13 Feb
2018
13 Feb
'18
3:42 p.m.
On Sun, Feb 11, 2018 at 11:32:03AM +0100, Ingo Molnar wrote:
- Jens Axboe axboe@kernel.dk wrote:
On 2/10/18 7:14 AM, Tetsuo Handa wrote:
Recently, we are seeing I/O hungup reports.
I don't know whether a regression introduced by commit 50816c48997af857 ("sched/wait: Standardize internal naming of wait-queue entries") is relevant. But shouldn't we backport commit c6b9d9a330290144 ("sched/wait: Fix add_wait_queue() behavioral change") to 4.13+ kernels anyway?
Yes, it most certainly should!
Indeed, the bug was introduced in v4.13 and the fix was included in v4.15, but it's missing from v4.13 and v4.14 - not sure how I missed that.
The fix (also attached below) applies cleanly to both v4.13 and v4.14:
Now queued up, thanks.
greg k-h