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Subject2.6.10-rc2-mm4 panic while running LTP tests
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Hi Andrew,

I get following panic while running LTP io tests.

I am going to try 2.6.10-rc3-mm1 next, but are
there are any recent changes in this area ?


Thanks,
Badari

Unable to handle kernel paging request at 0000000000100108 RIP:
<ffffffff801a4571>{__writeback_single_inode+881}
PML4 0
Oops: 0002 [1] SMP
CPU 0
Modules linked in:
Pid: 209, comm: kswapd0 Not tainted 2.6.10-rc2-mm4n
RIP: 0010:[<ffffffff801a4571>]
<ffffffff801a4571>{__writeback_single_inode+881}
RSP: 0018:ffff8101dff7dc48 EFLAGS: 00010246
RAX: 0000000000100100 RBX: 0000000000000000 RCX: 0000000000200200
RDX: ffff8101dd70cd80 RSI: 0000000000000292 RDI: ffff8101dd70cea8
RBP: ffff8101dd70cd70 R08: 00000000fffffffa R09: 0000000012bffd80
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff8101dd70ce90 R14: ffff8101dff7dd18 R15: ffff8101dff87400
FS: 00002aaaaaf3b0a0(0000) GS:ffffffff8063c9c0(0000)
knlGS:000000005596c080
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000100108 CR3: 0000000000763000 CR4: 00000000000006e0
Process kswapd0 (pid: 209, threadinfo ffff8101dff7c000, task
ffff8101bff34860)
Stack: ffff810006356780 0000000100000056 ffff8100063567f0
0000000000000056
0000000000000012 ffff8101dff58bc0 0000000000000007
ffff8101dee82180
ffff8101dee82000 ffffffff80163a85
Call Trace:<ffffffff80163a85>{kmem_freepages+309}
<ffffffff8016411b>{slab_destroy+187}
<ffffffff801a46a6>{write_inode_now+102}
<ffffffff8019b797>{generic_forget_inode+135}
<ffffffff8019a72e>{iput+126} <ffffffff801995a8>{prune_dcache+424}
<ffffffff80199627>{shrink_dcache_memory+23}
<ffffffff801687fc>{shrink_slab+204}
<ffffffff80168aac>{balance_pgdat+572}
<ffffffff80168e27>{kswapd+327}
<ffffffff8014d0f0>{autoremove_wake_function+0}
<ffffffff8014d0f0>{autoremove_wake_function+0}
<ffffffff8010f11b>{child_rip+8} <ffffffff80168ce0>{kswapd+0}
<ffffffff8010f113>{child_rip+0}

Code: 48 89 48 08 48 89 01 48 8b 05 51 d5 35 00 48 89 50 08 48 89
RIP <ffffffff801a4571>{__writeback_single_inode+881} RSP
<ffff8101dff7dc48>
CR2: 0000000000100108


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