linux-kernel - Re: epoll with ONESHOT possibly fails to deliver events

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Date:	Tue, 18 Dec 2012 02:07:32 +0000
From:	Eric Wong <normalperson@...t.net>
To:	Andreas Voellmy <andreas.voellmy@...e.edu>
Cc:	viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"junchang.wang@...e.edu Wang" <junchang.wang@...e.edu>
Subject: Re: epoll with ONESHOT possibly fails to deliver events

Andreas Voellmy <andreas.voellmy@...e.edu> wrote:
> There were a couple of errors in the code when I posted my last
> message. I have fixed those. The epoll bug still occurs. 

Sorry I haven't gotten around to this.

Can you reproduce this with fewer cores? (I only have 4 at most).
Have you tried the latest stable kernel version?

Can you reproduce this over TCP loopback, or only across two machines?
If the latter, it could also be a driver or firmware bug...
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