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Message-Id: <1181292952.7348.276.camel@twins> Date: Fri, 08 Jun 2007 10:55:52 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Alan Stern <stern@...land.harvard.edu> Cc: Andrew Morton <akpm@...ux-foundation.org>, Greg Kroah-Hartman <gregkh@...e.de>, mdharm-usb@...-eyed-alien.net, usb-storage@...ts.one-eyed-alien.net, linux-kernel@...r.kernel.org Subject: Re: [usb-storage] 2.6.22-rc4-mm2 - usb-storage 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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