_arsh_r64. 3:Delete filename in top level comment, suggested by Thomas Gleixner. 4:Delete unnecessary boiler plate text, suggested by Thomas Gleixner. 5:Rewrite some words in changelog. 6:CodingSytle improvement and a little more comments. Signed-off-by: Wang YanQing <udknight@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> diff 03f5781b Thu May 03 00:10:43 MDT 2018 Wang YanQing <udknight@gmail.com> bpf, x86_32: add eBPF JIT compiler for ia32 The JIT compiler emits ia32 bit instructions. Currently, It supports eBPF only. Classic BPF is supported because of the conversion by BPF core. Almost all instructions from eBPF ISA supported except the following: BPF_ALU64 | BPF_DIV | BPF_K BPF_ALU64 | BPF_DIV | BPF_X BPF_ALU64 | BPF_MOD | BPF_K BPF_ALU64 | BPF_MOD | BPF_X BPF_STX | BPF_XADD | BPF_W BPF_STX | BPF_XADD | BPF_DW It doesn't support BPF_JMP|BPF_CALL with BPF_PSEUDO_CALL at the moment. IA32 has few general purpose registers, EAX|EDX|ECX|EBX|ESI|EDI. I use EAX|EDX|ECX|EBX as temporary registers to simulate instructions in eBPF ISA, and allocate ESI|EDI to BPF_REG_AX for constant blinding, all others eBPF registers, R0-R10, are simulated through scratch space on stack. The reasons behind the hardware registers allocation policy are: 1:MUL need EAX:EDX, shift operation need ECX, so they aren't fit for general eBPF 64bit register simulation. 2:We need at least 4 registers to simulate most eBPF ISA operations on registers operands instead of on register&memory operands. 3:We need to put BPF_REG_AX on hardware registers, or constant blinding will degrade jit performance heavily. Tested on PC (Intel(R) Core(TM) i5-5200U CPU). Testing results on i5-5200U: 1) test_bpf: Summary: 349 PASSED, 0 FAILED, [319/341 JIT'ed] 2) test_progs: Summary: 83 PASSED, 0 FAILED. 3) test_lpm: OK 4) test_lru_map: OK 5) test_verifier: Summary: 828 PASSED, 0 FAILED. Above tests are all done in following two conditions separately: 1:bpf_jit_enable=1 and bpf_jit_harden=0 2:bpf_jit_enable=1 and bpf_jit_harden=2 Below are some numbers for this jit implementation: Note: I run test_progs in kselftest 100 times continuously for every condition, the numbers are in format: total/times=avg. The numbers that test_bpf reports show almost the same relation. a:jit_enable=0 and jit_harden=0 b:jit_enable=1 and jit_harden=0 test_pkt_access:PASS:ipv4:15622/100=156 test_pkt_access:PASS:ipv4:10674/100=106 test_pkt_access:PASS:ipv6:9130/100=91 test_pkt_access:PASS:ipv6:4855/100=48 test_xdp:PASS:ipv4:240198/100=2401 test_xdp:PASS:ipv4:138912/100=1389 test_xdp:PASS:ipv6:137326/100=1373 test_xdp:PASS:ipv6:68542/100=685 test_l4lb:PASS:ipv4:61100/100=611 test_l4lb:PASS:ipv4:37302/100=373 test_l4lb:PASS:ipv6:101000/100=1010 test_l4lb:PASS:ipv6:55030/100=550 c:jit_enable=1 and jit_harden=2 test_pkt_access:PASS:ipv4:10558/100=105 test_pkt_access:PASS:ipv6:5092/100=50 test_xdp:PASS:ipv4:131902/100=1319 test_xdp:PASS:ipv6:77932/100=779 test_l4lb:PASS:ipv4:38924/100=389 test_l4lb:PASS:ipv6:57520/100=575 The numbers show we get 30%~50% improvement. See Documentation/networking/filter.txt for more information. Changelog: Changes v5-v6: 1:Add do {} while (0) to RETPOLINE_RAX_BPF_JIT for consistence reason. 2:Clean up non-standard comments, reported by Daniel Borkmann. 3:Fix a memory leak issue, repoted by Daniel Borkmann. Changes v4-v5: 1:Delete is_on_stack, BPF_REG_AX is the only one on real hardware registers, so just check with it. 2:Apply commit 1612a981b766 ("bpf, x64: fix JIT emission for dead code"), suggested by Daniel Borkmann. Changes v3-v4: 1:Fix changelog in commit. I install llvm-6.0, then test_progs willn't report errors. I submit another patch: "bpf: fix misaligned access for BPF_PROG_TYPE_PERF_EVENT program type on x86_32 platform" to fix another problem, after that patch, test_verifier willn't report errors too. 2:Fix clear r0[1] twice unnecessarily in *BPF_IND|BPF_ABS* simulation. Changes v2-v3: 1:Move BPF_REG_AX to real hardware registers for performance reason. 3:Using bpf_load_pointer instead of bpf_jit32.S, suggested by Daniel Borkmann. 4:Delete partial codes in 1c2a088a6626, suggested by Daniel Borkmann. 5:Some bug fixes and comments improvement. Changes v1-v2: 1:Fix bug in emit_ia32_neg64. 2:Fix bug in emit_ia32_arsh_r64. 3:Delete filename in top level comment, suggested by Thomas Gleixner. 4:Delete unnecessary boiler plate text, suggested by Thomas Gleixner. 5:Rewrite some words in changelog. 6:CodingSytle improvement and a little more comments. Signed-off-by: Wang YanQing <udknight@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
/linux-master/drivers/gpu/drm/ | ||
H A D | drm_gem.c | diff 6ff774bd Thu Oct 15 01:36:26 MDT 2015 Daniel Vetter <daniel.vetter@ffwll.ch> drm/gem: Use container_of in drm_gem_object_free Just a random thing I spotted while reading code - better safe than sorry. Link: http://mid.gmane.org/1444894601-5200-11-git-send-email-daniel.vetter@ffwll.ch Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> diff 4e270f08 Thu Oct 15 01:36:24 MDT 2015 Daniel Vetter <daniel.vetter@ffwll.ch> drm/gem: Drop struct_mutex requirement from drm_gem_mmap_obj Since commit 131e663bd6f1055caaff128f9aa5071d227eeb72 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Jul 9 23:32:33 2015 +0200 drm/gem: rip out drm vma accounting for gem mmaps there is no need for this any more. v2: Fixup compile noise spotted by 0-day build. Link: http://mid.gmane.org/1444894601-5200-9-git-send-email-daniel.vetter@ffwll.ch Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> |
/linux-master/arch/arm/mach-pxa/ | ||
H A D | Kconfig | diff 92261343 Sat Aug 16 22:59:32 MDT 2008 Jaya Kumar <jayakumar.lkml@gmail.com> [ARM] 5200/1: am200epd: use fb notifiers and gpio api The original am200epd driver was designed with bad assumptions. It manipulated GPSR/GPLR registers directly. It relied on direct access to the pxa LCDC registers which have since conflicted with commit ce4fb7b892a6d6c6a0f87366b26fd834d2923dd7 . This patch moves it into mach-pxa and overhauls it to use a fb obtained through fb notifiers. It now uses the generic GPIO api. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
H A D | Makefile | diff 92261343 Sat Aug 16 22:59:32 MDT 2008 Jaya Kumar <jayakumar.lkml@gmail.com> [ARM] 5200/1: am200epd: use fb notifiers and gpio api The original am200epd driver was designed with bad assumptions. It manipulated GPSR/GPLR registers directly. It relied on direct access to the pxa LCDC registers which have since conflicted with commit ce4fb7b892a6d6c6a0f87366b26fd834d2923dd7 . This patch moves it into mach-pxa and overhauls it to use a fb obtained through fb notifiers. It now uses the generic GPIO api. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
