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Date: Mon, 10 Aug 2009 21:44:13 +0200
From: Andi Kleen <andi@firstfloor.org>
To: Johannes Stezenbach <js@sig21.net>
Cc: Ingo Molnar <mingo@elte.hu>, Andi Kleen <andi@firstfloor.org>,
       x86@kernel.org, linux-kernel@vger.kernel.org,
       "Rafael J. Wysocki" <rjw@sisk.pl>, robert.richter@amd.com
Subject: Re: 2.6.31-rc5 regression: x86 MCE malfunction on Thinkpad T42p
Message-ID: <20090810194413.GE6838@basil.fritz.box>
References: <20090807170942.GB9177@sig21.net> <87k51cgdt8.fsf@basil.nowhere.org> <20090810122731.GA5863@sig21.net> <20090810123228.GD6838@basil.fritz.box> <20090810125651.GB6082@sig21.net> <20090810132923.GA4418@elte.hu> <20090810192658.GA15513@sig21.net>
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> But in demsg I got this:

AFAIK that's already fixed. cc Robert to confirm. Not sure if the fix  made it into 2.6.31 though?

-Andi

> 
> Delta way too big! 18446744022868427516 ts=18446744022868427516 write stamp = 0
> ------------[ cut here ]------------
> WARNING: at kernel/trace/ring_buffer.c:1392 rb_reserve_next_event+0x150/0x309()
> Hardware name: 2373Y4M
> Modules linked in: ath5k mac80211 ath cfg80211 oprofile bnep sco rfcomm l2cap bluetooth ehci_hcd uhci_hc
> Pid: 13478, comm: opcontrol Not tainted 2.6.31-rc5 #5
> Call Trace:
>  [<c10248dd>] warn_slowpath_common+0x60/0x90
>  [<c102491a>] warn_slowpath_null+0xd/0x10
>  [<c1054129>] rb_reserve_next_event+0x150/0x309
>  [<c1068c06>] ? get_page_from_freelist+0x86/0x35a
>  [<c10544f7>] ring_buffer_lock_reserve+0xe7/0x135
>  [<f88622c0>] op_cpu_buffer_write_reserve+0x1a/0x4b [oprofile]
>  [<f886239d>] op_add_code+0x57/0x98 [oprofile]
>  [<c1068c06>] ? get_page_from_freelist+0x86/0x35a
>  [<c1367c08>] ? page_fault+0x0/0x8
>  [<f8862409>] log_sample+0x2b/0x6c [oprofile]
>  [<c1064c76>] ? filemap_fault+0x74/0x32b
>  [<f886249c>] oprofile_add_sample+0x3b/0x6b [oprofile]
>  [<f88641d8>] ppro_check_ctrs+0x66/0xdb [oprofile]
>  [<c1074bde>] ? __do_fault+0x303/0x32f
>  [<f8863907>] profile_exceptions_notify+0x1f/0x26 [oprofile]
>  [<c103953b>] notifier_call_chain+0x2b/0x55
>  [<c10398e3>] __atomic_notifier_call_chain+0x1a/0x3a
>  [<c103990f>] atomic_notifier_call_chain+0xc/0xe
>  [<c103993e>] notify_die+0x2d/0x2f
>  [<c1003c54>] do_nmi+0x63/0x222
>  [<c1367d1d>] nmi_stack_correct+0x28/0x2d
>  [<c1367c08>] ? page_fault+0x0/0x8
> ---[ end trace d174f39c63495e01 ]---
> 
> 
> Thanks
> Johannes
> 

-- 
ak@linux.intel.com -- Speaking for myself only.