linux-kernel - Re: [2.6.34-git8][regression] massive polling problems with udevd and other processes

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Message-ID: <20100522204426.GO31073@ZenIV.linux.org.uk>
Date:	Sat, 22 May 2010 21:44:26 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	walt <w41ter@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [2.6.34-git8][regression] massive polling problems with udevd
 and other processes

On Sat, May 22, 2010 at 01:21:19PM -0700, walt wrote:
> On 05/22/2010 12:35 PM, Shawn Starr wrote:
> >Just built today's snapshot from linus's tree and have problems with udev
> >using 100% cpu and KDE processes also pegging cpus.
> >
> >This is with Fedora 13 + snapshot kernel from git.
> >
> >Anyone else noticing this?
> 
> Yes, just bisected it to this:
> 
> commit a7cf4145bb86aaf85d4d4d29a69b50b688e2e49d
> Author: Eric Paris <eparis@>
> Date:   Fri May 14 11:44:10 2010 -0400
> 
>     anon_inode: set S_IFREG on the anon_inode

Cute...  Frankly, I'd be fine with just reverting that one and teaching
selinux to STFU.  However, I wonder what specifically is getting polled.
Which anon_inode users?

Does anybody have strace handy?
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