/linux-master/drivers/base/ | ||
H A D | Kconfig | diff 5fc6e9cb Sat Sep 18 14:23:08 MDT 2010 Randy Dunlap <randy.dunlap@oracle.com> FW_LOADER: fix kconfig dependency warning on HOTPLUG Fix kconfig dependency warning for FW_LOADER. Lots of drivers select FW_LOADER without bothering to depend on HOTPLUG and/or without selecting HOTPLUG. A kernel builds fine when FW_LOADER is enabled, whether HOTPLUG is enabled or not, and a kernel config file (make oldconfig) is not changed by this patch. (Yes, drivers/base/firmware_class.c uses interfaces from linux/kobject.h, which does have some CONFIG_HOTPLUG dependencies, but this patch does not change that.) warning: (MICROCODE || MICROCODE_INTEL && MICROCODE || MICROCODE_AMD && MICROCODE || PCMCIA_LOAD_CIS && PCCARD && PCMCIA && EXPERIMENTAL || USB_IRDA && NET && IRDA && USB || BT_HCIBCM203X && NET && BT && USB || BT_HCIBFUSB && NET && BT && USB || BT_HCIBT3C && NET && BT && PCMCIA || BT_MRVL_SDIO && NET ... !STAGING_EXCLUDE_BUILD && USB && (X86 || ARM) && WLAN || DRM_NOUVEAU && STAGING && !STAGING_EXCLUDE_BUILD && DRM && PCI || TI_ST && STAGING && !STAGING_EXCLUDE_BUILD && RFKILL || DELL_RBU && X86) selects FW_LOADER which has unmet direct dependencies (HOTPLUG) (5200 byte line reduced a lot) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
/linux-master/drivers/net/wireless/ath/wcn36xx/ | ||
H A D | smd.c | diff 1216c4d3 Fri Mar 25 16:42:12 MDT 2022 Edmond Gagnon <egagnon@squareup.com> wcn36xx: Implement tx_rate reporting Currently, the driver reports a tx_rate of 6.0 MBit/s no matter the true rate: root@linaro-developer:~# iw wlan0 link Connected to 6c:f3:7f:eb:9b:92 (on wlan0) SSID: SQ-DEVICETEST freq: 5200 RX: 4141 bytes (32 packets) TX: 2082 bytes (15 packets) signal: -77 dBm rx bitrate: 135.0 MBit/s MCS 6 40MHz short GI tx bitrate: 6.0 MBit/s bss flags: short-slot-time dtim period: 1 beacon int: 100 This patch requests HAL_GLOBAL_CLASS_A_STATS_INFO via a hal_get_stats firmware message and reports it via ieee80211_ops::sta_statistics. root@linaro-developer:~# iw wlan0 link Connected to 6c:f3:7f:eb:73:b2 (on wlan0) SSID: SQ-DEVICETEST freq: 5700 RX: 26788094 bytes (19859 packets) TX: 1101376 bytes (12119 packets) signal: -75 dBm rx bitrate: 135.0 MBit/s MCS 6 40MHz short GI tx bitrate: 108.0 MBit/s VHT-MCS 5 40MHz VHT-NSS 1 bss flags: short-slot-time dtim period: 1 beacon int: 100 Tested on MSM8939 with WCN3680B running firmware CNSS-PR-2-0-1-2-c1-00083, and verified by sniffing frames over the air with Wireshark to ensure the MCS indices match. Signed-off-by: Edmond Gagnon <egagnon@squareup.com> Reviewed-by: Benjamin Li <benl@squareup.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220325224212.159690-1-egagnon@squareup.com |
H A D | main.c | diff 1216c4d3 Fri Mar 25 16:42:12 MDT 2022 Edmond Gagnon <egagnon@squareup.com> wcn36xx: Implement tx_rate reporting Currently, the driver reports a tx_rate of 6.0 MBit/s no matter the true rate: root@linaro-developer:~# iw wlan0 link Connected to 6c:f3:7f:eb:9b:92 (on wlan0) SSID: SQ-DEVICETEST freq: 5200 RX: 4141 bytes (32 packets) TX: 2082 bytes (15 packets) signal: -77 dBm rx bitrate: 135.0 MBit/s MCS 6 40MHz short GI tx bitrate: 6.0 MBit/s bss flags: short-slot-time dtim period: 1 beacon int: 100 This patch requests HAL_GLOBAL_CLASS_A_STATS_INFO via a hal_get_stats firmware message and reports it via ieee80211_ops::sta_statistics. root@linaro-developer:~# iw wlan0 link Connected to 6c:f3:7f:eb:73:b2 (on wlan0) SSID: SQ-DEVICETEST freq: 5700 RX: 26788094 bytes (19859 packets) TX: 1101376 bytes (12119 packets) signal: -75 dBm rx bitrate: 135.0 MBit/s MCS 6 40MHz short GI tx bitrate: 108.0 MBit/s VHT-MCS 5 40MHz VHT-NSS 1 bss flags: short-slot-time dtim period: 1 beacon int: 100 Tested on MSM8939 with WCN3680B running firmware CNSS-PR-2-0-1-2-c1-00083, and verified by sniffing frames over the air with Wireshark to ensure the MCS indices match. Signed-off-by: Edmond Gagnon <egagnon@squareup.com> Reviewed-by: Benjamin Li <benl@squareup.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220325224212.159690-1-egagnon@squareup.com |
/linux-master/net/sched/ | ||
H A D | sch_qfq.c | diff 0cd58e5c Mon Jun 21 11:54:49 MDT 2021 Eric Dumazet <edumazet@google.com> pkt_sched: sch_qfq: fix qfq_change_class() error path If qfq_change_class() is unable to allocate memory for qfq_aggregate, it frees the class that has been inserted in the class hash table, but does not unhash it. Defer the insertion after the problematic allocation. BUG: KASAN: use-after-free in hlist_add_head include/linux/list.h:884 [inline] BUG: KASAN: use-after-free in qdisc_class_hash_insert+0x200/0x210 net/sched/sch_api.c:731 Write of size 8 at addr ffff88814a534f10 by task syz-executor.4/31478 CPU: 0 PID: 31478 Comm: syz-executor.4 Not tainted 5.13.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:233 __kasan_report mm/kasan/report.c:419 [inline] kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:436 hlist_add_head include/linux/list.h:884 [inline] qdisc_class_hash_insert+0x200/0x210 net/sched/sch_api.c:731 qfq_change_class+0x96c/0x1990 net/sched/sch_qfq.c:489 tc_ctl_tclass+0x514/0xe50 net/sched/sch_api.c:2113 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5564 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1929 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdc7b5f0188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007fdc7b5f01d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffcf7310b3f R14: 00007fdc7b5f0300 R15: 0000000000022000 Allocated by task 31445: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:428 [inline] ____kasan_kmalloc mm/kasan/common.c:507 [inline] ____kasan_kmalloc mm/kasan/common.c:466 [inline] __kasan_kmalloc+0x9b/0xd0 mm/kasan/common.c:516 kmalloc include/linux/slab.h:556 [inline] kzalloc include/linux/slab.h:686 [inline] qfq_change_class+0x705/0x1990 net/sched/sch_qfq.c:464 tc_ctl_tclass+0x514/0xe50 net/sched/sch_api.c:2113 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5564 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1929 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 31445: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_set_track+0x1c/0x30 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:357 ____kasan_slab_free mm/kasan/common.c:360 [inline] ____kasan_slab_free mm/kasan/common.c:325 [inline] __kasan_slab_free+0xfb/0x130 mm/kasan/common.c:368 kasan_slab_free include/linux/kasan.h:212 [inline] slab_free_hook mm/slub.c:1583 [inline] slab_free_freelist_hook+0xdf/0x240 mm/slub.c:1608 slab_free mm/slub.c:3168 [inline] kfree+0xe5/0x7f0 mm/slub.c:4212 qfq_change_class+0x10fb/0x1990 net/sched/sch_qfq.c:518 tc_ctl_tclass+0x514/0xe50 net/sched/sch_api.c:2113 