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From: Thomas Backlund <tmb@mandriva.org>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.33: Problem continues: WARNING: at arch/x86/kernel/hpet.c:404 hpet_next_event+0x70/0x80
Date: Thu, 25 Feb 2010 16:03:27 +0200	[thread overview]
Message-ID: <4B86832F.70706@mandriva.org> (raw)
In-Reply-To: <alpine.DEB.2.00.1002241835120.4716@p34.internal.lan>

Justin Piszcz skrev 25.2.2010 01:37:
> Hello,
>
> Again, on the Intel DP55KG board:
>
> # uname -a
> Linux host 2.6.33 #1 SMP Wed Feb 24 18:31:00 EST 2010 x86_64 GNU/Linux
>
> [ 1.237600] ------------[ cut here ]------------
> [ 1.237890] WARNING: at arch/x86/kernel/hpet.c:404
> hpet_next_event+0x70/0x80()
> [ 1.238221] Hardware name:
> [ 1.238504] hpet: compare register read back failed.
> [ 1.238793] Modules linked in:
> [ 1.239315] Pid: 0, comm: swapper Not tainted 2.6.33 #1
> [ 1.239605] Call Trace:
> [ 1.239886] <IRQ> [<ffffffff81056c13>] ? warn_slowpath_common+0x73/0xb0
> [ 1.240409] [<ffffffff81079608>] ? tick_dev_program_event+0x38/0xc0
> [ 1.240699] [<ffffffff81056cb0>] ? warn_slowpath_fmt+0x40/0x50
> [ 1.240992] [<ffffffff81079608>] ? tick_dev_program_event+0x38/0xc0
> [ 1.241281] [<ffffffff81041ad0>] ? hpet_next_event+0x70/0x80
> [ 1.241573] [<ffffffff81079608>] ? tick_dev_program_event+0x38/0xc0
> [ 1.241859] [<ffffffff81078e32>] ? tick_handle_oneshot_broadcast+0xe2/0x100
> [ 1.246533] [<ffffffff8102a67a>] ? timer_interrupt+0x1a/0x30
> [ 1.246826] [<ffffffff81085499>] ? handle_IRQ_event+0x39/0xd0
> [ 1.247118] [<ffffffff81087368>] ? handle_edge_irq+0xb8/0x160
> [ 1.247407] [<ffffffff81029f55>] ? handle_irq+0x15/0x20
> [ 1.247689] [<ffffffff810294a2>] ? do_IRQ+0x62/0xe0
> [ 1.247976] [<ffffffff8146be53>] ? ret_from_intr+0x0/0xa
> [ 1.248262] <EOI> [<ffffffff8102f277>] ? mwait_idle+0x57/0x80
> [ 1.248796] [<ffffffff8102645c>] ? cpu_idle+0x5c/0xb0
> [ 1.249080] ---[ end trace db7f668fb6fef4e1 ]---
>
> Is this something Intel has to fix or is it a bug in the kernel?
>

Here is a suggested fix:

http://marc.info/?l=linux-kernel&m=126531123524059&w=2

--
Thomas

  reply	other threads:[~2010-02-25 14:07 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-24 23:37 2.6.33: Problem continues: WARNING: at arch/x86/kernel/hpet.c:404 hpet_next_event+0x70/0x80 Justin Piszcz
2010-02-25 14:03 ` Thomas Backlund [this message]
2010-02-25 14:22   ` Justin Piszcz
2010-02-25 18:53 ` Pallipadi, Venkatesh
2010-02-25 20:38   ` Thomas Gleixner
2010-04-01 22:58   ` [tip:x86/urgent] x86, hpet: Erratum workaround for read after write of HPET comparator tip-bot for Pallipadi, Venkatesh
2010-04-29  1:36   ` [tip:x86/timers] x86, hpet: Restrict read back to affected ATI chipsets tip-bot for Thomas Gleixner

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