On 7/19/19 6:46 AM, Petr Mladek wrote:
On Thu 2019-07-18 16:42:25, Joe Lawrence wrote:
On 7/18/19 4:29 PM, Joe Lawrence wrote:
The livepatching self-tests tweak the dynamic debug config to verify the kernel log during the tests. Enhance set_dynamic_debug() so that the config changes are restored when the script exits.
diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh index de5a504ffdbc..860f27665ebd 100644 --- a/tools/testing/selftests/livepatch/functions.sh +++ b/tools/testing/selftests/livepatch/functions.sh @@ -29,13 +29,27 @@ function die() { exit 1 } -# set_dynamic_debug() - setup kernel dynamic debug -# TODO - push and pop this config? +function push_dynamic_debug() {
DYNAMIC_DEBUG=$(grep '^kernel/livepatch' /sys/kernel/debug/dynamic_debug/control | \awk -F'[: ]' '{print "file " $1 " line " $2 " " $4}')+}
It works for me, though I feel that the /sys/kernel/debug/dynamic_debug/control output to input translation is brittle. It would be nice to have some kind of mass export/import capability for that interface.
I believe that the format is pretty stable. We could always reconsider it when it breaks.
I could confirm that it restores the original state, so:
Tested-by: Petr Mladek pmladek@suse.com
Best Regards, Petr
Hi Shuah,
Can you review and route this patch through your tree as well?
Thanks,
-- Joe