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5564 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1929 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff88814a534f00 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 16 bytes inside of 128-byte region [ffff88814a534f00, ffff88814a534f80) The buggy address belongs to the page: page:ffffea0005294d00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14a534 flags: 0x57ff00000000200(slab|node=1|zone=2|lastcpupid=0x7ff) raw: 057ff00000000200 ffffea00004fee00 0000000600000006 ffff8880110418c0 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 29797, ts 604817765317, free_ts 604810151744 prep_new_page mm/page_alloc.c:2358 [inline] get_page_from_freelist+0x1033/0x2b60 mm/page_alloc.c:3994 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5200 alloc_pages+0x18c/0x2a0 mm/mempolicy.c:2272 alloc_slab_page mm/slub.c:1646 [inline] allocate_slab+0x2c5/0x4c0 mm/slub.c:1786 new_slab mm/slub.c:1849 [inline] new_slab_objects mm/slub.c:2595 [inline] ___slab_alloc+0x4a1/0x810 mm/slub.c:2758 __slab_alloc.constprop.0+0xa7/0xf0 mm/slub.c:2798 slab_alloc_node mm/slub.c:2880 [inline] slab_alloc mm/slub.c:2922 [inline] __kmalloc+0x315/0x330 mm/slub.c:4050 kmalloc include/linux/slab.h:561 [inline] kzalloc include/linux/slab.h:686 [inline] __register_sysctl_table+0x112/0x1090 fs/proc/proc_sysctl.c:1318 mpls_dev_sysctl_register+0x1b7/0x2d0 net/mpls/af_mpls.c:1421 mpls_add_dev net/mpls/af_mpls.c:1472 [inline] mpls_dev_notify+0x214/0x8b0 net/mpls/af_mpls.c:1588 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2121 call_netdevice_notifiers_extack net/core/dev.c:2133 [inline] call_netdevice_notifiers net/core/dev.c:2147 [inline] register_netdevice+0x106b/0x1500 net/core/dev.c:10312 veth_newlink+0x585/0xac0 drivers/net/veth.c:1547 __rtnl_newlink+0x1062/0x1710 net/core/rtnetlink.c:3452 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3500 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1298 [inline] free_pcp_prepare+0x223/0x300 mm/page_alloc.c:1342 free_unref_page_prepare mm/page_alloc.c:3250 [inline] free_unref_page+0x12/0x1d0 mm/page_alloc.c:3298 __vunmap+0x783/0xb60 mm/vmalloc.c:2566 free_work+0x58/0x70 mm/vmalloc.c:80 process_one_work+0x98d/0x1600 kernel/workqueue.c:2276 worker_thread+0x64c/0x1120 kernel/workqueue.c:2422 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Memory state around the buggy address: ffff88814a534e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88814a534e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88814a534f00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88814a534f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88814a535000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Fixes: 462dbc9101acd ("pkt_sched: QFQ Plus: fair-queueing service at DRR cost") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
H A D | sch_htb.c | diff 56b765b7 Wed Oct 31 00:04:11 MDT 2012 Vimalkumar <j.vimal@gmail.com> htb: improved accuracy at high rates Current HTB (and TBF) uses rate table computed by the "tc" userspace program, which has the following issue: The rate table has 256 entries to map packet lengths to token (time units). With TSO sized packets, the 256 entry granularity leads to loss/gain of rate, making the token bucket inaccurate. Thus, instead of relying on rate table, this patch explicitly computes the time and accounts for packet transmission times with nanosecond granularity. This greatly improves accuracy of HTB with a wide range of packet sizes. Example: tc qdisc add dev $dev root handle 1: \ htb default 1 tc class add dev $dev classid 1:1 parent 1: \ rate 5Gbit mtu 64k Here is an example of inaccuracy: $ iperf -c host -t 10 -i 1 With old htb: eth4: 34.76 Mb/s In 5827.98 Mb/s Out - 65836.0 p/s In 481273.0 p/s Out [SUM] 9.0-10.0 sec 669 MBytes 5.61 Gbits/sec [SUM] 0.0-10.0 sec 6.50 GBytes 5.58 Gbits/sec With new htb: eth4: 28.36 Mb/s In 5208.06 Mb/s Out - 53704.0 p/s In 430076.0 p/s Out [SUM] 9.0-10.0 sec 594 MBytes 4.98 Gbits/sec [SUM] 0.0-10.0 sec 5.80 GBytes 4.98 Gbits/sec The bits per second on the wire is still 5200Mb/s with new HTB because qdisc accounts for packet length using skb->len, which is smaller than total bytes on the wire if GSO is used. But that is for another patch regardless of how time is accounted. Many thanks to Eric Dumazet for review and feedback. Signed-off-by: Vimalkumar <j.vimal@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
/linux-master/drivers/video/ | ||
H A D | Makefile | diff 92261343 Sat Aug 16 22:59:32 MDT 2008 Jaya Kumar <jayakumar.lkml@gmail.com> [ARM] 5200/1: am200epd: use fb notifiers and gpio api The original am200epd driver was designed with bad assumptions. It manipulated GPSR/GPLR registers directly. It relied on direct access to the pxa LCDC registers which have since conflicted with commit ce4fb7b892a6d6c6a0f87366b26fd834d2923dd7 . This patch moves it into mach-pxa and overhauls it to use a fb obtained through fb notifiers. It now uses the generic GPIO api. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
H A D | Kconfig | diff 92261343 Sat Aug 16 22:59:32 MDT 2008 Jaya Kumar <jayakumar.lkml@gmail.com> [ARM] 5200/1: am200epd: use fb notifiers and gpio api The original am200epd driver was designed with bad assumptions. It manipulated GPSR/GPLR registers directly. It relied on direct access to the pxa LCDC registers which have since conflicted with commit ce4fb7b892a6d6c6a0f87366b26fd834d2923dd7 . This patch moves it into mach-pxa and overhauls it to use a fb obtained through fb notifiers. It now uses the generic GPIO api. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> diff 85f1503a Mon Nov 07 02:00:30 MST 2005 Benjamin Herrenschmidt <benh@kernel.crashing.org> [PATCH] nvidiafb: Fix mode setting & PPC support This patch fixes nvifiafb mode setting code to be closer to what the X driver does, which actually makes it work on the 5200FX I have access to. It also fix the routine that gets the EDID from Open Firmware on PPC, it was broken in various ways and would crash at boot. Compared to the patch I posted to linux-fbdev last week, this one just changes a printk to be closer to the other ones in the driver. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@hotpop.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
/linux-master/arch/powerpc/include/asm/ | ||
H A D | cputable.h | diff c9310920 Tue Mar 17 09:17:50 MDT 2009 Piotr Ziecik <kosmo@semihalf.com> powerpc/5200: Enable CPU_FTR_NEED_COHERENT for MPC52xx BestComm, a DMA engine in MPC52xx SoC, requires snooping when CPU caches are enabled to work properly. Adding CPU_FTR_NEED_COHERENT fixes NFS problems on MPC52xx machines introduced by 'powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup code' (sha1: 4c456a67f501b8b15542c7c21c28812bf88f484b). Signed-off-by: Piotr Ziecik <kosmo@semihalf.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> |
