From: Ben Hutchings <ben@decadent.org.uk>
To: Martin Ferrari <martin.ferrari@gmail.com>, 577640@bugs.debian.org
Cc: netdev <netdev@vger.kernel.org>,
"Eric W. Biederman" <ebiederm@aristanetworks.com>,
Alexey Dobriyan <adobriyan@gmail.com>
Subject: Re: Bug#577640: linux-image-2.6.33-2-amd64: Kernel warnings in netns thread
Date: Sun, 18 Apr 2010 18:33:25 +0100 [thread overview]
Message-ID: <1271612005.3679.248.camel@localhost> (raw)
In-Reply-To: <20100413112017.8505.36380.reportbug@japot.localdomain>
[-- Attachment #1: Type: text/plain, Size: 3369 bytes --]
On Tue, 2010-04-13 at 13:20 +0200, Martin Ferrari wrote:
> Package: linux-2.6
> Version: 2.6.33-1~experimental.4
> Severity: normal
> Tags: experimental
>
> Firstly, please note that I'm running this inside a Qemu, but I
> imagine that it should not change things much.
>
> I installed 2.6.33 to try out the new improvements regarding network
> namespaces, and while creating and killing hundreds of them, I got
> many warnings from the kernel that might indicate a bug somewhere.
> Please see the log already included by reportbug.
I'm forwarding this to the upstream maintainers.
Ben.
[...]
> [ 6696.035331] ------------[ cut here ]------------
> [ 6696.035334] WARNING: at /build/mattems-linux-2.6_2.6.33-1~experimental.4-amd64-ieqSsa/linux-2.6-2.6.33-1~experimental.4/debian/build/source_amd64_none/kernel/sysctl.c:1894 unregister_sysctl_table+0xa6/0xd1()
> [ 6696.035336] Hardware name:
> [ 6696.035337] Modules linked in: veth loop parport_pc parport snd_pcm tpm_tis evdev snd_timer i2c_piix4 tpm tpm_bios button processor serio_raw i2c_core snd soundcore snd_page_alloc pcspkr psmouse ext3 jbd mbcache sg sr_mod cdrom sd_mod crc_t10dif ata_generic ata_piix libata floppy 8139cp thermal thermal_sys 8139too mii scsi_mod [last unloaded: veth]
> [ 6696.035354] Pid: 9, comm: netns Tainted: G W 2.6.33-2-amd64 #1
> [ 6696.035355] Call Trace:
> [ 6696.035357] [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
> [ 6696.035360] [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
> [ 6696.035362] [<ffffffff81046b81>] ? warn_slowpath_common+0x77/0xa3
> [ 6696.035364] [<ffffffff8104e303>] ? unregister_sysctl_table+0xa6/0xd1
> [ 6696.035367] [<ffffffff812b1205>] ? addrconf_ifdown+0x26f/0x2cc
> [ 6696.035369] [<ffffffff81247edc>] ? neigh_sysctl_unregister+0x1a/0x31
> [ 6696.035371] [<ffffffff812b1211>] ? addrconf_ifdown+0x27b/0x2cc
> [ 6696.035374] [<ffffffff812b2b0c>] ? addrconf_notify+0x714/0x7ea
> [ 6696.035376] [<ffffffff811eb2e7>] ? extract_entropy+0x6a/0x125
> [ 6696.035379] [<ffffffff81053aaf>] ? lock_timer_base+0x26/0x4b
> [ 6696.035382] [<ffffffff8123951c>] ? skb_dequeue+0x50/0x58
> [ 6696.035384] [<ffffffff812482c8>] ? pneigh_queue_purge+0x25/0x2f
> [ 6696.035386] [<ffffffff81249a91>] ? neigh_ifdown+0xba/0xc9
> [ 6696.035389] [<ffffffff81062f6d>] ? notifier_call_chain+0x29/0x4c
> [ 6696.035392] [<ffffffff81243662>] ? rollback_registered_many+0xed/0x19c
> [ 6696.035394] [<ffffffff8124371f>] ? unregister_netdevice_many+0xe/0x57
> [ 6696.035397] [<ffffffff812438a3>] ? default_device_exit_batch+0x92/0xa3
> [ 6696.035399] [<ffffffff8123e97a>] ? cleanup_net+0xfd/0x1af
> [ 6696.035402] [<ffffffff8105bd0d>] ? worker_thread+0x188/0x21d
> [ 6696.035404] [<ffffffff8123e87d>] ? cleanup_net+0x0/0x1af
> [ 6696.035406] [<ffffffff8105f2d2>] ? autoremove_wake_function+0x0/0x2e
> [ 6696.035409] [<ffffffff8105bb85>] ? worker_thread+0x0/0x21d
> [ 6696.035411] [<ffffffff8105ee99>] ? kthread+0x79/0x81
> [ 6696.035414] [<ffffffff810098e4>] ? kernel_thread_helper+0x4/0x10
> [ 6696.035416] [<ffffffff8105ee20>] ? kthread+0x0/0x81
> [ 6696.035418] [<ffffffff810098e0>] ? kernel_thread_helper+0x0/0x10
> [ 6696.035419] ---[ end trace ef7b93cb006e989e ]---
[...]
--
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 828 bytes --]
next parent reply other threads:[~2010-04-18 17:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20100413112017.8505.36380.reportbug@japot.localdomain>
2010-04-18 17:33 ` Ben Hutchings [this message]
2010-04-21 15:19 ` Bug#577640: linux-image-2.6.33-2-amd64: Kernel warnings in netns thread Martín Ferrari
2010-04-21 19:36 ` Eric W. Biederman
2010-04-22 0:14 ` Ben Hutchings
2010-04-22 2:38 ` Eric W. Biederman
2010-04-22 14:05 ` Martín Ferrari
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1271612005.3679.248.camel@localhost \
--to=ben@decadent.org.uk \
--cc=577640@bugs.debian.org \
--cc=adobriyan@gmail.com \
--cc=ebiederm@aristanetworks.com \
--cc=martin.ferrari@gmail.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.