Re: [PATCH] selftests: ublk: mark each test start and end time in dmesg

[Ming Lei <ming.lei@redhat.com>]

On Mon, Jan 26, 2026 at 11:25:44AM +0000, Alexander Atanasov wrote:
> Log test start and end time in dmesg, so generated log messages
> during the test run can be linked to specific test from the test
> suite.
> 
> Signed-off-by: Alexander Atanasov <alex@zazolabs.com>
> ---
>  tools/testing/selftests/ublk/test_common.sh | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/tools/testing/selftests/ublk/test_common.sh b/tools/testing/selftests/ublk/test_common.sh
> index ab1ea5cc904a..5865f1e640ce 100755
> --- a/tools/testing/selftests/ublk/test_common.sh
> +++ b/tools/testing/selftests/ublk/test_common.sh
> @@ -122,6 +122,7 @@ _prep_test() {
>  	modprobe ublk_drv > /dev/null 2>&1
>  	UBLK_TMP=$(mktemp $TMPDIR/ublk_test_XXXXX)
>  	[ "$UBLK_TEST_QUIET" -eq 0 ] && echo "ublk $type: $*"
> +	echo "ublk selftest: $TID starting at $(date --iso-8601=sec)" | tee /dev/kmsg
>  }
>  
>  _remove_test_files()
> @@ -166,6 +167,7 @@ _cleanup_test() {
>  	"${UBLK_PROG}" del -a
>  
>  	_remove_files
> +	echo "ublk selftest: $TID done at $(date --iso-8601=sec)" | tee /dev/kmsg

This patch is one nice improvement!

But it can't be applied cleanly on block/for-7.0/block, can you base it
against for-7.0/block branch of block tree?

https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git/log/?h=for-7.0/block

```
[root@ktest-40 linux]# git am raw.16
Applying: selftests: ublk: mark each test start and end time in dmesg
error: patch failed: tools/testing/selftests/ublk/test_common.sh:122
error: tools/testing/selftests/ublk/test_common.sh: patch does not apply
Patch failed at 0001 selftests: ublk: mark each test start and end time in dmesg
hint: Use 'git am --show-current-patch=diff' to see the failed patch
hint: When you have resolved this problem, run "git am --continue".
hint: If you prefer to skip this patch, run "git am --skip" instead.
hint: To restore the original branch and stop patching, run "git am --abort".
hint: Disable this message with "git config advice.mergeConflict false"
```


Thanks,
Ming