io_uring regression - lost write request

Bug #1952222 reported by Stefan Metzmacher
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-hwe-5.13 (Ubuntu)
Undecided
Unassigned
linux-oem-5.13 (Ubuntu)
Undecided
Unassigned
linux-oem-5.14 (Ubuntu)
Undecided
Unassigned

Bug Description

There's a regression with io_uring reported against 5.11-5.14 kernels, see:

https://lore.kernel.<email address hidden>/T/#m8bf4fdb4c91d8ea231517d9f936d1e4354c40a3b

From reading the thread and looking at the history in linux-stable/linux-5.15.y,
I assume that Linux 5.15.3 is the first fully fixed version.
And 5.10 was not affected.

Sadly all other versions are EOL for kernel.org.

But ubuntu provides 5.11, 5.13 and 5.14 based kernels,
which most likely have the bug.

I'm reporting it against linux-hwe-5.13 as that's what I test on most systems,
but others e.g. linux-oem-5.13 and linux-oem-5.14 have the same problem.

affects: samba (Ubuntu) → linux-hwe-5.13 (Ubuntu)
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