[Kernel-packages] [Bug 1289378] Re: rt2800 crash on skb_push, apparently underflows the skb area

2014-03-20 Thread khushboo
Is this issue resolved? i am also facing crash in skb_push function
while adding mac header in data  can anyone help for this please
 :(

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https://bugs.launchpad.net/bugs/1289378

Title:
  rt2800 crash on skb_push, apparently underflows the skb area

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  I have RT2800-based 5 GHz wireless card that serves as access point
  with hostapd. The hardware has served me well for years, but just
  yesterday on the 6th, the system has started crashing random. The
  system is headless, so I have no images of the prior crashes, but I
  connected up LCD last night and when I woke up, I saw a crash on the
  screen which I photographed. None of the crashes seem to be logged in
  dmesg. Based on experience so far, the system crashes unpredictably,
  the shortest interval that I've seen it crash is 20 minutes and the
  longest may be about 10 hours. Typically it won't last more than an
  hour, though.

  I found Tuomas Räsänen complaining about a crash that smells like the
  same issue to me:
  http://permalink.gmane.org/gmane.linux.drivers.rt2x00.user/2460

  Tuomas mentions that the crash occurs on hostapd version 2.x only.
  According to my dpkg.log, hostapd updated from version 1:1.0-3ubuntu4
  to 1:2.1.0ubuntu1 on 6th 09:00, and the first hard crash was sometime
  between 18:18 and 19:20 that day. I am currently running with
  rt2800pci removed from kernel, which seems to have worked around the
  crash. My other wlan card, ath9k, seems to produce no problems.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-16-generic 3.13.0-16.36
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Mar  7 10:11 seq
   crw-rw 1 root audio 116, 33 Mar  7 10:11 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA:
   country EU:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Fri Mar  7 15:47:11 2014
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  PciMultimedia:
   
  ProcEnviron:
   TERM=screen-256color-bce
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-16-generic 
root=UUID=f71305f7-0fa2-4521-b633-87103dab6ace ro cgroup_disable=memory 
elevator=cfq
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-16-generic N/A
   linux-backports-modules-3.13.0-16-generic  N/A
   linux-firmware 1.126
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2011-04-29 (1042 days ago)
  dmi.bios.date: 12/22/2011
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: BLH6710H.86A.0146.2011.1222.1415
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DH67CL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG10212-210
  dmi.chassis.type: 3
  dmi.modalias: 
dmi:bvnIntelCorp.:bvrBLH6710H.86A.0146.2011.1222.1415:bd12/22/2011:svn:pn:pvr:rvnIntelCorporation:rnDH67CL:rvrAAG10212-210:cvn:ct3:cvr:

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1289378] Re: rt2800 crash on skb_push, apparently underflows the skb area

2014-03-19 Thread Antti S. Lankila
Submited upstream bug https://bugzilla.kernel.org/show_bug.cgi?id=72471

** Bug watch added: Linux Kernel Bug Tracker #72471
   http://bugzilla.kernel.org/show_bug.cgi?id=72471

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1289378

Title:
  rt2800 crash on skb_push, apparently underflows the skb area

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  I have RT2800-based 5 GHz wireless card that serves as access point
  with hostapd. The hardware has served me well for years, but just
  yesterday on the 6th, the system has started crashing random. The
  system is headless, so I have no images of the prior crashes, but I
  connected up LCD last night and when I woke up, I saw a crash on the
  screen which I photographed. None of the crashes seem to be logged in
  dmesg. Based on experience so far, the system crashes unpredictably,
  the shortest interval that I've seen it crash is 20 minutes and the
  longest may be about 10 hours. Typically it won't last more than an
  hour, though.

