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[Bug 1390589] Re: 8086:08b1 [Lenovo V570] Intel Wireless 7260 wifi stops working


Asif Youssuff, the next step is to fully reverse commit bisect from
kernel 3.16 to 3.18-rc3 in order to identify the last bad commit,
followed immediately by the first good one. Once this commit has been
identified, then it may be reviewed as a candidate for backporting into
your release. Could you please do this following
?  Please note, finding adjacent kernel versions is not fully commit

Thank you for your understanding.

Helpful bug reporting tips:

** Tags added: needs-reverse-bisect

** Tags added: kernel-fixed-upstream

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

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  8086:08b1 [Lenovo V570] Intel Wireless 7260 wifi stops working

Status in “linux” package in Ubuntu:

Bug description:
  After several hours (generally) of being used, the wifi drops out
  unceremoniously and toggling the hardware radio switch on my machine
  does nothing to restore connectivity. After this occurs, I am unable
  to see any access points. Rebooting the machine solves the issue,
  until it happens again.

   Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 73)
   Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:4070]

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.16.0-24-generic 3.16.0-24.32 [modified: boot/vmlinuz-3.16.0-24-generic]
  ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
  Uname: Linux 3.16.0-24-generic x86_64
  ApportVersion: 2.14.7-0ubuntu10
  Architecture: amd64
   /dev/snd/controlC0:  asif       2478 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Fri Nov  7 14:11:07 2014
  HibernationDevice: RESUME=UUID=53025272-1910-418a-9f4a-b6ac00a768f1
  InstallationDate: Installed on 2014-11-01 (6 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Alpha amd64 (20141031)
  MachineType: LENOVO 1066A9U
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-24-generic root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=7
   linux-restricted-modules-3.16.0-24-generic N/A
   linux-backports-modules-3.16.0-24-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/27/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 44CN43WW
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Emerald Lake
  dmi.board.vendor: LENOVO
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnLENOVO:bvr44CN43WW:bd10/27/2011:svnLENOVO:pn1066A9U:pvrLenovoV570:rvnLENOVO:rnEmeraldLake:rvrFAB1:cvnLENOVO:ct10:cvr0.1:
  dmi.product.name: 1066A9U
  dmi.product.version: Lenovo V570
  dmi.sys.vendor: LENOVO

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