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[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: "Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>
Date: Sun, 25 Oct 2015 21:06:17 -0000
Reply-to: Bug 1509751 <1509751@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Hans109h, the next step is to fully commit bisect from kernel 3.16 to
4.2 in order to identify the last good kernel commit, followed
immediately by the first bad one. This will allow for a more expedited
analysis of the root cause of your issue. Could you please do this
following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Tags added: needs-bisect

** Description changed:

- Same problem as
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1313981.  Given the
- time and kernel development that has occurred since I reported that bug,
- I thought i would start a new bug report.
- 
- Upon upgrading to Ubuntu Gnome 15.10 with kernel 4.2 I am once again
- unable to access my serial port.
- 
- I have tested the mainline kernel, v4.3-rc6-unstable and the bug is
- still present.
+ Upon upgrading from 14.10 to Ubuntu Gnome 15.10 with kernel 4.2 I am
+ once again unable to access my serial port.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/pcmC1D0c', '/dev/snd/controlC1', '/dev/snd/by-path', '/dev/snd/hwC0D3', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Sat Oct 24 22:50:11 2015
  HibernationDevice: RESUME=UUID=61ccfbf9-f4d0-4989-8d82-be0dd1500450
  InstallationDate: Installed on 2014-11-30 (328 days ago)
  InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: System manufacturer System Product Name
  ProcEnviron:
-  TERM=xterm-256color
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm-256color
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=e0e80586-764e-42bf-8659-c5da430f1d1e ro crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
-  linux-restricted-modules-4.2.0-16-generic N/A
-  linux-backports-modules-4.2.0-16-generic  N/A
-  linux-firmware                            1.149
+  linux-restricted-modules-4.2.0-16-generic N/A
+  linux-backports-modules-4.2.0-16-generic  N/A
+  linux-firmware                            1.149
  RfKill:
-  0: phy0: Wireless LAN
-  	Soft blocked: yes
-  	Hard blocked: no
+  0: phy0: Wireless LAN
+   Soft blocked: yes
+   Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-10-24 (0 days ago)
  dmi.bios.date: 08/13/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2104
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z77-V
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2104:bd08/13/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8Z77-V:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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

-- 
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https://bugs.launchpad.net/bugs/1509751

Title:
  Kernel disabling serial port ttyS0 again

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Upon upgrading from 14.10 to Ubuntu Gnome 15.10 with kernel 4.2 I am
  once again unable to access my serial port.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/pcmC1D0c', '/dev/snd/controlC1', '/dev/snd/by-path', '/dev/snd/hwC0D3', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Sat Oct 24 22:50:11 2015
  HibernationDevice: RESUME=UUID=61ccfbf9-f4d0-4989-8d82-be0dd1500450
  InstallationDate: Installed on 2014-11-30 (328 days ago)
  InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: System manufacturer System Product Name
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=e0e80586-764e-42bf-8659-c5da430f1d1e ro crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: yes
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-10-24 (0 days ago)
  dmi.bios.date: 08/13/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2104
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z77-V
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2104:bd08/13/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8Z77-V:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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References

[Bug 1509751] [NEW] Kernel disabling serial port ttyS0 again
From: Hans109h, 2015-10-25