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    SubjectRe: [usb-storage] 2.6.22-rc4-mm2 - usb-storage
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    Date
    On Thu, 2007-06-07 at 18:20 -0400, Alan Stern wrote:
    > On Thu, 7 Jun 2007, Peter Zijlstra wrote:
    >
    > > My kernel went chatty when I tried to access my usb-stick; which it
    > > didn't seem to find.
    >
    > > WARNING: at /usr/src/linux-2.6/drivers/usb/core/urb.c:293
    > > usb_submit_urb()
    > >
    > > Call Trace:
    > > [<ffffffff8020d4c7>] show_trace+0x34/0x4f
    > > [<ffffffff8020d4f4>] dump_stack+0x12/0x17
    > > [<ffffffff803cac6a>] usb_submit_urb+0x9f/0x226
    > > [<ffffffff803cc4c7>] usb_sg_wait+0x56/0x132
    > > [<ffffffff8820519d>] :usb_storage:usb_stor_bulk_transfer_sg+0x9d/0xf3
    > > [<ffffffff88205313>] :usb_storage:usb_stor_Bulk_transport+0x120/0x244
    > > [<ffffffff8820577f>] :usb_storage:usb_stor_invoke_transport+0x25/0x2d2
    > > [<ffffffff882066c0>] :usb_storage:usb_stor_control_thread+0x14b/0x1e7
    > > [<ffffffff8024a7df>] kthread+0x47/0x74
    > > [<ffffffff8020cc28>] child_rip+0xa/0x12
    >
    > This is false-alarm output from something intended to track down a
    > reported bug. The patch responsible is this one:

    Right, well then I have another problem. Because it doesn't find my
    usb-stick.

    I noticed from D states (quite easy to reproduce, just modprobe
    usb-storage):

    scsi_eh_6 D ffff8100079ed640 0 3568 2 (L-TLB)
    ffff81000ac45e10 0000000000000046 0000000000000000 0000000180252936
    0000000000000002 0000000100000000 ffff81000ac42700 ffff8100043ca240
    ffff81000ac42978 ffffffff8024fc8d 00000000000000ff ffff81000ac42700
    Call Trace:
    [<ffffffff804775a9>] wait_for_completion+0x82/0xc1
    [<ffffffff88201673>] :usb_storage:command_abort+0x7c/0x86
    [<ffffffff8805f54f>] :scsi_mod:scsi_error_handler+0x28e/0x4cc
    [<ffffffff8024a7ff>] kthread+0x47/0x74
    [<ffffffff8020cc28>] child_rip+0xa/0x12

    usb-storage D ffff8100079ed640 0 3570 2 (L-TLB)
    ffff81000ac4dd30 0000000000000046 0000000000000000 0000000100000046
    0000000000000002 0000000100000000 ffff81000ac4a780 ffff8100043ca240
    ffff81000ac4a9f8 ffffffff802518f5 00000000000000ff ffff81000ac4a780
    Call Trace:
    [<ffffffff804775a9>] wait_for_completion+0x82/0xc1
    [<ffffffff803cc896>] usb_sg_wait+0x115/0x132
    [<ffffffff8820219d>] :usb_storage:usb_stor_bulk_transfer_sg+0x9d/0xf3
    [<ffffffff88202313>] :usb_storage:usb_stor_Bulk_transport+0x120/0x244
    [<ffffffff8820277f>] :usb_storage:usb_stor_invoke_transport+0x25/0x2d2
    [<ffffffff882036c0>] :usb_storage:usb_stor_control_thread+0x14b/0x1e7
    [<ffffffff8024a7ff>] kthread+0x47/0x74
    [<ffffffff8020cc28>] child_rip+0xa/0x12

    scsi_eh_7 D ffff8100079ed640 0 3574 2 (L-TLB)
    ffff81000ac39e10 0000000000000046 0000000000000000 0000000100000046
    0000000000000002 0000000100000000 ffff81000ac16640 ffff8100043ca240
    ffff81000ac168b8 ffffffff8024fc8d 00000000000000ff ffff81000ac16640
    Call Trace:
    [<ffffffff804775a9>] wait_for_completion+0x82/0xc1
    [<ffffffff88201673>] :usb_storage:command_abort+0x7c/0x86
    [<ffffffff8805f54f>] :scsi_mod:scsi_error_handler+0x28e/0x4cc
    [<ffffffff8024a7ff>] kthread+0x47/0x74
    [<ffffffff8020cc28>] child_rip+0xa/0x12

