From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Wong Subject: Re: ppoll() stuck on POLLIN while TCP peer is sending Date: Fri, 28 Dec 2012 07:06:52 +0000 Message-ID: <20121228070652.GA6292@dcvr.yhbt.net> References: <20121228014503.GA5017@dcvr.yhbt.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Andreas Voellmy , viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, "Junchang(Jason) Wang" To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Return-path: Content-Disposition: inline In-Reply-To: <20121228014503.GA5017@dcvr.yhbt.net> Sender: netdev-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Eric Wong 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.