linux-kernel - Re: [PATCH 0/2] i386: Fix two more NMI watchdog bugs

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Message-Id: <200706090028.19703.ak@suse.de>
Date:	Sat, 9 Jun 2007 00:28:18 +0200
From:	Andi Kleen <ak@...e.de>
To:	"Udo A. Steinberg" <us15@...inf.tu-dresden.de>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Bj?rn Steinbrink <B.Steinbrink@....de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] i386: Fix two more NMI watchdog bugs


> None of the patches posted by Björn fix the kernel BUG at
> arch/i386/kernel/cpu/perfctr-watchdog.c:126! that occurs when doing
> echo 0 > /proc/sys/kernel/nmi_watchdog
>
> Call Trace:
>  [<c010c429>] single_msr_unreserve+0xd/0x1a
>  [<c010c668>] disable_lapic_nmi_watchdog+0x27/0x35
>  [<c0110ac6>] proc_nmi_enabled+0xa0/0xbd
>  [<c018550c>] proc_sys_write+0x6f/0x8c
>  [<c018549d>] proc_sys_write+0x0/0x8c
>  [<c0156e5b>] vfs_write+0x8a/0x10c
>  [<c0157317>] sys_write+0x41/0x67
>  [<c0103c30>] syscall_call+0x7/0xb
>
> Andi, did you have a patch for that?

ftp://ftp.firstfloor.org/pub/ak/x86_64/quilt/patches/disable-watchdog

-Andi
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