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Bug#958368: marked as done (Hard IO Hangs)

Your message dated Thu, 20 Feb 2025 13:05:29 +0100 (CET)
with message-id <20250220120529.9BB8FBE2EE7@eldamar.lan>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #958368,
regarding Hard IO Hangs
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
958368: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=958368
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: linux-image-4.19.0-8-amd64
Version: 4.19.98-1

Hello everyone,

We have recently migrated our fleet over to Debian 10.3 which runs kernel 4.19.98.
Since then we started noticing sporadic hard IO hangs. Any process involving IO
would freeze in 'D' state. Processes that don't do IO would continue functioning
normally.

After reboot there is absolutely nothing left in the logs.
To capture more of this we setup netconsole logging remotely and configured:

kernel.hung_task_panic=1
kernel.hung_task_timeout_secs=20

So far this issue has occurred across different hardware models as well
as EC2 virtual instances.

I attach here an example kernel trace after a recent panic and I hope that
someone might point us to the right direction if this issue has already been
fixes or maybe suggest a patch.

Thank you in advance,
--

Attachment: iohang.log
Description: Binary data


--- End Message ---
--- Begin Message --- 
Hi

This bug was filed for a very old kernel or the bug is old itself
without resolution.

If you can reproduce it with

- the current version in unstable/testing
- the latest kernel from backports

please reopen the bug, see https://www.debian.org/Bugs/server-control
for details.

Regards,
Salvatore

--- End Message ---
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