H A D | processor.h | diff 16132529 Thu Jun 03 02:41:44 MDT 2021 Christophe Leroy <christophe.leroy@csgroup.eu> powerpc/32s: Rework Kernel Userspace Access Protection On book3s/32, KUAP is provided by toggling Ks bit in segment registers. One segment register addresses 256M of virtual memory. At the time being, KUAP implements a complex logic to apply the unlock/lock on the exact number of segments covering the user range to access, with saving the boundaries of the range of segments in a member of thread struct. But most if not all user accesses are within a single segment. Rework KUAP with a different approach: - Open only one segment, the one corresponding to the starting address of the range to be accessed. - If a second segment is involved, it will generate a page fault. The segment will then be open by the page fault handler. The kuap member of thread struct will now contain: - The start address of the current on going user access, that will be used to know which segment to lock at the end of the user access. - ~0 when no user access is open - ~1 when additionnal segments are opened by a page fault. Then, at lock time - When only one segment is open, close it. - When several segments are open, close all user segments. Almost 100% of the time, only one segment will be involved. In interrupts, inline the function that unlock/lock all segments, because not inlining them implies a lot of register save/restore. With the patch, writing value 128 in userspace in perf_copy_attr() is done with 16 instructions: 3890: 93 82 04 dc stw r28,1244(r2) 3894: 7d 20 e5 26 mfsrin r9,r28 3898: 55 29 00 80 rlwinm r9,r9,0,2,0 389c: 7d 20 e1 e4 mtsrin r9,r28 38a0: 4c 00 01 2c isync 38a4: 39 20 00 80 li r9,128 38a8: 91 3c 00 00 stw r9,0(r28) 38ac: 81 42 04 dc lwz r10,1244(r2) 38b0: 39 00 ff ff li r8,-1 38b4: 91 02 04 dc stw r8,1244(r2) 38b8: 2c 0a ff fe cmpwi r10,-2 38bc: 41 82 00 88 beq 3944 <perf_copy_attr+0x36c> 38c0: 7d 20 55 26 mfsrin r9,r10 38c4: 65 29 40 00 oris r9,r9,16384 38c8: 7d 20 51 e4 mtsrin r9,r10 38cc: 4c 00 01 2c isync ... 3944: 48 00 00 01 bl 3944 <perf_copy_attr+0x36c> 3944: R_PPC_REL24 kuap_lock_all_ool Before the patch it was 118 instructions. In reality only 42 are executed in most cases, but GCC is not able to see that a properly aligned user access cannot involve more than one segment. 5060: 39 1d 00 04 addi r8,r29,4 5064: 3d 20 b0 00 lis r9,-20480 5068: 7c 08 48 40 cmplw r8,r9 506c: 40 81 00 08 ble 5074 <perf_copy_attr+0x2cc> 5070: 3d 00 b0 00 lis r8,-20480 5074: 39 28 ff ff addi r9,r8,-1 5078: 57 aa 00 06 rlwinm r10,r29,0,0,3 507c: 55 29 27 3e rlwinm r9,r9,4,28,31 5080: 39 29 00 01 addi r9,r9,1 5084: 7d 29 53 78 or r9,r9,r10 5088: 91 22 04 dc stw r9,1244(r2) 508c: 7d 20 ed 26 mfsrin r9,r29 5090: 55 29 00 80 rlwinm r9,r9,0,2,0 5094: 7c 08 50 40 cmplw r8,r10 5098: 40 81 00 c0 ble 5158 <perf_copy_attr+0x3b0> 509c: 7d 46 50 f8 not r6,r10 50a0: 7c c6 42 14 add r6,r6,r8 50a4: 54 c6 27 be rlwinm r6,r6,4,30,31 50a8: 7d 20 51 e4 mtsrin r9,r10 50ac: 3c ea 10 00 addis r7,r10,4096 50b0: 39 29 01 11 addi r9,r9,273 50b4: 7f 88 38 40 cmplw cr7,r8,r7 50b8: 55 29 02 06 rlwinm r9,r9,0,8,3 50bc: 40 9d 00 9c ble cr7,5158 <perf_copy_attr+0x3b0> 50c0: 2f 86 00 00 cmpwi cr7,r6,0 50c4: 41 9e 00 4c beq cr7,5110 <perf_copy_attr+0x368> 50c8: 2f 86 00 01 cmpwi cr7,r6,1 50cc: 41 9e 00 2c beq cr7,50f8 <perf_copy_attr+0x350> 50d0: 2f 86 00 02 cmpwi cr7,r6,2 50d4: 41 9e 00 14 beq cr7,50e8 <perf_copy_attr+0x340> 50d8: 7d 20 39 e4 mtsrin r9,r7 50dc: 39 29 01 11 addi r9,r9,273 50e0: 3c e7 10 00 addis r7,r7,4096 50e4: 55 29 02 06 rlwinm r9,r9,0,8,3 50e8: 7d 20 39 e4 mtsrin r9,r7 50ec: 39 29 01 11 addi r9,r9,273 50f0: 3c e7 10 00 addis r7,r7,4096 50f4: 55 29 02 06 rlwinm r9,r9,0,8,3 50f8: 7d 20 39 e4 mtsrin r9,r7 50fc: 3c e7 10 00 addis r7,r7,4096 5100: 39 29 01 11 addi r9,r9,273 5104: 7f 88 38 40 cmplw cr7,r8,r7 5108: 55 29 02 06 rlwinm r9,r9,0,8,3 510c: 40 9d 00 4c ble cr7,5158 <perf_copy_attr+0x3b0> 5110: 7d 20 39 e4 mtsrin r9,r7 5114: 39 29 01 11 addi r9,r9,273 5118: 3c c7 10 00 addis r6,r7,4096 511c: 55 29 02 06 rlwinm r9,r9,0,8,3 5120: 7d 20 31 e4 mtsrin r9,r6 5124: 39 29 01 11 addi r9,r9,273 5128: 3c c6 10 00 addis r6,r6,4096 512c: 55 29 02 06 rlwinm r9,r9,0,8,3 5130: 7d 20 31 e4 mtsrin r9,r6 5134: 39 29 01 11 addi r9,r9,273 5138: 3c c7 30 00 addis r6,r7,12288 513c: 55 29 02 06 rlwinm r9,r9,0,8,3 5140: 7d 20 31 e4 mtsrin r9,r6 5144: 3c e7 40 00 addis r7,r7,16384 5148: 39 29 01 11 addi r9,r9,273 514c: 7f 88 38 40 cmplw cr7,r8,r7 5150: 55 29 02 06 rlwinm r9,r9,0,8,3 5154: 41 9d ff bc bgt cr7,5110 <perf_copy_attr+0x368> 5158: 4c 00 01 2c isync 515c: 39 20 00 80 li r9,128 5160: 91 3d 00 00 stw r9,0(r29) 5164: 38 e0 00 00 li r7,0 5168: 90 e2 04 dc stw r7,1244(r2) 516c: 7d 20 ed 26 mfsrin r9,r29 5170: 65 29 40 00 oris r9,r9,16384 5174: 40 81 00 c0 ble 5234 <perf_copy_attr+0x48c> 5178: 7d 47 50 f8 not r7,r10 517c: 7c e7 42 14 add r7,r7,r8 5180: 54 e7 27 be rlwinm r7,r7,4,30,31 5184: 7d 20 51 e4 mtsrin r9,r10 5188: 3d 4a 10 00 addis r10,r10,4096 518c: 39 29 01 11 addi r9,r9,273 5190: 7c 08 50 40 cmplw r8,r10 5194: 55 29 02 06 rlwinm r9,r9,0,8,3 5198: 40 81 00 9c ble 5234 <perf_copy_attr+0x48c> 519c: 2c 07 00 00 cmpwi r7,0 51a0: 41 82 00 4c beq 51ec <perf_copy_attr+0x444> 51a4: 2c 07 00 01 cmpwi r7,1 51a8: 41 82 00 2c beq 51d4 <perf_copy_attr+0x42c> 51ac: 2c 07 00 02 cmpwi r7,2 51b0: 41 82 00 14 beq 51c4 <perf_copy_attr+0x41c> 51b4: 7d 20 51 e4 mtsrin r9,r10 51b8: 39 29 01 11 addi r9,r9,273 51bc: 3d 4a 10 00 addis r10,r10,4096 51c0: 55 29 02 06 rlwinm r9,r9,0,8,3 51c4: 7d 20 51 e4 mtsrin r9,r10 51c8: 39 29 01 11 addi r9,r9,273 51cc: 3d 4a 10 00 addis r10,r10,4096 51d0: 55 29 02 06 rlwinm r9,r9,0,8,3 51d4: 7d 20 51 e4 mtsrin r9,r10 51d8: 3d 4a 10 00 addis r10,r10,4096 51dc: 39 29 01 11 addi r9,r9,273 51e0: 7c 08 50 40 cmplw r8,r10 51e4: 55 29 02 06 rlwinm r9,r9,0,8,3 51e8: 40 81 00 4c ble 5234 <perf_copy_attr+0x48c> 51ec: 7d 20 51 e4 mtsrin r9,r10 51f0: 39 29 01 11 addi r9,r9,273 51f4: 3c ea 10 00 addis r7,r10,4096 51f8: 55 29 02 06 rlwinm r9,r9,0,8,3 51fc: 7d 20 39 e4 mtsrin r9,r7 5200: 39 29 01 11 addi r9,r9,273 5204: 3c e7 10 00 addis r7,r7,4096 5208: 55 29 02 06 rlwinm r9,r9,0,8,3 520c: 7d 20 39 e4 mtsrin r9,r7 5210: 39 29 01 11 addi r9,r9,273 5214: 3c ea 30 00 addis r7,r10,12288 5218: 55 29 02 06 rlwinm r9,r9,0,8,3 521c: 7d 20 39 e4 mtsrin r9,r7 5220: 3d 4a 40 00 addis r10,r10,16384 5224: 39 29 01 11 addi r9,r9,273 5228: 7c 08 50 40 cmplw r8,r10 522c: 55 29 02 06 rlwinm r9,r9,0,8,3 5230: 41 81 ff bc bgt 51ec <perf_copy_attr+0x444> 5234: 4c 00 01 2c isync Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> [mpe: Export the ool handlers to fix build errors] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/d9121f96a7c4302946839a0771f5d1daeeb6968c.1622708530.git.christophe.leroy@csgroup.eu |
