The following commit has been merged into the core/rcu branch of tip:
Commit-ID: f716348f29d30e8ef3a1ceed3fea19490aba4fe4
Gitweb: https://git.kernel.org/tip/f716348f29d30e8ef3a1ceed3fea19490aba4fe4
Author: Paul E. McKenney <paulmck@xxxxxxxxxx>
AuthorDate: Thu, 03 Dec 2020 13:27:42 -08:00
Committer: Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Mon, 04 Jan 2021 14:01:23 -08:00
torture: Stop hanging on panic
By default, the "panic" kernel parameter is zero, which causes the kernel
to loop indefinitely after a panic(). The rcutorture scripting will
eventually kill the corresponding qemu process, but only after waiting
for the full run duration plus a few minutes. This works, but delays
notifying the developer of the failure.
This commit therefore causes the rcutorture scripting to pass the
"panic=-1" kernel parameter, which caused the kernel to instead
unceremoniously shut down immediately. This in turn causes qemu to
terminate, so that if all of the runs in a given batch panic(), the
rcutorture scripting can immediately proceed to the next batch.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
tools/testing/selftests/rcutorture/bin/functions.sh | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/rcutorture/bin/functions.sh b/tools/testing/selftests/rcutorture/bin/functions.sh
index 97c3a17..c35ba24 100644
--- a/tools/testing/selftests/rcutorture/bin/functions.sh
+++ b/tools/testing/selftests/rcutorture/bin/functions.sh
@@ -203,6 +203,7 @@ identify_qemu () {
# and the TORTURE_QEMU_INTERACTIVE environment variable.
identify_qemu_append () {
echo debug_boot_weak_hash
+ echo panic=-1
local console=ttyS0
case "$1" in
qemu-system-x86_64|qemu-system-i386)
|