linux-kernel - Re: [2.6.24-mm1] TCP/IPv6 connect() oopses at twothirdsMD4Transform()

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Message-Id: <20080204173652.0fbe8885.akpm@linux-foundation.org>
Date:	Mon, 4 Feb 2008 17:36:52 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Matt Mackall <mpm@...enic.com>, "Theodore Ts'o" <tytso@....edu>
Subject: Re: [2.6.24-mm1] TCP/IPv6 connect() oopses at
 twothirdsMD4Transform()

On Tue, 05 Feb 2008 10:28:43 +0900 Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp> wrote:

> Hello.
> 
> Kernel config is at http://I-love.SAKURA.ne.jp/tmp/config-2.6.24-mm1
> 
> 2.6.24 works fine.

Thanks for testing and reporting.  It really helps.

> Regards.
> ----------
> BUG: unable to handle kernel paging request at 25476bec
> IP: [<c0211c28>] twothirdsMD4Transform+0x78/0x37c
> *pde = 00000000 
> Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
> last sysfs file: /sys/devices/pci0000:00/0000:00:10.0/host0/target0:0:1/0:0:1:0/type
> Modules linked in: nfsd lockd sunrpc exportfs pcnet32
> 
> Pid: 2148, comm: a.out Not tainted (2.6.24-mm1 #1)
> EIP: 0060:[<c0211c28>] EFLAGS: 00010286 CPU: 0
> EIP is at twothirdsMD4Transform+0x78/0x37c
> EAX: 00084000 EBX: 08000000 ECX: 80000000 EDX: db45ddec
> ESI: 00000000 EDI: 52806380 EBP: db45dddc ESP: db45ddc8
>  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
> Process a.out (pid: 2148, ti=db45d000 task=deaf9250 task.ti=db45d000)
> Stack: 80000000 def6ef9c 00006380 c0759d60 db45de1c db45de28 c0211fd2 00000040 
>        c0759d40 00000000 00000000 00000000 01000000 52806380 1f2e00ba fffa249f 
>        5a696b37 8dbe1970 cf7579d0 3b0cc350 a54b10a8 def6e9a0 00000000 def6ef8c 
> Call Trace:
>  [<c0211fd2>] ? secure_tcpv6_sequence_number+0x58/0x7a
>  [<c0322247>] ? tcp_v6_connect+0x46d/0x4e3
>  [<c02ade07>] ? lock_sock_nested+0x56/0x5e
>  [<c02ecbae>] ? inet_stream_connect+0x1c/0x163
>  [<c02ecc24>] ? inet_stream_connect+0x92/0x163
>  [<c02ab14b>] ? sys_connect+0x72/0x98
>  [<c013b945>] ? lock_release_holdtime+0x4e/0x54
>  [<c0115250>] ? do_page_fault+0x1c5/0x3fc
>  [<c013e858>] ? __lock_release+0x4b/0x51
>  [<c0115250>] ? do_page_fault+0x1c5/0x3fc
>  [<c02ab9f5>] ? sys_socketcall+0x6f/0x15e
>  [<c0103ae7>] ? restore_nocheck+0x12/0x15
>  [<c0103a86>] ? syscall_call+0x7/0xb
>  =======================
> Code: 31 c1 03 0c ba 8b 7a 0c 01 ce 8b 4d ec c1 c6 0b 31 d9 21 f1 31 d9 03 0c ba 8b 7a 10 01 c8 8b 4d ec c1 c0 13 31 f1 21 c1 33 4d ec <03> 0c ba 8b 7a 14 01 cb 89 c1 c1 c3 03 31 f1 21 d9 31 f1 03 0c 
> EIP: [<c0211c28>] twothirdsMD4Transform+0x78/0x37c SS:ESP 0068:db45ddc8
> ---[ end trace 160518059a282c77 ]---

err, Matt?
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