/linux-master/drivers/media/usb/au0828/ | ||
H A D | au0828-video.c | diff 5200ab6a Thu Oct 04 15:38:15 MDT 2018 Hans Verkuil <hans.verkuil@cisco.com> media: vidioc_cropcap -> vidioc_g_pixelaspect Now vidioc_cropcap is only used to return the pixelaspect, so rename it accordingly. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
/linux-master/drivers/media/v4l2-core/ | ||
H A D | v4l2-dev.c | diff 5200ab6a Thu Oct 04 15:38:15 MDT 2018 Hans Verkuil <hans.verkuil@cisco.com> media: vidioc_cropcap -> vidioc_g_pixelaspect Now vidioc_cropcap is only used to return the pixelaspect, so rename it accordingly. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
H A D | v4l2-ioctl.c | diff 5200ab6a Thu Oct 04 15:38:15 MDT 2018 Hans Verkuil <hans.verkuil@cisco.com> media: vidioc_cropcap -> vidioc_g_pixelaspect Now vidioc_cropcap is only used to return the pixelaspect, so rename it accordingly. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
/linux-master/drivers/spi/ | ||
H A D | Makefile | diff 42bbb709 Wed Nov 04 15:34:18 MST 2009 Grant Likely <grant.likely@secretlab.ca> powerpc/5200: Add mpc5200-spi (non-PSC) device driver Adds support for the dedicated SPI device on the Freescale MPC5200(b) SoC. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> |
/linux-master/drivers/regulator/ | ||
H A D | Makefile | diff de20b747 Tue Jun 01 23:31:46 MDT 2021 ChiYuan Huang <cy_huang@richtek.com> regulator: rt6160: Add support for Richtek RT6160 Add support for Richtek RT6160 voltage regulator. It can provide up to 3A output current within the adjustable voltage from 2025mV to 5200mV. It integrate a buckboost converter to support wide input voltage range from 2200mV to 5500mV. Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Link: https://lore.kernel.org/r/1622611906-2403-2-git-send-email-u0084500@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org> |
H A D | Kconfig | diff de20b747 Tue Jun 01 23:31:46 MDT 2021 ChiYuan Huang <cy_huang@richtek.com> regulator: rt6160: Add support for Richtek RT6160 Add support for Richtek RT6160 voltage regulator. It can provide up to 3A output current within the adjustable voltage from 2025mV to 5200mV. It integrate a buckboost converter to support wide input voltage range from 2200mV to 5500mV. Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Link: https://lore.kernel.org/r/1622611906-2403-2-git-send-email-u0084500@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org> |
/linux-master/fs/ | ||
H A D | fs-writeback.c | diff 78ebc2f7 Fri May 20 17:58:10 MDT 2016 Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> mm,writeback: don't use memory reserves for wb_start_writeback When writeback operation cannot make forward progress because memory allocation requests needed for doing I/O cannot be satisfied (e.g. under OOM-livelock situation), we can observe flood of order-0 page allocation failure messages caused by complete depletion of memory reserves. This is caused by unconditionally allocating "struct wb_writeback_work" objects using GFP_ATOMIC from PF_MEMALLOC context. __alloc_pages_nodemask() { __alloc_pages_slowpath() { __alloc_pages_direct_reclaim() { __perform_reclaim() { current->flags |= PF_MEMALLOC; try_to_free_pages() { do_try_to_free_pages() { wakeup_flusher_threads() { wb_start_writeback() { kzalloc(sizeof(*work), GFP_ATOMIC) { /* ALLOC_NO_WATERMARKS via PF_MEMALLOC */ } } } } } current->flags &= ~PF_MEMALLOC; } } } } Since I/O is stalling, allocating writeback requests forever shall deplete memory reserves. Fortunately, since wb_start_writeback() can fall back to wb_wakeup() when allocating "struct wb_writeback_work" failed, we don't need to allow wb_start_writeback() to use memory reserves. Mem-Info: active_anon:289393 inactive_anon:2093 isolated_anon:29 active_file:10838 inactive_file:113013 isolated_file:859 unevictable:0 dirty:108531 writeback:5308 unstable:0 slab_reclaimable:5526 slab_unreclaimable:7077 mapped:9970 shmem:2159 pagetables:2387 bounce:0 free:3042 free_pcp:0 free_cma:0 Node 0 DMA free:6968kB min:44kB low:52kB high:64kB active_anon:6056kB inactive_anon:176kB active_file:712kB inactive_file:744kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15988kB managed:15904kB mlocked:0kB dirty:756kB writeback:0kB mapped:736kB shmem:184kB slab_reclaimable:48kB slab_unreclaimable:208kB kernel_stack:160kB pagetables:144kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:9708 all_unreclaimable? yes lowmem_reserve[]: 0 1732 1732 1732 Node 0 DMA32 free:5200kB min:5200kB low:6500kB high:7800kB active_anon:1151516kB inactive_anon:8196kB active_file:42640kB inactive_file:451076kB unevictable:0kB isolated(anon):116kB isolated(file):3564kB present:2080640kB managed:1775332kB mlocked:0kB dirty:433368kB writeback:21232kB mapped:39144kB shmem:8452kB slab_reclaimable:22056kB slab_unreclaimable:28100kB kernel_stack:20976kB pagetables:9404kB unstable:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:2701604 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 25*4kB (UME) 16*8kB (UME) 3*16kB (UE) 5*32kB (UME) 2*64kB (UM) 2*128kB (ME) 2*256kB (ME) 1*512kB (E) 1*1024kB (E) 2*2048kB (ME) 0*4096kB = 6964kB Node 0 DMA32: 925*4kB (UME) 140*8kB (UME) 5*16kB (ME) 5*32kB (M) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5060kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 126847 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524157 pages RAM 0 pages HighMem/MovableOnly 76348 pages reserved 0 pages hwpoisoned Out of memory: Kill process 4450 (file_io.00) score 998 or sacrifice child Killed process 4450 (file_io.00) total-vm:4308kB, anon-rss:100kB, file-rss:1184kB, shmem-rss:0kB kthreadd: page allocation failure: order:0, mode:0x2200020 file_io.00: page allocation failure: order:0, mode:0x2200020 CPU: 0 PID: 4457 Comm: file_io.00 Not tainted 4.5.0-rc7+ #45 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 Call Trace: warn_alloc_failed+0xf7/0x150 __alloc_pages_nodemask+0x23f/0xa60 alloc_pages_current+0x87/0x110 new_slab+0x3a1/0x440 ___slab_alloc+0x3cf/0x590 __slab_alloc.isra.64+0x18/0x1d kmem_cache_alloc+0x11c/0x150 wb_start_writeback+0x39/0x90 wakeup_flusher_threads+0x7f/0xf0 do_try_to_free_pages+0x1f9/0x410 try_to_free_pages+0x94/0xc0 __alloc_pages_nodemask+0x566/0xa60 alloc_pages_current+0x87/0x110 __page_cache_alloc+0xaf/0xc0 pagecache_get_page+0x88/0x260 grab_cache_page_write_begin+0x21/0x40 xfs_vm_write_begin+0x2f/0xf0 generic_perform_write+0xca/0x1c0 xfs_file_buffered_aio_write+0xcc/0x1f0 xfs_file_write_iter+0x84/0x140 __vfs_write+0xc7/0x100 