linux-kernel - Re: ppoll() stuck on POLLIN while TCP peer is sending

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Message-ID: <20121228070652.GA6292@dcvr.yhbt.net>
Date:	Fri, 28 Dec 2012 07:06:52 +0000
From:	Eric Wong <normalperson@...t.net>
To:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Andreas Voellmy <andreas.voellmy@...e.edu>,
	viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org,
	"Junchang(Jason) Wang" <junchang.wang@...e.edu>
Subject: Re: ppoll() stuck on POLLIN while TCP peer is sending

Eric Wong <normalperson@...t.net> wrote:
> I'm finding ppoll() unexpectedly stuck when waiting for POLLIN on a
> local TCP socket.  The isolated code below can reproduces the issue
> after many minutes (<1 hour).  It might be easier to reproduce on
> a busy system while disk I/O is happening.

Ugh, I can't seem to reproduce this anymore...  Will try something
else tomorrow.
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