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    Subject2.6.11ac5 oops while reconstructing md array and moving volumegroup with pvmove
    I had created a new raid1 array and started moving a volume group to it at the
    same time while it was reconstructing. Got this oops after several hours,
    apparently while cron-jobs were run.

    1 GB of memory, HIGHMEM configured.

    Unable to handle kernel paging request at virtual address f88d63a0
    printing eip:
    c028a7f6
    *pde = 018eb067
    *pte = 00000000
    Oops: 0000 [#1]
    Modules linked in: esp6 ah6 nfsd exportfs via686a snd_ymfpci snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_opl3_lib snd_timer snd_hwdep snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore uhci_hcd i2c_dev w83781d i2c_sensor i2c_viapro i2c_core
    CPU: 0
    EIP: 0060:[core_in_sync+6/32] Not tainted VLI
    EFLAGS: 00010246 (2.6.11ac5)
    EIP is at core_in_sync+0x6/0x20
    eax: f88d3000 ebx: c0407260 ecx: 00000000 edx: 00019d00
    esi: f21d7aa0 edi: f6c78720 ebp: 00000000 esp: ea22eb74
    ds: 007b es: 007b ss: 0068
    Process find (pid: 14250, threadinfo=ea22e000 task=ebdf50e0)
    Stack: c028bf7c f7c05f60 e87945fc f21d7aa0 f882c06c c027ffb0 06740010 00000000
    ea22ebe0 ebed0520 ebed0520 c0280367 00000001 00000008 ebdf50e0 c01266e0
    e87945fc 0263bff0 00000000 f882c06c ebed0520 ea22ebe0 ebed0520 ea22ec40
    Call Trace:
    [mirror_map+76/192] mirror_map+0x4c/0xc0
    [__map_bio+64/256] __map_bio+0x40/0x100
    [__clone_and_map+551/576] __clone_and_map+0x227/0x240
    [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
    [__split_bio+142/256] __split_bio+0x8e/0x100
    [dm_request+100/144] dm_request+0x64/0x90
    [generic_make_request+326/480] generic_make_request+0x146/0x1e0
    [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
    [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
    [bio_clone+160/176] bio_clone+0xa0/0xb0
    [__map_bio+64/256] __map_bio+0x40/0x100
    [__clone_and_map+551/576] __clone_and_map+0x227/0x240
    [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
    [__split_bio+142/256] __split_bio+0x8e/0x100
    [dm_request+100/144] dm_request+0x64/0x90
    [ext3_get_block_handle+123/736] ext3_get_block_handle+0x7b/0x2e0
    [dm_request+100/144] dm_request+0x64/0x90
    [generic_make_request+326/480] generic_make_request+0x146/0x1e0
    [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
    [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
    [mempool_alloc+99/256] mempool_alloc+0x63/0x100
    [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
    [submit_bio+88/224] submit_bio+0x58/0xe0
    [autoremove_wake_function+0/80] autoremove_wake_function+0x0/0x50
    [__find_get_block+66/160] __find_get_block+0x42/0xa0
    [bio_alloc+200/400] bio_alloc+0xc8/0x190
    [submit_bh+193/272] submit_bh+0xc1/0x110
    [__ext3_get_inode_loc+309/528] __ext3_get_inode_loc+0x135/0x210
    [schedule+691/1184] schedule+0x2b3/0x4a0
    [generic_unplug_device+6/16] generic_unplug_device+0x6/0x10
    [ext3_read_inode+53/896] ext3_read_inode+0x35/0x380
    [ext3_alloc_inode+15/80] ext3_alloc_inode+0xf/0x50
    [alloc_inode+22/336] alloc_inode+0x16/0x150
    [ext3_lookup+132/176] ext3_lookup+0x84/0xb0
    [real_lookup+174/208] real_lookup+0xae/0xd0
    [do_lookup+126/144] do_lookup+0x7e/0x90
    [link_path_walk+1561/2880] link_path_walk+0x619/0xb40
    [path_lookup+109/272] path_lookup+0x6d/0x110
    [__user_walk+47/96] __user_walk+0x2f/0x60
    [vfs_lstat+26/80] vfs_lstat+0x1a/0x50
    [sys_lstat64+18/48] sys_lstat64+0x12/0x30
    [shmem_populate+173/336] shmem_populate+0xad/0x150
    [do_IRQ+69/96] do_IRQ+0x45/0x60
    [sysenter_past_esp+82/117] sysenter_past_esp+0x52/0x75
    Code: 27 00 00 00 00 8b 40 04 8b 40 18 0f a3 10 19 d2 31 c0 85 d2 0f 95 c0 c3 8d b6 00 00 00 00 8d bc 27 00 00 00 00 8b 40 04 8b 40 1c <0f> a3 10 19 d2 31 c0 85 d2 0f 95 c0 c3 8d b6 00 00 00 00 8d bc

    --
    Antti Salmela
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