Re: [PATCH 2/4] selftests: ublk: propagate stress worker failures

[Ming Lei <tom.leiming@gmail.com>]

On Wed, Nov 11, 2026 at 10:57:59PM +0800, shao.mingyin@zte.com.cn wrote:
> From: Shao Mingyin <shao.mingyin@zte.com.cn>
> 
> The stress tests update ERR_CODE in background subshells and use a bare
> wait in the parent. A worker can therefore fail while the parent still
> prints PASS and exits successfully. Calling _show_result() from a worker
> also removes backing files shared with other workers.
> 
> Generalize the recovery PID collector and use it to wait for every stress
> worker in the parent. Return errors from the worker helpers, leave result
> reporting and cleanup to the parent, and reset the PID array after each
> batch. Keep failures ahead of skips when collecting worker exit statuses.
> 
> Fixes: bb2cabf23568 ("selftests: ublk: run stress tests in parallel")
> Reported-by: Ming Lei <tom.leiming@gmail.com>
> Link: https://lore.kernel.org/all/avJ0Vn9G7XhZv-XL@fedora-laptop/
> Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
> ---

Reviewed-by: Ming Lei <ming.lei@redhat.com>

Thanks,
Ming