    usb-storage D ffff81000773f140 0 3575 2 (L-TLB)
    ffff81000ac5fd30 0000000000000046 0000000000000000 0000000000000001
    ffffffff8020c310 0000000100000001 ffff81000ac5c880 ffff8100043ca240
    ffff81000ac5caf8 ffff81000ac2f8e8 00000000000000ff ffffffff80840f30
    Call Trace:
    [<ffffffff804775a9>] wait_for_completion+0x82/0xc1
    [<ffffffff803cc896>] usb_sg_wait+0x115/0x132
    [<ffffffff8820219d>] :usb_storage:usb_stor_bulk_transfer_sg+0x9d/0xf3
    [<ffffffff88202313>] :usb_storage:usb_stor_Bulk_transport+0x120/0x244
    [<ffffffff8820277f>] :usb_storage:usb_stor_invoke_transport+0x25/0x2d2
    [<ffffffff882036c0>] :usb_storage:usb_stor_control_thread+0x14b/0x1e7
    [<ffffffff8024a7ff>] kthread+0x47/0x74
    [<ffffffff8020cc28>] child_rip+0xa/0x12

    scsi_scan_6 D ffff8100079ed640 0 3579 2 (L-TLB)
    ffff81000ac4fa90 0000000000000046 0000000000000000 000000010ac46740
    0000000000000002 0000000100000000 ffff81000ac46740 ffff8100043ca240
    ffff81000ac469b8 ffffffff802518f5 00000000000000ff ffff81000ac46740
    Call Trace:
    [<ffffffff804775a9>] wait_for_completion+0x82/0xc1
    [<ffffffff803439e6>] blk_execute_rq+0xb3/0xd3
    [<ffffffff88061074>] :scsi_mod:scsi_execute+0xca/0xe6
    [<ffffffff88061149>] :scsi_mod:scsi_execute_req+0xb9/0xde
    [<ffffffff880622d2>] :scsi_mod:scsi_probe_and_add_lun+0x241/0xa8b
    [<ffffffff880630f3>] :scsi_mod:__scsi_scan_target+0xb5/0x5df
    [<ffffffff88063662>] :scsi_mod:scsi_scan_channel+0x45/0x70
    [<ffffffff8806375c>] :scsi_mod:scsi_scan_host_selected+0xcf/0x10a
    [<ffffffff88063979>] :scsi_mod:do_scan_async+0x16/0x12c
    [<ffffffff8024a7ff>] kthread+0x47/0x74
    [<ffffffff8020cc28>] child_rip+0xa/0x12

    scsi_scan_7 D ffff81000773f140 0 3580 2 (L-TLB)
    ffff81000ac53a90 0000000000000046 0000000000000000 000000010ac507c0
    0000000000000002 0000000100000000 ffff81000ac507c0 ffff8100043ca240
    ffff81000ac50a38 ffffffff802518f5 00000000000000ff ffff81000ac507c0
    Call Trace:
    [<ffffffff804775a9>] wait_for_completion+0x82/0xc1
    [<ffffffff803439e6>] blk_execute_rq+0xb3/0xd3
    [<ffffffff88061074>] :scsi_mod:scsi_execute+0xca/0xe6
    [<ffffffff88061149>] :scsi_mod:scsi_execute_req+0xb9/0xde
    [<ffffffff880622d2>] :scsi_mod:scsi_probe_and_add_lun+0x241/0xa8b
    [<ffffffff880630f3>] :scsi_mod:__scsi_scan_target+0xb5/0x5df
    [<ffffffff88063662>] :scsi_mod:scsi_scan_channel+0x45/0x70
    [<ffffffff8806375c>] :scsi_mod:scsi_scan_host_selected+0xcf/0x10a
    [<ffffffff88063979>] :scsi_mod:do_scan_async+0x16/0x12c
    [<ffffffff8024a7ff>] kthread+0x47/0x74
    [<ffffffff8020cc28>] child_rip+0xa/0x12

    lsusb D ffff810006ace0c0 0 4515 4472 (NOTLB)
    ffff81000ad65c58 0000000000000046 ffff81000ad65ea8 00000001045e51c0
    ffff81000d01cb48 000000018024fbf1 ffff81000d01c380 ffff81000685a200
    ffff81000d01c5f8 ffff81000d01c380 ffffffff8047a54b 0000000000000292
    Call Trace:
    [<ffffffff80479b65>] __down+0xe8/0x100
    [<ffffffff80479768>] __down_failed+0x35/0x3a
    [<ffffffff803d1b24>] usbdev_ioctl+0x4f/0x1333
    [<ffffffff802ad2bd>] do_ioctl+0x9d/0xb6
    [<ffffffff802ad523>] vfs_ioctl+0x24d/0x266
    [<ffffffff802ad595>] sys_ioctl+0x59/0x7c
    [<ffffffff8020bd6e>] system_call+0x7e/0x83
    [<0000003b834c9367>]



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