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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>

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> 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, youshould also replace the EIP in the new crash report on the addr2linecommand line, so in general: addr2line -e vmlinux -f -i <EIP here>.
(I don't think it really makes sense for the kernel to crash inkmem_cache_alloc() this early in the boot process, so I'm guessing youhave a different EIP.)
(Also don't rebuild a bad kernel just to try this out again, but ifyou 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 whilethe programmer was not looking is intellectually dishonest as itdisguises that the error is the programmer's own creation."	-- E. W. Dijkstra, EWD1036ÿôèº{.nÇ+‰·Ÿ®‰­†+%ŠËÿ±éݶ\x17¥Šwÿº{.nÇ+‰·¥Š{±þG«éÿŠ{ayº\x1dʇڙë,j\a­¢f£¢·hšïêÿ‘êçz_è®\x03(­éšŽŠÝ¢j"ú\x1a¶^[m§ÿÿ¾\a«þG«éÿ¢¸?™¨è­Ú&£ø§~á¶iO•æ¬z·švØ^\x14\x04\x1a¶^[m§ÿÿÃ\fÿ¶ìÿ¢¸?–I¥

  reply	other threads:[~2008-07-11 15:00 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-11 11:12 Török Edwin
2008-07-11 13:36 ` Vegard Nossum
2008-07-12 15:03 ` 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
2008-07-15  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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