linux-kernel - Re: linux-next: Tree for December 9

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Message-Id: <20081209161511.15fe8cdb.akpm@linux-foundation.org>
Date:	Tue, 9 Dec 2008 16:15:11 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Kay Sievers" <kay.sievers@...y.org>
Cc:	sfr@...b.auug.org.au, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, adobriyan@...il.com, greg@...ah.com
Subject: Re: linux-next: Tree for December 9

On Wed, 10 Dec 2008 01:06:47 +0100
"Kay Sievers" <kay.sievers@...y.org> wrote:

> On Wed, Dec 10, 2008 at 00:34, Andrew Morton <akpm@...ux-foundation.org> wrote:
> > On Tue, 9 Dec 2008 18:52:37 +1100
> > Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> >> I have created today's linux-next tree at
> >> git://git.kernel.org/pub/scm/linux/kernel/git/sfr/linux-next.git
> >
> > udevd is sitting there chewing up 100% of a CPU all the time.
> >
> > The machine is x86_64, running FC6.  It still happens with
> > CONFIG_SELINUX=n.
> >
> > config:                 http://userweb.kernel.org/~akpm/config-akpm2.txt
> > dmesg:                  http://userweb.kernel.org/~akpm/dmesg-akpm2.txt
> > strace of udevd:        http://userweb.kernel.org/~akpm/strace.out.txt
> >
> > excerpt:
> >
> > close(9)                                = 0
> > open("/proc/21707/stat", O_RDONLY)      = 9
> > read(9, "21707 (hald-addon-stor) S 21033 "..., 255) = 240
> > close(9)                                = 0
> > open("/proc/22340/stat", O_RDONLY)      = 9
> > read(9, "22340 (smartd) S 1 22339 22339 0"..., 255) = 245
> > close(9)                                = 0
> 
> Maybe an event loop, caused by something.
> 
> Are you still able to run:
>   udevmonitor --kernel
> and see if we get events, maybe in a loop, from the kernel?
> 


akpm2:/home/akpm# udevmonitor --kernel
unknown option


(lol)

akpm2:/home/akpm# udevmonitor         
udevmonitor prints the received event from the kernel [UEVENT]
and the event which udev sends out after rule processing [UDEV]

UDEV  [1228867146.103334] add@...ass/bdi/9:0
UDEV  [1228867146.107566] remove@...ock/md0
UDEV  [1228867146.111969] remove@...ass/bdi/9:0
UEVENT[1228867146.119889] add@...ock/md0
UEVENT[1228867146.119964] add@...ass/bdi/9:0
UEVENT[1228867146.120162] remove@...ass/bdi/9:0
UEVENT[1228867146.120205] remove@...ock/md0
UDEV  [1228867146.122839] add@...ock/md0
UDEV  [1228867146.129125] add@...ass/bdi/9:0
UDEV  [1228867146.133459] remove@...ock/md0
UDEV  [1228867146.137813] remove@...ass/bdi/9:0
UEVENT[1228867146.145652] add@...ock/md0
UEVENT[1228867146.145709] add@...ass/bdi/9:0
UEVENT[1228867146.145895] remove@...ass/bdi/9:0
UEVENT[1228867146.145941] remove@...ock/md0
UDEV  [1228867146.148606] add@...ock/md0
UDEV  [1228867146.154832] add@...ass/bdi/9:0
UDEV  [1228867146.159299] remove@...ock/md0
UDEV  [1228867146.163750] remove@...ass/bdi/9:0
UEVENT[1228867146.171354] add@...ock/md0
UEVENT[1228867146.171391] add@...ass/bdi/9:0
UEVENT[1228867146.171546] remove@...ass/bdi/9:0
UEVENT[1228867146.171566] remove@...ock/md0
UDEV  [1228867146.174242] add@...ock/md0
UDEV  [1228867146.180730] add@...ass/bdi/9:0
UDEV  [1228867146.185137] remove@...ock/md0
UDEV  [1228867146.189435] remove@...ass/bdi/9:0
UEVENT[1228867146.197278] add@...ock/md0
UEVENT[1228867146.197330] add@...ass/bdi/9:0
UEVENT[1228867146.197503] remove@...ass/bdi/9:0
UEVENT[1228867146.197545] remove@...ock/md0
UDEV  [1228867146.200025] add@...ock/md0
UDEV  [1228867146.206571] add@...ass/bdi/9:0
UDEV  [1228867146.210940] remove@...ock/md0
UDEV  [1228867146.215359] remove@...ass/bdi/9:0
UEVENT[1228867146.223278] add@...ock/md0
UEVENT[1228867146.223336] add@...ass/bdi/9:0
UEVENT[1228867146.223524] remove@...ass/bdi/9:0
UEVENT[1228867146.223571] remove@...ock/md0
UDEV  [1228867146.226163] add@...ock/md0
UDEV  [1228867146.232415] add@...ass/bdi/9:0
UDEV  [1228867146.236739] remove@...ock/md0
UDEV  [1228867146.241042] remove@...ass/bdi/9:0
UEVENT[1228867146.248895] add@...ock/md0
UEVENT[1228867146.249012] add@...ass/bdi/9:0
UEVENT[1228867146.249306] remove@...ass/bdi/9:0
UEVENT[1228867146.249409] remove@...ock/md0

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