diff options
Diffstat (limited to 'tools/test/stress2/misc/killpg5.sh')
| -rwxr-xr-x | tools/test/stress2/misc/killpg5.sh | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/test/stress2/misc/killpg5.sh b/tools/test/stress2/misc/killpg5.sh new file mode 100755 index 000000000000..4b98d30487d4 --- /dev/null +++ b/tools/test/stress2/misc/killpg5.sh @@ -0,0 +1,19 @@ +#!/bin/sh + +# Test scenario from: +# Bug 290843 - killpg deadlock against a stopped interrupted fork +# By : Bryan Drewery <bdrewery@FreeBSD.org> + +# Seen: +# 0 70877 3650 7 0 0 14856 3680 sigsusp I+ 0 0:00.00 sh -x ./killpg5.sh +# 0 70881 70877 10 0 0 14856 3688 killpg r D+ 0 0:00.07 sh -c trap "kill -9 %1; exit" INT; foo() { unset cmd; cmd=$(/sbin/sysctl -n vm.loadavg|/u + +sh -c 'trap "kill -9 %1; exit" INT; foo() { unset cmd; cmd=$(/sbin/sysctl -n vm.loadavg|/usr/bin/awk "{print \$2,\$3,\$4}"); case "${cmd:+set}" in set) ;; *) exit 99 ;; esac }; runner() { while foo; do :; done }; launch() { local -; set -m; PS4="child+ " runner & }; set -x; while :; do launch; sleep 0.1; kill -STOP %1; kill -TERM %1; kill -CONT %1; ret=0; wait; if [ $ret -eq 99 ]; then exit 99; fi; done;' > /dev/null 2>&1 & +sleep 60 +kill -9 $! +sleep .2 +killpgpid=`ps -lUroot | grep -v grep | grep ' killpg ' | awk '{print $2}'` +[ -n "$killpgpid" ] && { ps -lp$killpgpid; exit 1; } # The bug +pgrep -f 'foo()' | xargs kill > /dev/null 2>&1 # Cleanup +wait +exit 0 |