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Re: Corruption of in-memory data detected.

To: Eric Sandeen <sandeen@xxxxxxx>
Subject: Re: Corruption of in-memory data detected.
From: Marc Schmitt <schmitt@xxxxxxxxxxx>
Date: Tue, 23 Oct 2001 16:54:32 +0200
Cc: linux-xfs@xxxxxxxxxxx, florin@xxxxxxx
References: <3BD4137A.8040406@xxxxxxxxxxx> <1003770847.13566.36.camel@xxxxxxxxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2) Gecko/20010726 Netscape6/6.1
Hi Eric,

Eric Sandeen wrote:


If you don't mind tinkering a bit, the first thing to do is enable kdb
and set a breakpoint, so we can see how we're getting to this point..


Here the console output:

Entering kdb (current=0xc039c000, pid 0) on processor 0 due to Keyboard Entry
[0]kdb> bp _xfs_force_shutdown
Instruction(i) BP #0 at 0xc01f7208 (_xfs_force_shutdown) is enabled globally adjust 1
[0]kdb> go
XFS mounting filesystem md(9,0)
Instruction(i) breakpoint #0 at 0xc01f7208 (adjusted)
0xc01f7208 _xfs_force_shutdown: int3

Entering kdb (current=0xd9f06000, pid 2459) on processor 0 due to Breakpoint @ 0xc01f7208
[0]kdb> bt
    EBP       EIP         Function(args)
0xd9f07c3c 0xc01f7208 _xfs_force_shutdown (0xdab55400, 0x8, 0xc02cadc3, 0x3fc) kernel .text 0xc0100000 0xc01f7208 0xc01f7338
           0xc01ec31e xfs_trans_cancel+0x46 (0xd9263980, 0xc)
kernel .text 0xc0100000 0xc01ec2d8 0xc01ec37c 0xd9f07cf0 0xc01f2d56 xfs_create+0x9ca (0xd9397d44, 0xd9282d7c, 0xd9f07e74, 0x0, 0x0) kernel .text 0xc0100000 0xc01f238c 0xc01f2dd0 0xd9f07ee4 0xc01fb02f linvfs_common_cr+0x123 (0xda00abc0, 0xd9282d20, 0x81ff, 0x1, 0x0) kernel .text 0xc0100000 0xc01faf0c 0xc01fb174
0xd9f07f00 0xc01fb18c linvfs_create+0x18 (0xda00abc0, 0xd9282d20, 0x81ff)
kernel .text 0xc0100000 0xc01fb174 0xc01fb190 0xd9f07f28 0xc0140cef vfs_create+0x127 (0xda00abc0, 0xd9282d20, 0x1ff, 0x1ff) kernel .text 0xc0100000 0xc0140bc8 0xc0140d40
0xd9f07f60 0xc0140eac open_namei+0x16c (0xdec13000, 0xc3, 0x1ff, 0xd9f07f84)
kernel .text 0xc0100000 0xc0140d40 0xc01413dc
0xd9f07fa0 0xc0135fb2 filp_open+0x3a (0xdec13000, 0xc2, 0x1ff)
kernel .text 0xc0100000 0xc0135f78 0xc0135fd4 0xd9f07fbc 0xc0136302 sys_open+0x36 (0xbffff718, 0xc2, 0x1ff, 0x40016b4c, 0xbffff89c) kernel .text 0xc0100000 0xc01362cc 0xc013639c
           0xc01070cb system_call+0x33
kernel .text 0xc0100000 0xc0107098 0xc01070d0
[0]kdb>


HTH.

Regards,
        Marc



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