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Message-ID: <CALvZod5My-JaXBSm1iuVSFMiarB2YuE=O0AxD=6ZG0BfmJZ1AQ@mail.gmail.com>
Date: Wed, 26 Oct 2022 11:48:01 -0700
From: Shakeel Butt <shakeelb@...gle.com>
To: Michele Jr De Candia <mdecandia@...il.com>
Cc: Greg KH <gregkh@...uxfoundation.org>, akpm@...ux-foundation.org,
bsegall@...gle.com, edumazet@...gle.com, jbaron@...mai.com,
khazhy@...gle.com, linux-kernel@...r.kernel.org, r@....cc,
rpenyaev@...e.de, stable@...nel.org, stable@...r.kernel.org,
torvalds@...ux-foundation.org, viro@...iv.linux.org.uk
Subject: Re: [PATCH 5.4 051/389] epoll: autoremove wakers even more aggressively
On Wed, Oct 26, 2022 at 11:44 AM Michele Jr De Candia
<mdecandia@...il.com> wrote:
>
> 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=linux-5.4.y&id=cf2db24ec4b8e9d399005ececd6f6336916ab6fc
>
> 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?
Shakeel
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