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Merge pull request #1108 from sm00th/verbose_stall

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integration test: more debug info on stalled transition
This commit is contained in:
Yannick Cote 2020-05-27 06:18:09 -04:00 committed by GitHub
commit 91952cbf86
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2 changed files with 9 additions and 1 deletions
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4
kpatch/kpatch
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@ -217,7 +217,7 @@ show_stalled_processes() {
echo "Stalled processes:"
for proc_task in /proc/[0-9]*/task/[0-9]*; do
tid=${proc_task#*/task/}
is_stalled "$module" "$tid" && echo "$tid $(cat "$proc_task"/comm 2>/dev/null)"
is_stalled "$module" "$tid" && echo -e "$tid $(cat "$proc_task"/comm 2>/dev/null)\nstack:\n$(cat "$proc_task"/stack 2>/dev/null)"
done
}
@ -291,6 +291,7 @@ load_module () {
echo "module already loaded, re-enabling"
echo 1 > "${moddir}/enabled" || die "failed to re-enable module $modname"
if ! wait_for_patch_transition "$modname" ; then
show_stalled_processes
echo "module $modname did not complete its transition, disabling..."
echo 0 > "${moddir}/enabled" || die "failed to disable module $modname"
wait_for_patch_transition "$modname"
@ -327,6 +328,7 @@ load_module () {
fi
if ! wait_for_patch_transition "$modname" ; then
show_stalled_processes
echo "module $modname did not complete its transition, unloading..."
unload_module "$modname"
die "error: failed to load module $modname (transition stalled)"

6
test/integration/kpatch-test
View File

@ -49,6 +49,7 @@ unset CCACHE_HASHDIR
KPATCHBUILD="$ROOTDIR"/kpatch-build/kpatch-build
ERROR=0
LOG=test.log
DYNDEBUG_CONTROL=/sys/kernel/debug/dynamic_debug/control
rm -f *.log
PATCHDIR="${PATCHDIR:-$PWD}"
@ -294,6 +295,9 @@ build_combined_module
unload_all
prev_dyndebug=$(grep klp_try_switch_task "${DYNDEBUG_CONTROL}" | awk '{print $3;}')
echo "func klp_try_switch_task +p" >"${DYNDEBUG_CONTROL}" 2>/dev/null
if [[ $QUICK != 1 ]]; then
for file in "${PATCH_LIST[@]}"; do
run_load_test $file
@ -314,6 +318,8 @@ fi
unload_all
echo "func klp_try_switch_task ${prev_dyndebug}" >"${DYNDEBUG_CONTROL}" 2>/dev/null
if dmesg | grep -q "Call Trace"; then
dmesg > dmesg.log
error "kernel error detected in printk buffer"