From: Anant Nitya <kernel@prachanda.info>
To: linux-kernel@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [BUG] local_softirq_pending storm
Date: Sat, 19 May 2007 15:25:27 +0530 [thread overview]
Message-ID: <200705191525.28400.kernel@prachanda.hub> (raw)
In-Reply-To: <1179493277.12981.69.camel@chaos>
On Friday 18 May 2007 18:31:17 Thomas Gleixner wrote:
> On Thu, 2007-05-17 at 12:11 +0530, Anant Nitya wrote:
> > On Friday 11 May 2007 03:28:46 Thomas Gleixner wrote:
> > > Ok, that's consistent with earlier reports. The problem surfaces when
> > > one of the SMT-"cpus" goes idle. The problem goes away when you disable
> > > hyperthreading.
> >
> > Yes with HT disabled in BIOS there is no local_softirq_pending messages.
> > BTW why does this problem persist only with X ?
>
> No idea. I uploaded a debug patch against 2.6.22-rc1 to
>
> http://www.tglx.de/private/tglx/2.6.22-rc1-hrt-debug.patch
>
> Can you give it a try and report the output ?
Hi
Here it goes
[ 159.646196] NOHZ softirq pending 22 on CPU 0
[ 159.646207] .... task state: 1 00000000
[ 159.646217] .... last caller: __tasklet_schedule
[ 159.646997] NOHZ softirq pending 22 on CPU 0
[ 159.647006] .... task state: 1 00000000
[ 159.647013] .... last caller: __tasklet_schedule
[ 159.647398] NOHZ softirq pending 22 on CPU 0
[ 159.647405] .... task state: 1 00000000
[ 159.647412] .... last caller: __tasklet_schedule
[ 159.647768] NOHZ softirq pending 22 on CPU 0
[ 159.647775] .... task state: 1 00000000
[ 159.647781] .... last caller: __tasklet_schedule
[ 166.285664] NOHZ softirq pending 22 on CPU 0
[ 166.285675] .... task state: 1 00000000
[ 166.285687] .... last caller: raise_softirq
[ 166.286321] NOHZ softirq pending 22 on CPU 0
[ 166.286329] .... task state: 1 00000000
[ 166.286337] .... last caller: raise_softirq
[ 166.286715] NOHZ softirq pending 22 on CPU 0
[ 166.286722] .... task state: 1 00000000
[ 166.286729] .... last caller: raise_softirq
[ 166.287085] NOHZ softirq pending 22 on CPU 0
[ 166.287092] .... task state: 1 00000000
[ 166.287098] .... last caller: raise_softirq
[ 171.512134] NOHZ softirq pending 22 on CPU 0
[ 171.512144] .... task state: 1 00000000
[ 171.512154] .... last caller: __tasklet_schedule
[ 171.512712] NOHZ softirq pending 22 on CPU 0
[ 171.512720] .... task state: 1 00000000
[ 171.512727] .... last caller: __tasklet_schedule
Regards
Ananitya
next prev parent reply other threads:[~2007-05-19 9:56 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-09 14:12 [BUG] local_softirq_pending storm Anant Nitya
2007-05-09 16:31 ` Thomas Gleixner
2007-05-10 11:53 ` Anant Nitya
2007-05-10 21:58 ` Thomas Gleixner
2007-05-17 6:41 ` Anant Nitya
2007-05-18 13:01 ` Thomas Gleixner
2007-05-19 4:30 ` Anant Nitya
2007-05-19 9:55 ` Anant Nitya [this message]
2007-05-19 19:11 ` Thomas Gleixner
2007-05-19 21:23 ` Anant Nitya
2007-05-20 21:43 ` Thomas Gleixner
2007-05-21 6:22 ` Anant Nitya
2007-05-21 9:01 ` Thomas Gleixner
2007-05-21 10:02 ` Anant Nitya
2007-05-21 18:45 ` Anant Nitya
2007-05-22 19:03 ` Michal Piotrowski
2007-05-22 19:59 ` Michal Piotrowski
2007-05-22 20:10 ` Ingo Molnar
2007-05-22 20:23 ` Michal Piotrowski
2007-05-23 17:00 ` Chuck Ebbert
2007-05-23 18:38 ` Chuck Ebbert
2007-05-23 23:24 ` Anant Nitya
2007-05-24 7:45 ` Ingo Molnar
2007-05-20 10:18 ` Heiko Carstens
2007-05-20 13:52 ` Thomas Gleixner
2007-05-20 18:36 ` Heiko Carstens
[not found] ` <20070520191800.GA14225@osiris.ibm.com>
[not found] ` <1179689389.6570.1.camel@chaos>
[not found] ` <20070521200428.GA9855@osiris.ibm.com>
2007-05-23 20:54 ` Mikulas Patocka
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