vfs_write+0x9d/0x190 SyS_write+0x50/0xc0 entry_SYSCALL_64_fastpath+0x12/0x6a Mem-Info: active_anon:293335 inactive_anon:2093 isolated_anon:0 active_file:10829 inactive_file:110045 isolated_file:32 unevictable:0 dirty:109275 writeback:822 unstable:0 slab_reclaimable:5489 slab_unreclaimable:10070 mapped:9999 shmem:2159 pagetables:2420 bounce:0 free:3 free_pcp:0 free_cma:0 Node 0 DMA free:12kB min:44kB low:52kB high:64kB active_anon:6060kB inactive_anon:176kB active_file:708kB inactive_file:756kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15988kB managed:15904kB mlocked:0kB dirty:756kB writeback:0kB mapped:736kB shmem:184kB slab_reclaimable:48kB slab_unreclaimable:7160kB kernel_stack:160kB pagetables:144kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:9844 all_unreclaimable? yes lowmem_reserve[]: 0 1732 1732 1732 Node 0 DMA32 free:0kB min:5200kB low:6500kB high:7800kB active_anon:1167280kB inactive_anon:8196kB active_file:42608kB inactive_file:439424kB unevictable:0kB isolated(anon):0kB isolated(file):128kB present:2080640kB managed:1775332kB mlocked:0kB dirty:436344kB writeback:3288kB mapped:39260kB shmem:8452kB slab_reclaimable:21908kB slab_unreclaimable:33120kB kernel_stack:20976kB pagetables:9536kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:11073180 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 123086 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524157 pages RAM 0 pages HighMem/MovableOnly 76348 pages reserved 0 pages hwpoisoned SLUB: Unable to allocate memory on node -1 (gfp=0x2088020) cache: kmalloc-64, object size: 64, buffer size: 64, default order: 0, min order: 0 node 0: slabs: 3218, objs: 205952, free: 0 file_io.00: page allocation failure: order:0, mode:0x2200020 CPU: 0 PID: 4457 Comm: file_io.00 Not tainted 4.5.0-rc7+ #45 Assuming that somebody will find a better solution, let's apply this patch for now to stop bleeding, for this problem frequently prevents me from testing OOM livelock condition. Link: http://lkml.kernel.org/r/20160318131136.GE7152@quack.suse.cz Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Jan Kara <jack@suse.cz> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> diff 78ebc2f7 Fri May 20 17:58:10 MDT 2016 Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> mm,writeback: don't use memory reserves for wb_start_writeback When writeback operation cannot make forward progress because memory allocation requests needed for doing I/O cannot be satisfied (e.g. under OOM-livelock situation), we can observe flood of order-0 page allocation failure messages caused by complete depletion of memory reserves. This is caused by unconditionally allocating "struct wb_writeback_work" objects using GFP_ATOMIC from PF_MEMALLOC context. __alloc_pages_nodemask() { __alloc_pages_slowpath() { __alloc_pages_direct_reclaim() { __perform_reclaim() { current->flags |= PF_MEMALLOC; try_to_free_pages() { do_try_to_free_pages() { wakeup_flusher_threads() { wb_start_writeback() { kzalloc(sizeof(*work), GFP_ATOMIC) { /* ALLOC_NO_WATERMARKS via PF_MEMALLOC */ } } } } } current->flags &= ~PF_MEMALLOC; } } } } Since I/O is stalling, allocating writeback requests forever shall deplete memory reserves. Fortunately, since wb_start_writeback() can fall back to wb_wakeup() when allocating "struct wb_writeback_work" failed, we don't need to allow wb_start_writeback() to use memory reserves. Mem-Info: active_anon:289393 inactive_anon:2093 isolated_anon:29 active_file:10838 inactive_file:113013 isolated_file:859 unevictable:0 dirty:108531 writeback:5308 unstable:0 slab_reclaimable:5526 slab_unreclaimable:7077 mapped:9970 shmem:2159 pagetables:2387 bounce:0 free:3042 free_pcp:0 free_cma:0 Node 0 DMA free:6968kB min:44kB low:52kB high:64kB active_anon:6056kB inactive_anon:176kB active_file:712kB inactive_file:744kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15988kB managed:15904kB mlocked:0kB dirty:756kB writeback:0kB mapped:736kB shmem:184kB slab_reclaimable:48kB slab_unreclaimable:208kB kernel_stack:160kB pagetables:144kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:9708 all_unreclaimable? yes lowmem_reserve[]: 0 1732 1732 1732 Node 0 DMA32 free:5200kB min:5200kB low:6500kB high:7800kB active_anon:1151516kB inactive_anon:8196kB active_file:42640kB inactive_file:451076kB unevictable:0kB isolated(anon):116kB isolated(file):3564kB present:2080640kB managed:1775332kB mlocked:0kB dirty:433368kB writeback:21232kB mapped:39144kB shmem:8452kB slab_reclaimable:22056kB slab_unreclaimable:28100kB kernel_stack:20976kB pagetables:9404kB unstable:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:2701604 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 25*4kB (UME) 16*8kB (UME) 3*16kB (UE) 5*32kB (UME) 2*64kB (UM) 2*128kB (ME) 2*256kB (ME) 1*512kB (E) 1*1024kB (E) 2*2048kB (ME) 0*4096kB = 6964kB Node 0 DMA32: 925*4kB (UME) 140*8kB (UME) 5*16kB (ME) 5*32kB (M) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5060kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 126847 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524157 pages RAM 0 pages HighMem/MovableOnly 76348 pages reserved 0 pages hwpoisoned Out of memory: Kill process 4450 (file_io.00) score 998 or sacrifice child Killed process 4450 (file_io.00) total-vm:4308kB, anon-rss:100kB, file-rss:1184kB, shmem-rss:0kB kthreadd: page allocation failure: order:0, mode:0x2200020 file_io.00: page allocation failure: order:0, mode:0x2200020 CPU: 0 PID: 4457 Comm: file_io.00 Not tainted 4.5.0-rc7+ #45 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 Call Trace: warn_alloc_failed+0xf7/0x150 __alloc_pages_nodemask+0x23f/0xa60 alloc_pages_current+0x87/0x110 new_slab+0x3a1/0x440 ___slab_alloc+0x3cf/0x590 __slab_alloc.isra.64+0x18/0x1d kmem_cache_alloc+0x11c/0x150 wb_start_writeback+0x39/0x90 wakeup_flusher_threads+0x7f/0xf0 do_try_to_free_pages+0x1f9/0x410 try_to_free_pages+0x94/0xc0 __alloc_pages_nodemask+0x566/0xa60 alloc_pages_current+0x87/0x110 __page_cache_alloc+0xaf/0xc0 pagecache_get_page+0x88/0x260 grab_cache_page_write_begin+0x21/0x40 xfs_vm_write_begin+0x2f/0xf0 generic_perform_write+0xca/0x1c0 xfs_file_buffered_aio_write+0xcc/0x1f0 xfs_file_write_iter+0x84/0x140 __vfs_write+0xc7/0x100 vfs_write+0x9d/0x190 SyS_write+0x50/0xc0 entry_SYSCALL_64_fastpath+0x12/0x6a Mem-Info: active_anon:293335 inactive_anon:2093 isolated_anon:0 active_file:10829 inactive_file:110045 isolated_file:32 unevictable:0 dirty:109275 writeback:822 unstable:0 slab_reclaimable:5489 slab_unreclaimable:10070 mapped:9999 shmem:2159 pagetables:2420 bounce:0 free:3 free_pcp:0 free_cma:0 Node 0 DMA free:12kB min:44kB low:52kB high:64kB active_anon:6060kB inactive_anon:176kB active_file:708kB inactive_file:756kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15988kB