From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 14644] PROBLEM: system locking when burning dvd with an
externel usb dvd writer
Date: Fri, 20 Nov 2009 11:38:56 GMT
Message-ID: <200911201138.nAKBcuUs017049@demeter.kernel.org>
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http://bugzilla.kernel.org/show_bug.cgi?id=14644
--- Comment #3 from Laurent Carlier 2009-11-20 11:38:55 ---
Here is the revelant part of the log:
INFO: task wodim:2562 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
wodim D ffff88011eef5da0 0 2562 2420 0x00000000
ffff88011eef5da0 0000000000000082 0000000000000000 ffff88011e41b580
ffff8800282d3b00 ffff8800282d3b00 ffff88011e85a820 ffff880091b18000
ffff88011eef6040 000000000000e1c8 ffff88011eef6040 ffff880091b18000
Call Trace:
[] ? schedule_timeout+0x23d/0x380
[] ? blk_peek_request+0x13e/0x220
[] ? wait_for_common+0xd5/0x190
[] ? default_wake_function+0x0/0x20
[] ? blk_execute_rq+0x79/0xe0
[] ? blk_rq_map_user+0x1b3/0x2a0
[] ? sg_io+0x2b5/0x3f0
[] ? scsi_cmd_ioctl+0x4e0/0x540
[] ? current_fs_time+0x1e/0x30
[] ? __mutex_lock_slowpath+0x23d/0x330
[] ? __wake_up_common+0x50/0x80
[] ? file_update_time+0x111/0x1b0
[] ? cdrom_ioctl+0x51/0xff0 [cdrom]
[] ? pipe_write+0x41e/0x570
[] ? sr_block_ioctl+0x58/0xd0 [sr_mod]
[] ? __blkdev_driver_ioctl+0x75/0x90
[] ? blkdev_ioctl+0x1fb/0x700
[] ? block_ioctl+0x37/0x40
[] ? vfs_ioctl+0x1d/0xb0
[] ? do_vfs_ioctl+0x4/0x570
[] ? do_vfs_ioctl+0x88/0x570
[] ? sys_ioctl+0x80/0xa0
[] ? sys_write+0x4e/0x90
[] ? system_call_fastpath+0x16/0x1b
usb 3-6: reset high speed USB device using ehci_hcd and address 2
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