On Thu, Oct 27, 2022 at 12:09:30PM +0200, Greg KH wrote:

On Wed, Oct 26, 2022 at 11:48:01AM -0700, Shakeel Butt wrote:

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On Wed, Oct 26, 2022 at 11:44 AM Michele Jr De Candia mdecandia@gmail.com wrote:

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Hi Greg, sorry for the confusion.

I'm running a container-based app on top of Ubuntu Linux 20.04 and linux kernel 5.4 always updated with latest patches.

Updating from 5.4.210 to 5.4.211 we faced the hang up issue and searching for the cause we have tested that hangup occurs only with this patch

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=l...

While understanding root cause, wt the moment we reverted it and hang up does not occurs (actually we are running 5.4.219 without that patch).

Michele

Hi Michele, can you try the latest upstream kernel and see if the issue repro ther? Also is it possible to provide a simplified repro of the issue?

Also is this issue on 5.10.y and 5.15.y?

thanks,

greg k-h

Following up this email thread for those of us who were watching it; it looks like this was only an issue on 5.4.y due to some missing backports that this change depended on - see this thread for details: https://lore.kernel.org/lkml/Y38h9oe4ZEGNd7Zx@quatroqueijos.cascardo.eti.br/...

Cheers, Sam