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    SubjectExt3 and/or SCSI bug?
    Date
    Hi all,

    (Please CC: me on replies, I'm not subscribed to the list)

    Below is an part of my dmesg output that I captured when all of a sudden one
    of my filesystems became mounted read-only (while some heavy reading/
    writing was being performed to that filesystem).

    Can anyone explain to me what is going on here, and why this is happening
    to me about every 10 days.
    Please note that this happened twice now in the last 10 days, both while
    running kernel version 2.6.2 and kernel 2.6.3 (for the last day). After the first
    time I've fsck'ed the file-system thoroughly.

    System details:
    Dual Athlon MP2000+, Asus A7M266-D motherboard.
    QLA12160 based SCSI card connected to 3 Maxtor Atlas IV 10K RPM drives.

    Best regards,

    Gertjan.

    Kernel output:

    EXT3-fs error (device sdb8): ext3_free_blocks: bit already cleared for block 1142880
    Aborting journal on device sdb8.
    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c021cce0>] scsi_request_fn+0x240/0x390
    [<c020d49d>] generic_unplug_device+0x8d/0x90
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01bb5d5>] journal_update_superblock+0x95/0x130
    [<c01ac5f9>] ext3_handle_error+0x59/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c020ec2a>] generic_make_request+0x16a/0x1f0
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01ac60d>] ext3_handle_error+0x6d/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    EXT3-fs error (device sdb8): ext3_free_blocks: bit already cleared for block 1142881
    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c021cce0>] scsi_request_fn+0x240/0x390
    [<c020d49d>] generic_unplug_device+0x8d/0x90
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01ac60d>] ext3_handle_error+0x6d/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    EXT3-fs error (device sdb8): ext3_free_blocks: bit already cleared for block 1142882
    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c020ec2a>] generic_make_request+0x16a/0x1f0
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01ac60d>] ext3_handle_error+0x6d/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    EXT3-fs error (device sdb8): ext3_free_blocks: bit already cleared for block 1142883
    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c0214488>] as_next_request+0x38/0x50
    [<c020b7c6>] elv_next_request+0x16/0x100
    [<c020d490>] generic_unplug_device+0x80/0x90
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01ac60d>] ext3_handle_error+0x6d/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    EXT3-fs error (device sdb8): ext3_free_blocks: bit already cleared for block 1142884
    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c020ec2a>] generic_make_request+0x16a/0x1f0
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01ac60d>] ext3_handle_error+0x6d/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    EXT3-fs error (device sdb8): ext3_free_blocks: bit already cleared for block 1142885
    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c0214488>] as_next_request+0x38/0x50
    [<c020b7c6>] elv_next_request+0x16/0x100
    [<c020d490>] generic_unplug_device+0x80/0x90
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01ac60d>] ext3_handle_error+0x6d/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    EXT3-fs error (device sdb8): ext3_free_blocks: bit already cleared for block 1142886
    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c0214488>] as_next_request+0x38/0x50
    [<c020b7c6>] elv_next_request+0x16/0x100
    [<c020d490>] generic_unplug_device+0x80/0x90
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01ac60d>] ext3_handle_error+0x6d/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    EXT3-fs error (device sdb8): ext3_free_blocks: bit already cleared for block 1142887
    bad: scheduling while atomic!
    Call Trace:
    [<c012049e>] schedule+0x68e/0x6a0
    [<c0214488>] as_next_request+0x38/0x50
    [<c020b7c6>] elv_next_request+0x16/0x100
    [<c020d490>] generic_unplug_device+0x80/0x90
    [<c0121776>] io_schedule+0x26/0x40
    [<c0163574>] __wait_on_buffer+0xc4/0xd0
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c01229d0>] autoremove_wake_function+0x0/0x50
    [<c016754b>] sync_dirty_buffer+0x4b/0xb0
    [<c01ac60d>] ext3_handle_error+0x6d/0xb0
    [<c01ac6a5>] ext3_error+0x55/0x60
    [<c01a0d03>] ext3_free_blocks+0x523/0x5d0
    [<c01a6958>] ext3_free_data+0x128/0x150
    [<c01a6a6e>] ext3_free_branches+0xee/0x270
    [<c01a715e>] ext3_truncate+0x56e/0x670
    [<c01b34b9>] journal_start+0xa9/0xd0
    [<c01a4203>] start_transaction+0x23/0x60
    [<c01a4396>] ext3_delete_inode+0xc6/0x110
    [<c01a42d0>] ext3_delete_inode+0x0/0x110
    [<c017efcb>] generic_delete_inode+0xab/0x190
    [<c017f2b2>] iput+0x62/0x90
    [<c017b855>] dput+0x115/0x250
    [<c0174a6e>] sys_rename+0x1fe/0x220
    [<c0154e5f>] do_munmap+0x16f/0x1e0
    [<c0154f15>] sys_munmap+0x45/0x70
    [<c010959b>] syscall_call+0x7/0xb

    ext3_abort called.
    EXT3-fs abort (device sdb8): ext3_journal_start: Detected aborted journal
    Remounting filesystem read-only
    ext3_reserve_inode_write: aborting transaction: Journal has aborted in __ext3_journal_get_write_access<2>EXT3-fs error (device sdb8) in ext3_reserve_inode_write: Journal has aborted
    EXT3-fs error (device sdb8) in ext3_truncate: Journal has aborted
    ext3_reserve_inode_write: aborting transaction: Journal has aborted in __ext3_journal_get_write_access<2>EXT3-fs error (device sdb8) in ext3_reserve_inode_write: Journal has aborted
    EXT3-fs error (device sdb8) in ext3_orphan_del: Journal has aborted
    ext3_reserve_inode_write: aborting transaction: Journal has aborted in __ext3_journal_get_write_access<2>EXT3-fs error (device sdb8) in ext3_reserve_inode_write: Journal has aborted
    EXT3-fs error (device sdb8) in ext3_delete_inode: Journal has aborted
    EXT3-fs error (device sdb8) in start_transaction: Journal has aborted
    Feb 19 19:46:05 wingerd last message repeated 30 times
    __journal_remove_journal_head: freeing b_committed_data
    -
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