  I found Tuomas Räsänen complaining about a crash that smells like the
  same issue to me:
  http://permalink.gmane.org/gmane.linux.drivers.rt2x00.user/2460

  Tuomas mentions that the crash occurs on hostapd version 2.x only.
  According to my dpkg.log, hostapd updated from version 1:1.0-3ubuntu4
  to 1:2.1.0ubuntu1 on 6th 09:00, and the first hard crash was sometime
  between 18:18 and 19:20 that day. I am currently running with
  rt2800pci removed from kernel, which seems to have worked around the
  crash. My other wlan card, ath9k, seems to produce no problems.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-16-generic 3.13.0-16.36
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Mar  7 10:11 seq
   crw-rw 1 root audio 116, 33 Mar  7 10:11 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA:
   country EU:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Fri Mar  7 15:47:11 2014
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  PciMultimedia:
   
  ProcEnviron:
   TERM=screen-256color-bce
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-16-generic 
root=UUID=f71305f7-0fa2-4521-b633-87103dab6ace ro cgroup_disable=memory 
elevator=cfq
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-16-generic N/A
   linux-backports-modules-3.13.0-16-generic  N/A
   linux-firmware 1.126
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2011-04-29 (1042 days ago)
  dmi.bios.date: 12/22/2011
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: BLH6710H.86A.0146.2011.1222.1415
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DH67CL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG10212-210
  dmi.chassis.type: 3
  dmi.modalias: 
dmi:bvnIntelCorp.:bvrBLH6710H.86A.0146.2011.1222.1415:bd12/22/2011:svn:pn:pvr:rvnIntelCorporation:rnDH67CL:rvrAAG10212-210:cvn:ct3:cvr:

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1289378] Re: rt2800 crash on skb_push, apparently underflows the skb area

2014-03-19 Thread Antti S. Lankila
** Tags added: kernel-bug-reported-upstream

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1289378

Title:
  rt2800 crash on skb_push, apparently underflows the skb area

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  I have RT2800-based 5 GHz wireless card that serves as access point
  with hostapd. The hardware has served me well for years, but just
  yesterday on the 6th, the system has started crashing random. The
  system is headless, so I have no images of the prior crashes, but I
  connected up LCD last night and when I woke up, I saw a crash on the
  screen which I photographed. None of the crashes seem to be logged in
  dmesg. Based on experience so far, the system crashes unpredictably,
  the shortest interval that I've seen it crash is 20 minutes and the
  longest may be about 10 hours. Typically it won't last more than an
  hour, though.

  I found Tuomas Räsänen complaining about a crash that smells like the
  same issue to me:
  http://permalink.gmane.org/gmane.linux.drivers.rt2x00.user/2460

  Tuomas mentions that the crash occurs on hostapd version 2.x only.
  According to my dpkg.log, hostapd updated from version 1:1.0-3ubuntu4
  to 1:2.1.0ubuntu1 on 6th 09:00, and the first hard crash was sometime
  between 18:18 and 19:20 that day. I am currently running with
  rt2800pci removed from kernel, which seems to have worked around the
  crash. My other wlan card, ath9k, seems to produce no problems.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-16-generic 3.13.0-16.36
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Mar  7 10:11 seq
   crw-rw 1 root audio 116, 33 Mar  7 10:11 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA:
   country EU:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Fri Mar  7 15:47:11 2014
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  PciMultimedia:
   
  ProcEnviron:
   TERM=screen-256color-bce
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-16-generic 
root=UUID=f71305f7-0fa2-4521-b633-87103dab6ace ro cgroup_disable=memory 
elevator=cfq
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-16-generic N/A
   linux-backports-modules-3.13.0-16-generic  N/A
   linux-firmware 1.126
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2011-04-29 (1042 days ago)
  dmi.bios.date: 12/22/2011
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: BLH6710H.86A.0146.2011.1222.1415
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DH67CL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG10212-210
  dmi.chassis.type: 3
  dmi.modalias: 
dmi:bvnIntelCorp.:bvrBLH6710H.86A.0146.2011.1222.1415:bd12/22/2011:svn:pn:pvr:rvnIntelCorporation:rnDH67CL:rvrAAG10212-210:cvn:ct3:cvr:

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1289378] Re: rt2800 crash on skb_push, apparently underflows the skb area

2014-03-18 Thread Joseph Salisbury
This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report[0]? That will allow the upstream Developers to examine the issue,
and may provide a quicker resolution to the bug.

