linux-kernel - Re: Was: boot failure, "DWARF2 unwinder stuck at 0xc0100199"

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Message-Id: <44F43C67.76E4.0078.0@novell.com>
Date:	Tue, 29 Aug 2006 12:08:55 +0100
From:	"Jan Beulich" <jbeulich@...ell.com>
To:	<petkov@...h.uni-muenster.de>
Cc:	"J. Bruce Fields" <bfields@...ldses.org>, <akpm@...l.org>,
	"Andi Kleen" <ak@...e.de>, <linux-kernel@...r.kernel.org>
Subject: Re: Was: boot failure, "DWARF2 unwinder stuck at 0xc0100199"

>>> Borislav Petkov <bbpetkov@...oo.de> 29.08.06 13:01 >>>
>On Tue, Aug 29, 2006 at 11:57:37AM +0200, Jan Beulich wrote:
>> >>> Borislav Petkov <bbpetkov@...oo.de> 29.08.06 10:53 >>>
>> >Hi,
>> >    I just read that unwinder thread and I think I have yet another case of
>> >    unwinder backtrace that comes up together with the recursive deadlock
>> >    protection backtrace and this happens with 18-rc5 so I thought I should
>> >    report it before .18 is released:
>> >...
>> >Aug 29 10:21:22 zmei kernel: [  383.485261]  [<c0105393>] do_IRQ+0xc3/0xd0
>> >Aug 29 10:21:22 zmei kernel: [  383.489393]  [<c0103521>] common_interrupt+0x25/0x2c
>> >Aug 29 10:21:22 zmei kernel: [  383.494387] DWARF2 unwinder stuck at common_interrupt+0x25/0x2c
>> >Aug 29 10:21:22 zmei kernel: [  383.500304] Leftover inexact backtrace:
>> ></snip>
>> 
>> Unfortunately this leaves unclear whether there was anything reported in
>> the leftover portion.
>> And in all cases, a sufficiently long raw stack trace is needed to analyse this.
>> Ideally a matching System.map would also be attached.
>> 
>> Jan
>
>Actually, that's all there was in dmesg. System.map is at
>http://tim.dnsalias.org/System.map-2.6.18-rc5.

Without a hex dump of stack contents there's very little I can do.

Jan
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