From: "Denys Fedoryshchenko" <denys@visp.net.lb>
To: Jarek Poplawski <jarkao2@gmail.com>
Cc: netdev@vger.kernel.org
Subject: Re: RESEND, HTB(?) softlockup, vanilla 2.6.24
Date: Sat, 16 Feb 2008 12:25:31 +0200 [thread overview]
Message-ID: <20080216102502.M41110@visp.net.lb> (raw)
In-Reply-To: <47B69824.4030405@gmail.com>
Thanks, i will try it.
You think lockdep can be buggy?
On Sat, 16 Feb 2008 09:00:36 +0100, Jarek Poplawski wrote
> Denys Fedoryshchenko wrote, On 02/13/2008 09:13 AM:
>
> > It is very difficult to reproduce, happened after running about 1month.
No
> > changes done in classes at time of crash.
> >
> > Kernel 2.6.24 vanilla
>
> Hi,
>
> I could be wrong, but IMHO this looks like stack was overridden here,
> so my proposal is to try this:
>
> CONFIG_DEBUG_STACKOVERFLOW=y
>
> But, if you're not very interested in reproducing this, you could
> also try to turn off some other debugging, especially lockdep.
>
> Regards,
> Jarek P.
>
> ....
>
> > Feb 10 15:53:22 SHAPER [ 8271.778915] BUG: NMI Watchdog detected LOCKUP
> > Feb 10 15:53:22 SHAPER on CPU1, eip c01f0e5d, registers:
>
> ....
>
> > Feb 10 15:53:22 SHAPER [ 8271.779307] Pid: 0, comm: swapper Not tainted
> > (2.6.24-build-0021 #26)
> > Feb 10 15:53:22 SHAPER [ 8271.779327] EIP: 0060:[<c01f0e5d>] EFLAGS:
00000082
> > CPU: 1
> > Feb 10 15:53:22 SHAPER [ 8271.779349] EIP is at __rb_rotate_right+0x5/0x50
> > Feb 10 15:53:22 SHAPER [ 8271.779366] EAX: f76494a4 EBX: f76494a4 ECX:
> > f76494a4 EDX: c1ff5f80
> > Feb 10 15:53:22 SHAPER [ 8271.779386] ESI: f76494a4 EDI: c1ff5f80 EBP:
> > 00000000 ESP: f7c29c70
> > Feb 10 15:53:22 SHAPER [ 8271.779406] DS: 007b ES: 007b FS: 00d8 GS:
0000
> > SS: 0068
> > Feb 10 15:53:22 SHAPER [ 8271.779425] Process swapper (pid: 0,
ti=f7c28000
> > task=f7c20a60 task.ti=f7c28000)
> > Feb 10 15:53:22 SHAPER
> > Feb 10 15:53:22 SHAPER [ 8271.779446] Stack:
> > Feb 10 15:53:22 SHAPER f76494a4
> > Feb 10 15:53:22 SHAPER f76494a4
> > Feb 10 15:53:22 SHAPER f76494a4
> > Feb 10 15:53:22 SHAPER c01f0ef4
> > Feb 10 15:53:22 SHAPER c1ff5f80
> > Feb 10 15:53:22 SHAPER f76494a4
> > Feb 10 15:53:22 SHAPER f76494a8
> > Feb 10 15:53:22 SHAPER c1ff5f78
> > Feb 10 15:53:22 SHAPER
> > Feb 10 15:53:22 SHAPER [ 8271.779493]
> > Feb 10 15:53:22 SHAPER [ 8271.779307] Pid: 0, comm: swapper Not tainted
> > (2.6.24-build-0021 #26)
> > Feb 10 15:53:22 SHAPER [ 8271.779327] EIP: 0060:[<c01f0e5d>] EFLAGS:
00000082
> > CPU: 1
> > Feb 10 15:53:22 SHAPER [ 8271.779349] EIP is at __rb_rotate_right+0x5/0x50
> > Feb 10 15:53:22 SHAPER [ 8271.779366] EAX: f76494a4 EBX: f76494a4 ECX:
> > f76494a4 EDX: c1ff5f80
> > Feb 10 15:53:22 SHAPER [ 8271.779386] ESI: f76494a4 EDI: c1ff5f80 EBP:
> > 00000000 ESP: f7c29c70
> > Feb 10 15:53:22 SHAPER [ 8271.779406] DS: 007b ES: 007b FS: 00d8 GS:
0000
> > SS: 0068
> > Feb 10 15:53:22 SHAPER [ 8271.779425] Process swapper (pid: 0,
ti=f7c28000
> > task=f7c20a60 task.ti=f7c28000)
> > Feb 10 15:53:22 SHAPER
> > Feb 10 15:53:22 SHAPER [ 8271.779446] Stack:
> > Feb 10 15:53:22 SHAPER f76494a4
> > Feb 10 15:53:22 SHAPER f76494a4
> > Feb 10 15:53:22 SHAPER f76494a4
>
> ....
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Denys Fedoryshchenko
Technical Manager
Virtual ISP S.A.L.
next prev parent reply other threads:[~2008-02-16 10:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-13 8:13 RESEND, HTB(?) softlockup, vanilla 2.6.24 Denys Fedoryshchenko
2008-02-13 8:43 ` Jarek Poplawski
2008-02-16 8:00 ` Jarek Poplawski
2008-02-16 10:25 ` Denys Fedoryshchenko [this message]
2008-02-16 20:45 ` Jarek Poplawski
2008-02-17 0:03 ` Denys Fedoryshchenko
2008-02-17 9:11 ` Jarek Poplawski
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=20080216102502.M41110@visp.net.lb \
--to=denys@visp.net.lb \
--cc=jarkao2@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).