Re: [PATCH v2] io-wq: backoff when retrying worker creation

[Jens Axboe <axboe@kernel.dk>]

On Sat, 08 Feb 2025 13:42:13 -0700, Uday Shankar wrote:
> When io_uring submission goes async for the first time on a given task,
> we'll try to create a worker thread to handle the submission. Creating
> this worker thread can fail due to various transient conditions, such as
> an outstanding signal in the forking thread, so we have retry logic with
> a limit of 3 retries. However, this retry logic appears to be too
> aggressive/fast - we've observed a thread blowing through the retry
> limit while having the same outstanding signal the whole time. Here's an
> excerpt of some tracing that demonstrates the issue:
> 
> [...]

Applied, thanks!

[1/1] io-wq: backoff when retrying worker creation
      (no commit info)

Best regards,
-- 
Jens Axboe