Please follow the instructions on the wiki page[0]. The first step is to
email the appropriate mailing list. If no response is received, then a
bug may be opened on bugzilla.kernel.org.

Once this bug is reported upstream, please add the tag: 'kernel-bug-
reported-upstream'.

[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel

** Changed in: linux (Ubuntu)
   Status: Incomplete = Triaged

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1289378

Title:
  rt2800 crash on skb_push, apparently underflows the skb area

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  I have RT2800-based 5 GHz wireless card that serves as access point
  with hostapd. The hardware has served me well for years, but just
  yesterday on the 6th, the system has started crashing random. The
  system is headless, so I have no images of the prior crashes, but I
  connected up LCD last night and when I woke up, I saw a crash on the
  screen which I photographed. None of the crashes seem to be logged in
  dmesg. Based on experience so far, the system crashes unpredictably,
  the shortest interval that I've seen it crash is 20 minutes and the
  longest may be about 10 hours. Typically it won't last more than an
  hour, though.

  I found Tuomas Räsänen complaining about a crash that smells like the
  same issue to me:
  http://permalink.gmane.org/gmane.linux.drivers.rt2x00.user/2460

  Tuomas mentions that the crash occurs on hostapd version 2.x only.
  According to my dpkg.log, hostapd updated from version 1:1.0-3ubuntu4
  to 1:2.1.0ubuntu1 on 6th 09:00, and the first hard crash was sometime
  between 18:18 and 19:20 that day. I am currently running with
  rt2800pci removed from kernel, which seems to have worked around the
  crash. My other wlan card, ath9k, seems to produce no problems.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-16-generic 3.13.0-16.36
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Mar  7 10:11 seq
   crw-rw 1 root audio 116, 33 Mar  7 10:11 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA:
   country EU:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Fri Mar  7 15:47:11 2014
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  PciMultimedia:
   
  ProcEnviron:
   TERM=screen-256color-bce
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-16-generic 
root=UUID=f71305f7-0fa2-4521-b633-87103dab6ace ro cgroup_disable=memory 
elevator=cfq
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-16-generic N/A
   linux-backports-modules-3.13.0-16-generic  N/A
   linux-firmware 1.126
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2011-04-29 (1042 days ago)
  dmi.bios.date: 12/22/2011
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: BLH6710H.86A.0146.2011.1222.1415
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DH67CL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG10212-210
  dmi.chassis.type: 3
  dmi.modalias: 
dmi:bvnIntelCorp.:bvrBLH6710H.86A.0146.2011.1222.1415:bd12/22/2011:svn:pn:pvr:rvnIntelCorporation:rnDH67CL:rvrAAG10212-210:cvn:ct3:cvr:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1289378/+subscriptions

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[Kernel-packages] [Bug 1289378] Re: rt2800 crash on skb_push, apparently underflows the skb area

2014-03-12 Thread Antti S. Lankila
Tested with 3.14-rc6, crash occurred in about 1 hour.

** Tags added: kernel-bug-exists-upstream

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1289378

Title:
  rt2800 crash on skb_push, apparently underflows the skb area

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have RT2800-based 5 GHz wireless card that serves as access point
  with hostapd. The hardware has served me well for years, but just
  yesterday on the 6th, the system has started crashing random. The
  system is headless, so I have no images of the prior crashes, but I
  connected up LCD last night and when I woke up, I saw a crash on the
  screen which I photographed. None of the crashes seem to be logged in
  dmesg. Based on experience so far, the system crashes unpredictably,
  the shortest interval that I've seen it crash is 20 minutes and the
  longest may be about 10 hours. Typically it won't last more than an
  hour, though.

