linux-kernel - Re: [PATCH 0/2] eventpoll: Fix epoll

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Message-ID: <875xdh35ds.fsf@yellow.woof>
Date: Wed, 17 Sep 2025 09:27:59 +0200
From: Nam Cao <namcao@...utronix.de>
To: Alexander Viro <viro@...iv.linux.org.uk>, Christian Brauner
 <brauner@...nel.org>, Jan Kara <jack@...e.cz>, Shuah Khan
 <shuah@...nel.org>, Davidlohr Bueso <dave@...olabs.net>, Soheil Hassas
 Yeganeh <soheil@...gle.com>, Khazhismel Kumykov <khazhy@...gle.com>,
 Willem de Bruijn <willemb@...gle.com>, Eric Dumazet <edumazet@...gle.com>,
 Jens Axboe <axboe@...nel.dk>, linux-fsdevel@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 0/2] eventpoll: Fix epoll_wait() report false negative

Nam Cao <namcao@...utronix.de> writes:
> While staring at epoll, I noticed ep_events_available() looks wrong. I
> wrote a small program to confirm, and yes it is definitely wrong.
>
> This series adds a reproducer to kselftest, and fix the bug.

Friendly reminder that this exists.

This probably only appears once in a blue moon, and the impact is
probably not significant. But it still should be fixed.

Nam