1#!/bin/bash
2#
3# Check the console output from an rcutorture run for oopses.
4# The "file" is a pathname on the local system, and "title" is
5# a text string for error-message purposes.
6#
7# Usage: parse-console.sh file title
8#
9# This program is free software; you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation; either version 2 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program; if not, you can access it online at
21# http://www.gnu.org/licenses/gpl-2.0.html.
22#
23# Copyright (C) IBM Corporation, 2011
24#
25# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
26
27T=${TMPDIR-/tmp}/parse-console.sh.$$
28file="$1"
29title="$2"
30
31trap 'rm -f $T.seq $T.diags' 0
32
33. functions.sh
34
35# Check for presence and readability of console output file
36if test -f "$file" -a -r "$file"
37then
38	:
39else
40	echo $title unreadable console output file: $file
41	exit 1
42fi
43if grep -Pq '\x00' < $file
44then
45	print_warning Console output contains nul bytes, old qemu still running?
46fi
47cat /dev/null > $file.diags
48
49# Check for proper termination, except that rcuperf runs don't indicate this.
50if test "$TORTURE_SUITE" != rcuperf
51then
52	# check for abject failure
53
54	if grep -q FAILURE $file || grep -q -e '-torture.*!!!' $file
55	then
56		nerrs=`grep --binary-files=text '!!!' $file |
57		tail -1 |
58		awk '
59		{
60			for (i=NF-8;i<=NF;i++)
61				sum+=$i;
62		}
63		END { print sum }'`
64		print_bug $title FAILURE, $nerrs instances
65		exit
66	fi
67
68	grep --binary-files=text 'torture:.*ver:' $file |
69	egrep --binary-files=text -v '\(null\)|rtc: 000000000* ' |
70	sed -e 's/^(initramfs)[^]]*] //' -e 's/^\[[^]]*] //' |
71	awk '
72	BEGIN	{
73		ver = 0;
74		badseq = 0;
75		}
76
77		{
78		if (!badseq && ($5 + 0 != $5 || $5 <= ver)) {
79			badseqno1 = ver;
80			badseqno2 = $5;
81			badseqnr = NR;
82			badseq = 1;
83		}
84		ver = $5
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
120egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:|detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state|rcu_.*kthread starved for' < $file |
121grep -v 'ODEBUG: ' |
122grep -v 'Warning: unable to open an initial console' > $T.diags
123if test -s $T.diags
124then
125	print_warning "Assertion failure in $file $title"
126	# cat $T.diags
127	summary=""
128	n_badness=`grep -c Badness $file`
129	if test "$n_badness" -ne 0
130	then
131		summary="$summary  Badness: $n_badness"
132	fi
133	n_warn=`grep -v 'Warning: unable to open an initial console' $file | egrep -c 'WARNING:|Warn'`
134	if test "$n_warn" -ne 0
135	then
136		summary="$summary  Warnings: $n_warn"
137	fi
138	n_bugs=`egrep -c 'BUG|Oops:' $file`
139	if test "$n_bugs" -ne 0
140	then
141		summary="$summary  Bugs: $n_bugs"
142	fi
143	n_calltrace=`grep -c 'Call Trace:' $file`
144	if test "$n_calltrace" -ne 0
145	then
146		summary="$summary  Call Traces: $n_calltrace"
147	fi
148	n_lockdep=`grep -c =========== $file`
149	if test "$n_badness" -ne 0
150	then
151		summary="$summary  lockdep: $n_badness"
152	fi
153	n_stalls=`egrep -c 'detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state' $file`
154	if test "$n_stalls" -ne 0
155	then
156		summary="$summary  Stalls: $n_stalls"
157	fi
158	n_starves=`grep -c 'rcu_.*kthread starved for' $file`
159	if test "$n_starves" -ne 0
160	then
161		summary="$summary  Starves: $n_starves"
162	fi
163	print_warning Summary: $summary
164	cat $T.diags >> $file.diags
165fi
166for i in $file.*.diags
167do
168	if test -f "$i"
169	then
170		cat $i >> $file.diags
171	fi
172done
173if ! test -s $file.diags
174then
175	rm -f $file.diags
176fi
177