[PATCH 5.18 0365/1095] rcutorture: Make kvm.sh allow more memory for --kasan runs

Greg Kroah-Hartman
2022-08-15T21:08:34Z

From: Paul E. McKenney <paulmck@kernel.org>

[ Upstream commit 31015625768e6d8bc808a892b221b69afaaa8d07 ]

KASAN allots significant memory to track allocation state, and the amount
of memory has increased recently, which results in frequent OOMs on a
few of the rcutorture scenarios. This commit therefore provides 2G of
memory for --kasan runs, up from the 512M default.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/rcutorture/bin/kvm.sh | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 55b2c1533282..b9f4d41da30e 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -44,6 +44,7 @@ TORTURE_KCONFIG_KASAN_ARG=""
TORTURE_KCONFIG_KCSAN_ARG=""
TORTURE_KMAKE_ARG=""
TORTURE_QEMU_MEM=512
+torture_qemu_mem_default=1
TORTURE_REMOTE=
TORTURE_SHUTDOWN_GRACE=180
TORTURE_SUITE=rcu
@@ -180,6 +181,10 @@ do
;;
--kasan)
TORTURE_KCONFIG_KASAN_ARG="CONFIG_DEBUG_INFO=y CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG
+ if test -n "$torture_qemu_mem_default"
+ then
+ TORTURE_QEMU_MEM=2G
+ fi
;;
--kconfig|--kconfigs)
checkarg --kconfig "(Kconfig options)" $# "$2" '^CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\( CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\)*$' '^error$'
@@ -202,6 +207,7 @@ do
--memory)
checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error
TORTURE_QEMU_MEM=$2
+ torture_qemu_mem_default=
shift
;;
--no-initrd)
--
2.35.1