managed:15904kB mlocked:0kB dirty:756kB writeback:0kB mapped:736kB shmem:184kB slab_reclaimable:48kB slab_unreclaimable:7160kB kernel_stack:160kB pagetables:144kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:9844 all_unreclaimable? yes lowmem_reserve[]: 0 1732 1732 1732 Node 0 DMA32 free:0kB min:5200kB low:6500kB high:7800kB active_anon:1167280kB inactive_anon:8196kB active_file:42608kB inactive_file:439424kB unevictable:0kB isolated(anon):0kB isolated(file):128kB present:2080640kB managed:1775332kB mlocked:0kB dirty:436344kB writeback:3288kB mapped:39260kB shmem:8452kB slab_reclaimable:21908kB slab_unreclaimable:33120kB kernel_stack:20976kB pagetables:9536kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:11073180 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 123086 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524157 pages RAM 0 pages HighMem/MovableOnly 76348 pages reserved 0 pages hwpoisoned SLUB: Unable to allocate memory on node -1 (gfp=0x2088020) cache: kmalloc-64, object size: 64, buffer size: 64, default order: 0, min order: 0 node 0: slabs: 3218, objs: 205952, free: 0 file_io.00: page allocation failure: order:0, mode:0x2200020 CPU: 0 PID: 4457 Comm: file_io.00 Not tainted 4.5.0-rc7+ #45 Assuming that somebody will find a better solution, let's apply this patch for now to stop bleeding, for this problem frequently prevents me from testing OOM livelock condition. Link: http://lkml.kernel.org/r/20160318131136.GE7152@quack.suse.cz Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Jan Kara <jack@suse.cz> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> diff 78ebc2f7 Fri May 20 17:58:10 MDT 2016 Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> mm,writeback: don't use memory reserves for wb_start_writeback When writeback operation cannot make forward progress because memory allocation requests needed for doing I/O cannot be satisfied (e.g. under OOM-livelock situation), we can observe flood of order-0 page allocation failure messages caused by complete depletion of memory reserves. This is caused by unconditionally allocating "struct wb_writeback_work" objects using GFP_ATOMIC from PF_MEMALLOC context. __alloc_pages_nodemask() { __alloc_pages_slowpath() { __alloc_pages_direct_reclaim() { __perform_reclaim() { current->flags |= PF_MEMALLOC; try_to_free_pages() { do_try_to_free_pages() { wakeup_flusher_threads() { wb_start_writeback() { kzalloc(sizeof(*work), GFP_ATOMIC) { /* ALLOC_NO_WATERMARKS via PF_MEMALLOC */ } } } } } current->flags &= ~PF_MEMALLOC; } } } } Since I/O is stalling, allocating writeback requests forever shall deplete memory reserves. Fortunately, since wb_start_writeback() can fall back to wb_wakeup() when allocating "struct wb_writeback_work" failed, we don't need to allow wb_start_writeback() to use memory reserves. Mem-Info: active_anon:289393 inactive_anon:2093 isolated_anon:29 active_file:10838 inactive_file:113013 isolated_file:859 unevictable:0 dirty:108531 writeback:5308 unstable:0 slab_reclaimable:5526 slab_unreclaimable:7077 mapped:9970 shmem:2159 pagetables:2387 bounce:0 free:3042 free_pcp:0 free_cma:0 Node 0 DMA free:6968kB min:44kB low:52kB high:64kB active_anon:6056kB inactive_anon:176kB active_file:712kB inactive_file:744kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15988kB managed:15904kB mlocked:0kB dirty:756kB writeback:0kB mapped:736kB shmem:184kB slab_reclaimable:48kB slab_unreclaimable:208kB kernel_stack:160kB pagetables:144kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:9708 all_unreclaimable? yes lowmem_reserve[]: 0 1732 1732 1732 Node 0 DMA32 free:5200kB min:5200kB low:6500kB high:7800kB active_anon:1151516kB inactive_anon:8196kB active_file:42640kB inactive_file:451076kB unevictable:0kB isolated(anon):116kB isolated(file):3564kB present:2080640kB managed:1775332kB mlocked:0kB dirty:433368kB writeback:21232kB mapped:39144kB shmem:8452kB slab_reclaimable:22056kB slab_unreclaimable:28100kB kernel_stack:20976kB pagetables:9404kB unstable:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:2701604 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 25*4kB (UME) 16*8kB (UME) 3*16kB (UE) 5*32kB (UME) 2*64kB (UM) 2*128kB (ME) 2*256kB (ME) 1*512kB (E) 1*1024kB (E) 2*2048kB (ME) 0*4096kB = 6964kB Node 0 DMA32: 925*4kB (UME) 140*8kB (UME) 5*16kB (ME) 5*32kB (M) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5060kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 126847 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524157 pages RAM 0 pages HighMem/MovableOnly 76348 pages reserved 0 pages hwpoisoned Out of memory: Kill process 4450 (file_io.00) score 998 or sacrifice child Killed process 4450 (file_io.00) total-vm:4308kB, anon-rss:100kB, file-rss:1184kB, shmem-rss:0kB kthreadd: page allocation failure: order:0, mode:0x2200020 file_io.00: page allocation failure: order:0, mode:0x2200020 CPU: 0 PID: 4457 Comm: file_io.00 Not tainted 4.5.0-rc7+ #45 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 Call Trace: warn_alloc_failed+0xf7/0x150 __alloc_pages_nodemask+0x23f/0xa60 alloc_pages_current+0x87/0x110 new_slab+0x3a1/0x440 ___slab_alloc+0x3cf/0x590 __slab_alloc.isra.64+0x18/0x1d kmem_cache_alloc+0x11c/0x150 wb_start_writeback+0x39/0x90 wakeup_flusher_threads+0x7f/0xf0 do_try_to_free_pages+0x1f9/0x410 try_to_free_pages+0x94/0xc0 __alloc_pages_nodemask+0x566/0xa60 alloc_pages_current+0x87/0x110 __page_cache_alloc+0xaf/0xc0 pagecache_get_page+0x88/0x260 grab_cache_page_write_begin+0x21/0x40 xfs_vm_write_begin+0x2f/0xf0 generic_perform_write+0xca/0x1c0 xfs_file_buffered_aio_write+0xcc/0x1f0 xfs_file_write_iter+0x84/0x140 __vfs_write+0xc7/0x100 vfs_write+0x9d/0x190 SyS_write+0x50/0xc0 entry_SYSCALL_64_fastpath+0x12/0x6a Mem-Info: active_anon:293335 inactive_anon:2093 isolated_anon:0 active_file:10829 inactive_file:110045 isolated_file:32 unevictable:0 dirty:109275 writeback:822 unstable:0 slab_reclaimable:5489 slab_unreclaimable:10070 mapped:9999 shmem:2159 pagetables:2420 bounce:0 free:3 free_pcp:0 free_cma:0 Node 0 DMA free:12kB min:44kB low:52kB high:64kB active_anon:6060kB inactive_anon:176kB active_file:708kB inactive_file:756kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15988kB managed:15904kB mlocked:0kB dirty:756kB writeback:0kB mapped:736kB shmem:184kB slab_reclaimable:48kB slab_unreclaimable:7160kB kernel_stack:160kB pagetables:144kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:9844 all_unreclaimable? yes lowmem_reserve[]: 0 1732 1732 1732 Node 0 DMA32 free:0kB min:5200kB low:6500kB high:7800kB active_anon:1167280kB inactive_anon:8196kB active_file:42608kB inactive_file:439424kB unevictable:0kB isolated(anon):0kB isolated(file):128kB present:2080640kB