linux-kernel - Re: [bug] SLUB + mm/slab.c boot crash in -rc9

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Message-ID: <20080415212430.GA5467@elte.hu>
Date:	Tue, 15 Apr 2008 23:24:30 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Christoph Lameter <clameter@....com>,
	linux-kernel@...r.kernel.org, Mel Gorman <mel@....ul.ie>,
	Nick Piggin <npiggin@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Yinghai.Lu@....com,
	apw@...dowen.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [bug] SLUB + mm/slab.c boot crash in -rc9


* Ingo Molnar <mingo@...e.hu> wrote:

> ok, will try that now.

btw., as i progress with that bisection effort, i triggered new crash 
patterns, which lappen later during bootup:

[    0.775886] initcall 0xc0b00559 ran for 0 msecs: ksysfs_init+0x0/0x96()
[    0.777885] Calling initcall 0xc0b01eb8: filelock_init+0x0/0x27()
[    0.780137] BUG: unable to handle kernel NULL pointer dereference at 00000001
[    0.782883] IP: [<c0293981>] strlen+0xb/0x15
[    0.784884] *pde = 00000000 
[    0.786889] Oops: 0000 [#1] SMP 
[    0.787880] 
[    0.787880] Pid: 1, comm: swapper Not tainted (2.6.24-05281-g6232665 #3)
[    0.787880] EIP: 0060:[<c0293981>] EFLAGS: 00010286 CPU: 0
[    0.787880] EIP is at strlen+0xb/0x15
[    0.787880] EAX: 00000000 EBX: 00040000 ECX: ffffffff EDX: 00040000
[    0.787880] ESI: c0915320 EDI: 00000001 EBP: f7c23f08 ESP: f7c23f04
[    0.787880]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[    0.787880] Process swapper (pid: 1, ti=f7c22000 task=f7c20000 task.ti=f7c22000)
[    0.787880] Stack: f7c1f540 f7c23f18 c015b138 00000094 c016b45a f7c23f48 c015c92c c016b45a 
[    0.787880]        00000025 c0915320 f7c1f540 000000d0 f7c23f58 00000282 f7c1f540 00000000 
[    0.787880]        00000000 f7c23f84 c015cbc8 00000060 00000000 00040000 c016b45a c0133e81 
[    0.787880] Call Trace:
[    0.787880]  [<c015b138>] ? kmem_cache_flags+0x3d/0x5b
[    0.787880]  [<c016b45a>] ? init_once+0x0/0xc
[    0.787880]  [<c015c92c>] ? kmem_cache_open+0x64/0x128
[    0.787880]  [<c016b45a>] ? init_once+0x0/0xc
[    0.787880]  [<c015cbc8>] ? kmem_cache_create+0x14e/0x1d6
[    0.787880]  [<c016b45a>] ? init_once+0x0/0xc
[    0.787880]  [<c0133e81>] ? ktime_get_ts+0x3b/0x3f
[    0.787880]  [<c0133e96>] ? ktime_get+0x11/0x2f
[    0.787880]  [<c0b01ed6>] ? filelock_init+0x1e/0x27
[    0.787880]  [<c016b45a>] ? init_once+0x0/0xc
[    0.787880]  [<c0af176d>] ? kernel_init+0x13f/0x298
[    0.787880]  [<c0103b46>] ? ret_from_fork+0x6/0x20
[    0.787880]  [<c0af162e>] ? kernel_init+0x0/0x298
[    0.787880]  [<c0af162e>] ? kernel_init+0x0/0x298
[    0.787880]  [<c0104ed7>] ? kernel_thread_helper+0x7/0x10
[    0.787880]  =======================
[    0.787880] Code: 5d c3 55 89 e5 56 89 c6 89 d0 88 c4 ac 38 e0 74 09 84 c0 75 f7 be 01 00 00 00 89 f0 48 5e 5d c3 55 89 e5 57 89 c7 31 c0 83 c9 ff <f2> ae f7 d1 49 89 c8 5f 5d c3 55 89 e5 57 89 c7 89 d0 31 d2 85 
[    0.787880] EIP: [<c0293981>] strlen+0xb/0x15 SS:ESP 0068:f7c23f04
[    0.787906] ---[ end trace ca143223eefdc828 ]---
[    0.788890] Kernel panic - not syncing: Attempted to kill init!
[    0.789899] Rebooting in 10 seconds..

	Ingo
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