1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0+
3#
4# Check the console output from an rcutorture run for oopses.
5# The "file" is a pathname on the local system, and "title" is
6# a text string for error-message purposes.
7#
8# Usage: parse-console.sh file title
9#
10# Copyright (C) IBM Corporation, 2011
11#
12# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
13
14T="`mktemp -d ${TMPDIR-/tmp}/parse-console.sh.XXXXXX`"
15file="$1"
16title="$2"
17
18trap 'rm -f $T.seq $T.diags' 0
19
20. functions.sh
21
22# Check for presence and readability of console output file
23if test -f "$file" -a -r "$file"
24then
25	:
26else
27	echo $title unreadable console output file: $file
28	exit 1
29fi
30if grep -Pq '\x00' < $file
31then
32	print_warning Console output contains nul bytes, old qemu still running?
33fi
34cat /dev/null > $file.diags
35
36# Check for proper termination, except for rcuscale and refscale.
37if test "$TORTURE_SUITE" != rcuscale && test "$TORTURE_SUITE" != refscale
38then
39	# check for abject failure
40
41	if grep -q FAILURE $file || grep -q -e '-torture.*!!!' $file
42	then
43		nerrs=`grep --binary-files=text '!!!' $file |
44		tail -1 |
45		awk '
46		{
47			normalexit = 1;
48			for (i=NF-8;i<=NF;i++) {
49				if (i <= 0 || i !~ /^[0-9]*$/) {
50					bangstring = $0;
51					gsub(/^\[[^]]*] /, "", bangstring);
52					print bangstring;
53					normalexit = 0;
54					exit 0;
55				}
56				sum+=$i;
57			}
58		}
59		END {
60			if (normalexit)
61				print sum " instances"
62		}'`
63		print_bug $title FAILURE, $nerrs
64		exit
65	fi
66
67	grep --binary-files=text 'torture:.*ver:' $file |
68	grep -E --binary-files=text -v '\(null\)|rtc: 000000000* ' |
69	sed -e 's/^(initramfs)[^]]*] //' -e 's/^\[[^]]*] //' |
70	sed -e 's/^.*ver: //' |
71	awk '
72	BEGIN	{
73		ver = 0;
74		badseq = 0;
75		}
76
77		{
78		if (!badseq && ($1 + 0 != $1 || $1 <= ver)) {
79			badseqno1 = ver;
80			badseqno2 = $1;
81			badseqnr = NR;
82			badseq = 1;
83		}
84		ver = $1
85		}
86
87	END	{
88		if (badseq) {
89			if (badseqno1 == badseqno2 && badseqno2 == ver)
90				print "GP HANG at " ver " torture stat " badseqnr;
91			else
92				print "BAD SEQ " badseqno1 ":" badseqno2 " last:" ver " version " badseqnr;
93		}
94		}' > $T.seq
95
96	if grep -q SUCCESS $file
97	then
98		if test -s $T.seq
99		then
100			print_warning $title `cat $T.seq`
101			echo "   " $file
102			exit 2
103		fi
104	else
105		if grep -q "_HOTPLUG:" $file
106		then
107			print_warning HOTPLUG FAILURES $title `cat $T.seq`
108			echo "   " $file
109			exit 3
110		fi
111		echo $title no success message, `grep --binary-files=text 'ver:' $file | wc -l` successful version messages
112		if test -s $T.seq
113		then
114			print_warning $title `cat $T.seq`
115		fi
116		exit 2
117	fi
118fi | tee -a $file.diags
119
120console-badness.sh < $file > $T.diags
121if test -s $T.diags
122then
123	print_warning "Assertion failure in $file $title"
124	# cat $T.diags
125	summary=""
126	n_badness=`grep -c Badness $file`
127	if test "$n_badness" -ne 0
128	then
129		summary="$summary  Badness: $n_badness"
130	fi
131	n_warn=`grep -v 'Warning: unable to open an initial console' $file | grep -v 'Warning: Failed to add ttynull console. No stdin, stdout, and stderr for the init process' | grep -E -c 'WARNING:|Warn'`
132	if test "$n_warn" -ne 0
133	then
134		summary="$summary  Warnings: $n_warn"
135	fi
136	n_bugs=`grep -E -c '\bBUG|Oops:' $file`
137	if test "$n_bugs" -ne 0
138	then
139		summary="$summary  Bugs: $n_bugs"
140	fi
141	n_kcsan=`grep -E -c 'BUG: KCSAN: ' $file`
142	if test "$n_kcsan" -ne 0
143	then
144		if test "$n_bugs" = "$n_kcsan"
145		then
146			summary="$summary (all bugs kcsan)"
147		else
148			summary="$summary  KCSAN: $n_kcsan"
149		fi
150	fi
151	n_calltrace=`grep -c 'Call Trace:' $file`
152	if test "$n_calltrace" -ne 0
153	then
154		summary="$summary  Call Traces: $n_calltrace"
155	fi
156	n_lockdep=`grep -c =========== $file`
157	if test "$n_badness" -ne 0
158	then
159		summary="$summary  lockdep: $n_badness"
160	fi
161	n_stalls=`grep -E -c 'detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state' $file`
162	if test "$n_stalls" -ne 0
163	then
164		summary="$summary  Stalls: $n_stalls"
165	fi
166	n_starves=`grep -c 'rcu_.*kthread starved for' $file`
167	if test "$n_starves" -ne 0
168	then
169		summary="$summary  Starves: $n_starves"
170	fi
171	print_warning Summary: $summary
172	cat $T.diags >> $file.diags
173fi
174for i in $file.*.diags
175do
176	if test -f "$i"
177	then
178		cat $i >> $file.diags
179	fi
180done
181if ! test -s $file.diags
182then
183	rm -f $file.diags
184fi
185
186# Call extract_ftrace_from_console function, if the output is empty,
187# don't create $file.ftrace. Otherwise output the results to $file.ftrace
188extract_ftrace_from_console $file > $file.ftrace
189if [ ! -s $file.ftrace ]; then
190	rm -f $file.ftrace
191fi
192