managed:1775332kB mlocked:0kB dirty:436344kB writeback:3288kB mapped:39260kB shmem:8452kB slab_reclaimable:21908kB slab_unreclaimable:33120kB kernel_stack:20976kB pagetables:9536kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:11073180 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 123086 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524157 pages RAM 0 pages HighMem/MovableOnly 76348 pages reserved 0 pages hwpoisoned SLUB: Unable to allocate memory on node -1 (gfp=0x2088020) cache: kmalloc-64, object size: 64, buffer size: 64, default order: 0, min order: 0 node 0: slabs: 3218, objs: 205952, free: 0 file_io.00: page allocation failure: order:0, mode:0x2200020 CPU: 0 PID: 4457 Comm: file_io.00 Not tainted 4.5.0-rc7+ #45 Assuming that somebody will find a better solution, let's apply this patch for now to stop bleeding, for this problem frequently prevents me from testing OOM livelock condition. Link: http://lkml.kernel.org/r/20160318131136.GE7152@quack.suse.cz Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Jan Kara <jack@suse.cz> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
/linux-master/arch/x86/mm/ | ||
H A D | numa_64.c | diff cef625ee Wed Feb 10 02:20:18 MST 2010 Yinghai Lu <yinghai@kernel.org> x86: Make early_node_mem get mem > 4 GB if possible So we could put pgdata for the node high, and later sparse vmmap will get the section nr that need. With this patch will make <4 GB ram not use a sparse vmmap. before this patch, will get, before swiotlb try get bootmem [ 0.000000] nid=1 start=0 end=2080000 aligned=1 [ 0.000000] free [10 - 96] [ 0.000000] free [b12 - 1000] [ 0.000000] free [359f - 38a3] [ 0.000000] free [38b5 - 3a00] [ 0.000000] free [41e01 - 42000] [ 0.000000] free [73dde - 73e00] [ 0.000000] free [73fdd - 74000] [ 0.000000] free [741dd - 74200] [ 0.000000] free [743dd - 74400] [ 0.000000] free [745dd - 74600] [ 0.000000] free [747dd - 74800] [ 0.000000] free [749dd - 74a00] [ 0.000000] free [74bdd - 74c00] [ 0.000000] free [74ddd - 74e00] [ 0.000000] free [74fdd - 75000] [ 0.000000] free [751dd - 75200] [ 0.000000] free [753dd - 75400] [ 0.000000] free [755dd - 75600] [ 0.000000] free [757dd - 75800] [ 0.000000] free [759dd - 75a00] [ 0.000000] free [75bdd - 7bf5f] [ 0.000000] free [7f730 - 7f750] [ 0.000000] free [100000 - 2080000] [ 0.000000] total free 1f87170 [ 93.301474] Placing 64MB software IO TLB between ffff880075bdd000 - ffff880079bdd000 [ 93.311814] software IO TLB at phys 0x75bdd000 - 0x79bdd000 with this patch will get: before swiotlb try get bootmem [ 0.000000] nid=1 start=0 end=2080000 aligned=1 [ 0.000000] free [a - 96] [ 0.000000] free [702 - 1000] [ 0.000000] free [359f - 3600] [ 0.000000] free [37de - 3800] [ 0.000000] free [39dd - 3a00] [ 0.000000] free [3bdd - 3c00] [ 0.000000] free [3ddd - 3e00] [ 0.000000] free [3fdd - 4000] [ 0.000000] free [41dd - 4200] [ 0.000000] free [43dd - 4400] [ 0.000000] free [45dd - 4600] [ 0.000000] free [47dd - 4800] [ 0.000000] free [49dd - 4a00] [ 0.000000] free [4bdd - 4c00] [ 0.000000] free [4ddd - 4e00] [ 0.000000] free [4fdd - 5000] [ 0.000000] free [51dd - 5200] [ 0.000000] free [53dd - 5400] [ 0.000000] free [55dd - 7bf5f] [ 0.000000] free [7f730 - 7f750] [ 0.000000] free [100428 - 100600] [ 0.000000] free [13ea01 - 13ec00] [ 0.000000] free [170800 - 2080000] [ 0.000000] total free 1f87170 [ 92.689485] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 92.699799] Placing 64MB software IO TLB between ffff8800055dd000 - ffff8800095dd000 [ 92.710916] software IO TLB at phys 0x55dd000 - 0x95dd000 so will get enough space below 4G, aka pfn 0x100000 Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1265793639-15071-15-git-send-email-yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> |
/linux-master/net/wireless/ | ||
H A D | core.h | diff 80a3511d Fri May 01 22:39:30 MDT 2009 Luis R. Rodriguez <lrodriguez@atheros.com> cfg80211: add debugfs HT40 allow map Here's a screenshot of what this looks like with ath9k: mcgrof@pogo /debug/ieee80211/phy0 $ cat ht40allow_map 2412 HT40 + 2417 HT40 + 2422 HT40 + 2427 HT40 + 2432 HT40 -+ 2437 HT40 -+ 2442 HT40 -+ 2447 HT40 - 2452 HT40 - 2457 HT40 - 2462 HT40 - 2467 Disabled 2472 Disabled 2484 Disabled 5180 HT40 + 5200 HT40 -+ 5220 HT40 -+ 5240 HT40 -+ 5260 HT40 -+ 5280 HT40 -+ 5300 HT40 -+ 5320 HT40 - 5500 HT40 + 5520 HT40 -+ 5540 HT40 -+ 5560 HT40 -+ 5580 HT40 -+ 5600 HT40 -+ 5620 HT40 -+ 5640 HT40 -+ 5660 HT40 -+ 5680 HT40 -+ 5700 HT40 - 5745 HT40 + 5765 HT40 -+ 5785 HT40 -+ 5805 HT40 -+ 5825 HT40 - Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> |
/linux-master/arch/powerpc/kernel/ | ||
H A D | prom_init.c | diff 94d2dde7 Thu Jan 24 22:25:32 MST 2008 Grant Likely <grant.likely@secretlab.ca> [POWERPC] Efika: prune fixups and make them more carefull Prune back Efika fixups to only include changes that are actually required to get a working system. Most of the drivers can accept the compatible properties, even if they don't match the what is recommented in the generic names recommended practice document. This patch also adds extra checks so that fixups are not performed blindly. Instead, the code first verifies that the device tree is faulty before making any changes. This way, if the Efika firmware is updated to fix these issues, then the fixups will no longer get applied. At this point; here is the list of fixups needed for the efika: 1. If the device_type property on the root node is 'chrp', then Linux won't boot. Change device_type to 'efika' to avoid this condition 2. Add full interrupt list to the bestcomm node. In actual fact, the bestcomm interrupts property is technically correct, it just doesn't expose the same granularity as the device driver expects. All other 5200 device trees provide a separate irq number for each bestcomm channel. Rather than hack the driver, it's simpler to fix it up 3. /builtin/sound node is missing an interrupts property 4. /builtin/ethernet node is missing a phy-handle property and the device driver doesn't know what to do without one. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> |
/linux-master/arch/powerpc/boot/ | ||
H A D | Makefile | diff bfee95bb Wed Feb 04 13:39:17 MST 2009 Grant Likely <grant.likely@secretlab.ca> powerpc/5200: Add support for the Media5200 board from Freescale This patch adds board support for the Media5200 platform. Changes are: - add the media5200 device tree - add the media5200 platform support code and cascaded interrupt controller - add media5200 to the build targets. Note: this patch also includes a minor tweak to the lite5200(b) target images list to add the .dtb files to the image list. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> |
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