Searched hist:226517 (Results 1 - 3 of 3) sorted by relevance
| /freebsd-10.2-release/sys/mips/include/ | ||
| H A D | md_var.h | diff 226517 Tue Oct 18 16:37:43 MDT 2011 jchandra Fix wakeup latency when sleeping with 'wait' If we handle an interrupt just before the 'wait' and the interrupt schedules some work, we need to skip the 'wait' call. The simple solution of calling sched_runnable() with interrupts disabled immediately before wait still leaves a window after the call and before 'wait' in which the same issue can occur. The solution implemented is to check the EPC in the interrupt handler, and if it is in a region before the 'wait' call, to fix up the EPC to skip the wait call. Reported/analysed by: adrian Fix suggested by: kib Reviewed by: jmallett, imp |
| /freebsd-10.2-release/sys/mips/mips/ | ||
| H A D | exception.S | diff 226517 Tue Oct 18 16:37:43 MDT 2011 jchandra Fix wakeup latency when sleeping with 'wait' If we handle an interrupt just before the 'wait' and the interrupt schedules some work, we need to skip the 'wait' call. The simple solution of calling sched_runnable() with interrupts disabled immediately before wait still leaves a window after the call and before 'wait' in which the same issue can occur. The solution implemented is to check the EPC in the interrupt handler, and if it is in a region before the 'wait' call, to fix up the EPC to skip the wait call. Reported/analysed by: adrian Fix suggested by: kib Reviewed by: jmallett, imp |
| H A D | machdep.c | diff 226517 Tue Oct 18 16:37:43 MDT 2011 jchandra Fix wakeup latency when sleeping with 'wait' If we handle an interrupt just before the 'wait' and the interrupt schedules some work, we need to skip the 'wait' call. The simple solution of calling sched_runnable() with interrupts disabled immediately before wait still leaves a window after the call and before 'wait' in which the same issue can occur. The solution implemented is to check the EPC in the interrupt handler, and if it is in a region before the 'wait' call, to fix up the EPC to skip the wait call. Reported/analysed by: adrian Fix suggested by: kib Reviewed by: jmallett, imp |
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