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Date: Wed, 08 Nov 2006 16:15:57 +0100
From: Jiri Slaby <jirislaby@gmail.com>
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To: Marco Schwarz <marco.schwarz@gmx.net>
CC: linux-kernel@vger.kernel.org, trond.myklebust@fys.uio.no
Subject: Re: Kernel error messages
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Cc: trond.myklebust@fys.uio.no

Marco Schwarz wrote:
> Hi,
> 
> with a vanilla 2.6.18.2 Kernel I get the following messages when I run a process with high CPU/memory consumption:
> 
> Nov  8 15:08:24 linux kernel: BUG: unable to handle kernel paging request at virtual address 6e696c43
> Nov  8 15:08:24 linux kernel:  printing eip:
> Nov  8 15:08:12 linux last message repeated 146 times

Which message? (some kind of cut&paste mismatch?)

> Nov  8 15:08:24 linux kernel: c043d3d5
> Nov  8 15:08:24 linux kernel: *pde = 00000000
> Nov  8 15:08:24 linux kernel: Oops: 0000 [#1]
> Nov  8 15:08:24 linux kernel: SMP
> Nov  8 15:08:24 linux kernel: Modules linked in:
> Nov  8 15:08:24 linux kernel: CPU:    1
> Nov  8 15:08:24 linux kernel: EIP:    0060:[<c043d3d5>]    Not tainted VLI
> Nov  8 15:08:24 linux kernel: EFLAGS: 00010246   (2.6.18.2 #8)
> Nov  8 15:08:24 linux kernel: EIP is at rpcauth_refreshcred+0x15/0x50
> Nov  8 15:08:24 linux kernel: eax: df6df240   ebx: df6df240   ecx: 00000001   edx: 6e696c2f
> Nov  8 15:08:24 linux kernel: esi: df1b5000   edi: 00000000   ebp: df6df2a8   esp: d8ccfd00
> Nov  8 15:08:24 linux kernel: ds: 007b   es: 007b   ss: 0068
> Nov  8 15:08:24 linux kernel: Process ln (pid: 11343, ti=d8cce000 task=d5d5a030 task.ti=d8cce000)
> Nov  8 15:08:24 linux kernel: Stack: df6df240 00000000 c043bfcd df6df240 00000000 d8ccfd48 d8ccfd20 c0436ecd
> Nov  8 15:08:24 linux kernel:        00000000 00000000 df1e1410 df1b5000 d8ccfd58 00000006 c01ff735 dd24e7a4
> Nov  8 15:08:24 linux kernel:        df1e12f8 df1e12f0 c050ee20 d8ccfd68 00000006 df1b5000 00000017 d8ccfed8
> Nov  8 15:08:24 linux kernel: Call Trace:
> Nov  8 15:08:24 linux kernel:  [<c043bfcd>] __rpc_execute+0x4d/0x1f0
> Nov  8 15:08:24 linux kernel:  [<c0436ecd>] rpc_call_sync+0x8d/0xb0
> Nov  8 15:08:24 linux kernel:  [<c01ff735>] nfs_proc_symlink+0xd5/0x150
> Nov  8 15:08:24 linux kernel:  [<c01f8159>] nfs_symlink+0x89/0x190
> Nov  8 15:08:24 linux kernel:  [<c0175556>] d_alloc+0xf6/0x180
> Nov  8 15:08:24 linux kernel:  [<c0175b1d>] __d_lookup+0x8d/0x110
> Nov  8 15:08:24 linux kernel:  [<c0269e8b>] _atomic_dec_and_lock+0x2b/0x50
> Nov  8 15:08:24 linux kernel:  [<c01793e3>] mntput_no_expire+0x13/0x70
> Nov  8 15:08:24 linux kernel:  [<c016bbe0>] __link_path_walk+0x3f0/0xef0
> Nov  8 15:08:24 linux kernel:  [<c0175b1d>] __d_lookup+0x8d/0x110
> Nov  8 15:08:24 linux kernel:  [<c01f8841>] nfs_permission+0xb1/0x160
> Nov  8 15:08:24 linux kernel:  [<c01f8790>] nfs_permission+0x0/0x160
> Nov  8 15:08:24 linux kernel:  [<c016b23a>] permission+0xba/0xe0
> Nov  8 15:08:24 linux kernel:  [<c016bb83>] __link_path_walk+0x393/0xef0
> Nov  8 15:08:24 linux kernel:  [<c01793e3>] mntput_no_expire+0x13/0x70
> Nov  8 15:08:24 linux kernel:  [<c016c74b>] link_path_walk+0x6b/0xd0
> Nov  8 15:08:24 linux kernel:  [<c0175b1d>] __d_lookup+0x8d/0x110
> Nov  8 15:08:24 linux kernel:  [<c01f8790>] nfs_permission+0x0/0x160
> Nov  8 15:08:24 linux kernel:  [<c016b23a>] permission+0xba/0xe0
> Nov  8 15:08:24 linux kernel:  [<c016e511>] vfs_symlink+0x91/0x100
> Nov  8 15:08:24 linux kernel:  [<c016e5f7>] sys_symlinkat+0x77/0xc0
> Nov  8 15:08:24 linux kernel:  [<c016e651>] sys_symlink+0x11/0x20
> Nov  8 15:08:24 linux kernel:  [<c0102b4d>] sysenter_past_esp+0x56/0x79
> Nov  8 15:08:24 linux kernel: Code: e8 31 16 ce ff 83 c4 10 eb a2 8d b6 00 00 00 00 8d bf 00 00 00 00 56 53 8b 70 28 89 c3 f6 05 68 da 67 c0 10 75 16 8b 56 08 89 d8 <ff> 52 14 8
> 5 c0 78 04 5b 5e c3 90 89 43 18 5b 5e c3 56 8b 40 10
> Nov  8 15:08:24 linux kernel: EIP: [<c043d3d5>] rpcauth_refreshcred+0x15/0x50 SS:ESP 0068:d8ccfd00
> 
> Anyone knows what could be going wrong ?

regards,
-- 
http://www.fi.muni.cz/~xslaby/            Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8  22A0 32CC 55C3 39D4 7A7E
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