From: "Vegard Nossum" <vegard.nossum@gmail•com>
To: "Török Edwin" <edwintorok@gmail•com>
Cc: Ingo Molnar <mingo@elte•hu>, Takashi Iwai <tiwai@suse•de>,
linux-next@vger•kernel.org,
Linux Kernel <linux-kernel@vger•kernel.org>
Subject: Re: today's linux-next fails to boot
Date: Fri, 11 Jul 2008 17:00:42 +0200 [thread overview]
Message-ID: <19f34abd0807110800o5b283f00n4be7449ed3b06e5a@mail.gmail.com> (raw)
In-Reply-To: <19f34abd0807110754n1a095671ua9132471b6a81540@mail.gmail.com>
> On Fri, Jul 11, 2008 at 4:48 PM, Török Edwin <edwintorok@gmail•com> wrote:
>>> One really simple way of getting some more info out of this is to take
>>> the EIP value (here c0181ca0) and run it through addr2line:
>>>
>>> $ addr2line -e vmlinux -i c0181ca0
>>
>> Thanks for the hint, I rebuilt a failing kernel, and this is what
>> addr2line says:
>>
>> $ addr2line -e vmlinux -i c0181ca0
>>
>> ??:0
>> $ addr2line -e vmlinux -f c0181ca0
>> kmem_cache_alloc
>> ??:0
BTW, did the new kernel fail in exactly the same place? If not, you
should also replace the EIP in the new crash report on the addr2line
command line, so in general: addr2line -e vmlinux -f -i <EIP here>.
(I don't think it really makes sense for the kernel to crash in
kmem_cache_alloc() this early in the boot process, so I'm guessing you
have a different EIP.)
(Also don't rebuild a bad kernel just to try this out again, but if
you happen to run across another bad one for example during bisection,
you can try it then.)
Vegard
--
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
-- E. W. Dijkstra, EWD1036
next prev parent reply other threads:[~2008-07-11 15:00 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-11 11:12 today's linux-next fails to boot Török Edwin
2008-07-11 13:03 ` Takashi Iwai
2008-07-11 13:13 ` Török Edwin
2008-07-11 13:59 ` Ingo Molnar
2008-07-11 14:48 ` Török Edwin
2008-07-11 14:53 ` Ingo Molnar
2008-07-11 15:10 ` Rafael J. Wysocki
2008-07-11 19:07 ` Ingo Molnar
2008-07-11 21:06 ` Rafael J. Wysocki
2008-07-12 0:50 ` Rafael J. Wysocki
2008-07-12 4:47 ` Ingo Molnar
2008-07-11 14:54 ` Vegard Nossum
2008-07-11 15:00 ` Vegard Nossum [this message]
2008-07-11 15:27 ` Török Edwin
2008-07-16 21:11 ` Thomas Meyer
2008-07-16 21:57 ` Frédéric Weisbecker
2008-07-11 13:04 ` Takashi Iwai
2008-07-11 13:36 ` Vegard Nossum
2008-07-15 2:11 ` Frédéric Weisbecker
2008-07-15 11:06 ` Takashi Iwai
2008-07-15 11:15 ` Bernhard Walle
2008-07-15 11:17 ` Bernhard Walle
2008-07-15 11:53 ` Takashi Iwai
2008-07-15 12:02 ` Bernhard Walle
[not found] ` <c62985530807150800l4f34a6a3m22d58d66316c1e09@mail.gmail.com>
2008-07-15 15:14 ` Bernhard Walle
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