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Subject: Re: [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U0
From: Daniel Walker <dwalker@mvista.com>
Reply-To: dwalker@mvista.com
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org, Lee Revell <rlrevell@joe-job.com>,
       Rui Nuno Capela <rncbc@rncbc.org>, Mark_H_Johnson@Raytheon.com,
       "K.R. Foley" <kr@cybsft.com>, Bill Huey <bhuey@lnxw.com>,
       Andrew Morton <akpm@osdl.org>
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References: <OF29AF5CB7.227D041F-ON86256F2A.0062D210@raytheon.com>
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I'm not sure about this one ..


------------[ cut here ]------------
kernel BUG at fs/buffer.c:1360!
invalid operand: 0000 [#1]
PREEMPT SMP
Modules linked in:
CPU:    0
EIP:    0060:[<c01619c1>]    Not tainted VLI
EFLAGS: 00010002   (2.6.9-rc4-mm1-VP-U1)
EIP is at __find_get_block+0xe1/0x100
eax: 00000001   ebx: cfd30c14   ecx: cffdc600   edx: 00000000
esi: 0005709b   edi: 00000000   ebp: cfd30b70   esp: cfd30b54
ds: 007b   es: 007b   ss: 0068   preempt: 00000001
Process kjournald (pid: 786, threadinfo=cfd30000 task=cfd26040)
Stack: 00000002 00000000 0005709b 00000000 cfd30c14 0005709b 00000000
cfd30b94
       c01619fe cffeab80 0005709b 00000000 00001000 cfd30c14 00000002
cfd30c44
       cfd30bac c0161a99 cffeab80 0005709b 00000000 00001000 cfd30bd4
c019aff0
Call Trace:
 [<c01619fe>] __getblk+0x1e/0x60
 [<c0161a99>] __bread+0x19/0x40
 [<c019aff0>] ext3_get_branch+0x70/0x100
 [<c019b61a>] ext3_get_block_handle+0x7a/0x2e0
 [<c026b1ee>] as_choose_req+0xe/0x1e0
 [<c026bc5f>] as_update_arq+0x1f/0x60
 [<c019b8c3>] ext3_get_block+0x43/0x80
 [<c0163735>] generic_block_bmap+0x35/0x40
 [<c0134c73>] __mcount+0x13/0x20
 [<c019c26d>] ext3_bmap+0xd/0xa0
 [<c01797c5>] bmap+0x45/0x60
 [<c019c2dc>] ext3_bmap+0x7c/0xa0
 [<c019b880>] ext3_get_block+0x0/0x80
 [<c01797c5>] bmap+0x45/0x60
 [<c01af8c2>] journal_bmap+0x42/0xa0
 [<c0134c73>] __mcount+0x13/0x20
 [<c0134249>] _mutex_unlock+0x9/0x60
 [<c01af827>] journal_next_log_block+0x47/0xa0
 [<c0113d30>] mcount+0x14/0x18
 [<c01af832>] journal_next_log_block+0x52/0xa0
 [<c01af939>] journal_get_descriptor_buffer+0x19/0xc0
 [<c01ac4ec>] journal_commit_transaction+0xf6c/0x13e0
 [<c01aedee>] kjournald+0xce/0x260
 [<c013555c>] sub_preempt_count+0x7c/0xa0
 [<c0133d00>] autoremove_wake_function+0x0/0x60
 [<c03b2a33>] _spin_unlock_irq+0x13/0x40
 [<c0133d00>] autoremove_wake_function+0x0/0x60
 [<c0119459>] schedule_tail+0x19/0x60
 [<c01aece0>] commit_timeout+0x0/0x20
 [<c01aed20>] kjournald+0x0/0x260
 [<c0103339>] kernel_thread_helper+0x5/0xc
Code: 45 14 39 43 10 75 a0 85 ff 74 17 8b 45 e4 89 f9 8d 14 b8 8b 42 fc
89 02 83 ea 04
                                                                                      

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