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[Launchpad Bug Tracker <1392071@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1392071

Title:
  sane (scanimage -L) hangs

Status in linux package in Ubuntu:
  Expired

Bug description:
  dmesg:

  [ 3600.928077] INFO: task saned:8150 blocked for more than 120 seconds.
  [ 3600.928089]       Not tainted 3.13.0-39-generic #66-Ubuntu
  [ 3600.928091] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 3600.928094] saned           D da5d1540     0  8150   1185 0x00000000
  [ 3600.928102]  c649fec8 00200086 c108a36a da5d1540 00000000 c1a92540 4a81b2d8 000002bb
  [ 3600.928109]  c1a92540 d67a4e00 da23c100 da5d1540 00000000 da23c144 da23c144 0000241d
  [ 3600.928115]  c649fecc c1088fab da5d1540 da5d1540 da08a700 da5d1540 da5d1540 c649feb4
  [ 3600.928122] Call Trace:
  [ 3600.928140]  [<c108a36a>] ? check_preempt_wakeup+0x1aa/0x250
  [ 3600.928145]  [<c1088fab>] ? update_curr+0x12b/0x1e0
  [ 3600.928154]  [<c10864bd>] ? __enqueue_entity+0x6d/0x80
  [ 3600.928179]  [<c16578d3>] schedule_preempt_disabled+0x23/0x60
  [ 3600.928184]  [<c165921d>] __mutex_lock_slowpath+0x10d/0x171
  [ 3600.928190]  [<c165874c>] mutex_lock+0x1c/0x28
  [ 3600.928198]  [<dc88cbfb>] pp_ioctl+0x1b/0x40 [ppdev]
  [ 3600.928203]  [<dc88cbe0>] ? pp_do_ioctl+0x860/0x860 [ppdev]
  [ 3600.928211]  [<c118a252>] do_vfs_ioctl+0x2e2/0x4d0
  [ 3600.928215]  [<c16570b8>] ? __schedule+0x358/0x770
  [ 3600.928219]  [<c118718d>] ? final_putname+0x1d/0x40
  [ 3600.928223]  [<c1187334>] ? putname+0x24/0x40
  [ 3600.928234]  [<c1178c06>] ? do_sys_open+0x196/0x260
  [ 3600.928238]  [<c118a4a0>] SyS_ioctl+0x60/0x80
  [ 3600.928248]  [<c1661c8d>] sysenter_do_call+0x12/0x12
  [ 3600.928254] INFO: task scanimage:8549 blocked for more than 120 seconds.
  [ 3600.928256]       Not tainted 3.13.0-39-generic #66-Ubuntu
  [ 3600.928258] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 3600.928260] scanimage       D d467db00     0  8549   8422 0x00000000
  [ 3600.928264]  d52dfec8 00000082 d467db00 d467db00 d52dfef4 c1a92540 c1924a00 00000024
  [ 3600.928270]  c1a92540 c1924a00 d467db00 da5d1540 00000000 00000008 db026aa4 00000000
  [ 3600.928276]  d52dfef4 c0190d20 d52dfee0 c1186d00 d52dff80 d52dfec0 daf01000 00000000
  [ 3600.928282] Call Trace:
  [ 3600.928287]  [<c1186d00>] ? path_openat+0xb0/0x520
  [ 3600.928293]  [<c16578d3>] schedule_preempt_disabled+0x23/0x60
  [ 3600.928297]  [<c165921d>] __mutex_lock_slowpath+0x10d/0x171
  [ 3600.928302]  [<c165874c>] mutex_lock+0x1c/0x28
  [ 3600.928307]  [<dc88cbfb>] pp_ioctl+0x1b/0x40 [ppdev]
  [ 3600.928312]  [<dc88cbe0>] ? pp_do_ioctl+0x860/0x860 [ppdev]
  [ 3600.928316]  [<c118a252>] do_vfs_ioctl+0x2e2/0x4d0
  [ 3600.928320]  [<c118718d>] ? final_putname+0x1d/0x40
  [ 3600.928324]  [<c118718d>] ? final_putname+0x1d/0x40
  [ 3600.928327]  [<c1187334>] ? putname+0x24/0x40
  [ 3600.928331]  [<c1178c06>] ? do_sys_open+0x196/0x260
  [ 3600.928336]  [<c118a4a0>] SyS_ioctl+0x60/0x80
  [ 3600.928340]  [<c1661c8d>] sysenter_do_call+0x12/0x12

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