  I found Tuomas Räsänen complaining about a crash that smells like the
  same issue to me:
  http://permalink.gmane.org/gmane.linux.drivers.rt2x00.user/2460

  Tuomas mentions that the crash occurs on hostapd version 2.x only.
  According to my dpkg.log, hostapd updated from version 1:1.0-3ubuntu4
  to 1:2.1.0ubuntu1 on 6th 09:00, and the first hard crash was sometime
  between 18:18 and 19:20 that day. I am currently running with
  rt2800pci removed from kernel, which seems to have worked around the
  crash. My other wlan card, ath9k, seems to produce no problems.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-16-generic 3.13.0-16.36
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Mar  7 10:11 seq
   crw-rw 1 root audio 116, 33 Mar  7 10:11 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA:
   country EU:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Fri Mar  7 15:47:11 2014
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  PciMultimedia:
   
  ProcEnviron:
   TERM=screen-256color-bce
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-16-generic 
root=UUID=f71305f7-0fa2-4521-b633-87103dab6ace ro cgroup_disable=memory 
elevator=cfq
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-16-generic N/A
   linux-backports-modules-3.13.0-16-generic  N/A
   linux-firmware 1.126
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2011-04-29 (1042 days ago)
  dmi.bios.date: 12/22/2011
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: BLH6710H.86A.0146.2011.1222.1415
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DH67CL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG10212-210
  dmi.chassis.type: 3
  dmi.modalias: 
dmi:bvnIntelCorp.:bvrBLH6710H.86A.0146.2011.1222.1415:bd12/22/2011:svn:pn:pvr:rvnIntelCorporation:rnDH67CL:rvrAAG10212-210:cvn:ct3:cvr:

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1289378] Re: rt2800 crash on skb_push, apparently underflows the skb area

2014-03-11 Thread Joseph Salisbury
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.14 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, 
please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as 
Confirmed.


Thanks in advance.


[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14-rc6-trusty/

** Changed in: linux (Ubuntu)
   Importance: Undecided = High

** Changed in: linux (Ubuntu)
   Status: Confirmed = Incomplete

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1289378

Title:
  rt2800 crash on skb_push, apparently underflows the skb area

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have RT2800-based 5 GHz wireless card that serves as access point
  with hostapd. The hardware has served me well for years, but just
  yesterday on the 6th, the system has started crashing random. The
  system is headless, so I have no images of the prior crashes, but I
  connected up LCD last night and when I woke up, I saw a crash on the
  screen which I photographed. None of the crashes seem to be logged in
  dmesg. Based on experience so far, the system crashes unpredictably,
  the shortest interval that I've seen it crash is 20 minutes and the
  longest may be about 10 hours. Typically it won't last more than an
  hour, though.

  I found Tuomas Räsänen complaining about a crash that smells like the
  same issue to me:
  http://permalink.gmane.org/gmane.linux.drivers.rt2x00.user/2460

  Tuomas mentions that the crash occurs on hostapd version 2.x only.
  According to my dpkg.log, hostapd updated from version 1:1.0-3ubuntu4
  to 1:2.1.0ubuntu1 on 6th 09:00, and the first hard crash was sometime
  between 18:18 and 19:20 that day. I am currently running with
  rt2800pci removed from kernel, which seems to have worked around the
  crash. My other wlan card, ath9k, seems to produce no problems.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-16-generic 3.13.0-16.36
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Mar  7 10:11 seq
   crw-rw 1 root audio 116, 33 Mar  7 10:11 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA:
   country EU:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Fri Mar  7 15:47:11 2014
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  PciMultimedia:
   
  ProcEnviron:
   TERM=screen-256color-bce
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-16-generic 
root=UUID=f71305f7-0fa2-4521-b633-87103dab6ace ro cgroup_disable=memory 
elevator=cfq
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-16-generic N/A
   linux-backports-modules-3.13.0-16-generic  N/A
   linux-firmware 1.126
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2011-04-29 (1042 days ago)
  dmi.bios.date: 12/22/2011
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: BLH6710H.86A.0146.2011.1222.1415
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DH67CL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG10212-210
  dmi.chassis.type: 3
  dmi.modalias: 
dmi:bvnIntelCorp.:bvrBLH6710H.86A.0146.2011.1222.1415:bd12/22/2011:svn:pn:pvr:rvnIntelCorporation:rnDH67CL:rvrAAG10212-210:cvn:ct3:cvr:

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