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Message-ID: <4742980A.60407@t-online.de>
Date: Tue, 20 Nov 2007 09:17:14 +0100
From: Harald Dunkel <harald.dunkel@t-online.de>
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To: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
CC: Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.23.8, ondemand scaling governor: "BUG: soft lockup detected
 on CPU#0!"
References: <474227F9.8050909@t-online.de> <924EFEDD5F540B4284297C4DC59F3DEE251A40@orsmsx423.amr.corp.intel.com>
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Pallipadi, Venkatesh wrote:
> 
> Can you try switching to powersave governor (which should always run CPU
> at 400MHz) and see whether you see similar error?
> 

Yes, if I move from performance to powersave, then I see a similar
error:

Nov 20 09:06:48 bugs kernel: BUG: soft lockup detected on CPU#0!
Nov 20 09:06:48 bugs kernel:  [<c013cf8d>] softlockup_tick+0x91/0xa6
Nov 20 09:06:48 bugs kernel:  [<c012269c>] update_process_times+0x3a/0x5d
Nov 20 09:06:48 bugs kernel:  [<c0131219>] tick_sched_timer+0x115/0x164
Nov 20 09:06:48 bugs kernel:  [<c012d311>] hrtimer_interrupt+0x102/0x191
Nov 20 09:06:48 bugs kernel:  [<c0106cd6>] timer_interrupt+0x2e/0x34
Nov 20 09:06:48 bugs kernel:  [<c013d1f6>] handle_IRQ_event+0x1a/0x3f
Nov 20 09:06:48 bugs kernel:  [<c013e4e1>] handle_level_irq+0xa8/0xb7
Nov 20 09:06:48 bugs kernel:  [<c0106367>] do_IRQ+0x53/0x6c
Nov 20 09:06:48 bugs kernel:  [<c0104853>] common_interrupt+0x23/0x28
Nov 20 09:06:48 bugs kernel:  =======================


Please mail. Regards

Harri

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