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[Bug 1504237] [NEW] Serial port ttyS0 not working after automatic kernel upgrade

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Public bug reported:

After automatic upgrades on four machines the serial port stopped working
I did "apt-get purge linux-image-3.13.0-65-generic" and the serial port is functional again

All of them were working OK on:
Linux version 3.13.0-63-generic (buildd@lgw01-18) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #103-Ubuntu SMP Fri Aug 14 21:42:59 UTC 2015 (Ubuntu 3.13.0-63.103-generic 3.13.11-ckt25)

And failed after the automatic install of:
Linux version 3.13.0-65-generic (buildd@lgw01-55) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #105-Ubuntu SMP Mon Sep 21 18:50:58 UTC 2015 (Ubuntu 3.13.0-65.105-generic 3.13.11-ckt26)

The ports are used by a KVM VM via TCP using socat and on two different
motherboards/CPUs

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-65-generic (not installed)
ProcVersionSignature: Ubuntu 3.13.0-63.103-generic 3.13.11-ckt25
Uname: Linux 3.13.0-63-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-63-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3.15
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Date: Thu Oct  8 17:09:19 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-03-16 (205 days ago)
InstallationMedia: Ubuntu-Server 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.3)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 062a:0000 Creative Labs Optical mouse
 Bus 001 Device 003: ID 04d9:1603 Holtek Semiconductor, Inc. Keyboard
 Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/vmlinuz-3.13.0-63-generic.efi.signed root=UUID=5cdd01fa-ca5c-4ef8-a387-e318087bac86 ro rootflags=subvol=@
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-63-generic N/A
 linux-backports-modules-3.13.0-63-generic  N/A
 linux-firmware                             1.127.15
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
 Oct  8 11:37:56 vantage05 dhclient: DHCPREQUEST of 192.168.4.101 on p1p1 to 192.168.4.1 port 67 (xid=0x1b05e146)
 Oct  8 11:37:57 vantage05 dhclient: DHCPACK of 192.168.4.101 from 192.168.4.1
 Oct  8 11:37:57 vantage05 dhclient: bound to 192.168.4.101 -- renewal in 37939 seconds.
 Oct  8 12:35:12 vantage05 kernel: [188005.853062] [drm:vlv_set_rps_idle] *ERROR* timed out waiting for Punit
dmi.bios.date: 11/04/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.70
dmi.board.name: Q1900B-ITX
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.70:bd11/04/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnQ1900B-ITX:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug trusty

-- 
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https://bugs.launchpad.net/bugs/1504237

Title:
  Serial port ttyS0 not working after automatic kernel upgrade

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  After automatic upgrades on four machines the serial port stopped working
  I did "apt-get purge linux-image-3.13.0-65-generic" and the serial port is functional again

  All of them were working OK on:
  Linux version 3.13.0-63-generic (buildd@lgw01-18) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #103-Ubuntu SMP Fri Aug 14 21:42:59 UTC 2015 (Ubuntu 3.13.0-63.103-generic 3.13.11-ckt25)

  And failed after the automatic install of:
  Linux version 3.13.0-65-generic (buildd@lgw01-55) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #105-Ubuntu SMP Mon Sep 21 18:50:58 UTC 2015 (Ubuntu 3.13.0-65.105-generic 3.13.11-ckt26)

  The ports are used by a KVM VM via TCP using socat and on two
  different motherboards/CPUs

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-65-generic (not installed)
  ProcVersionSignature: Ubuntu 3.13.0-63.103-generic 3.13.11-ckt25
  Uname: Linux 3.13.0-63-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-63-generic.
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.1-0ubuntu3.15
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
  Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
  Date: Thu Oct  8 17:09:19 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-03-16 (205 days ago)
  InstallationMedia: Ubuntu-Server 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.3)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 062a:0000 Creative Labs Optical mouse
   Bus 001 Device 003: ID 04d9:1603 Holtek Semiconductor, Inc. Keyboard
   Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/vmlinuz-3.13.0-63-generic.efi.signed root=UUID=5cdd01fa-ca5c-4ef8-a387-e318087bac86 ro rootflags=subvol=@
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-63-generic N/A
   linux-backports-modules-3.13.0-63-generic  N/A
   linux-firmware                             1.127.15
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:
   Oct  8 11:37:56 vantage05 dhclient: DHCPREQUEST of 192.168.4.101 on p1p1 to 192.168.4.1 port 67 (xid=0x1b05e146)
   Oct  8 11:37:57 vantage05 dhclient: DHCPACK of 192.168.4.101 from 192.168.4.1
   Oct  8 11:37:57 vantage05 dhclient: bound to 192.168.4.101 -- renewal in 37939 seconds.
   Oct  8 12:35:12 vantage05 kernel: [188005.853062] [drm:vlv_set_rps_idle] *ERROR* timed out waiting for Punit
  dmi.bios.date: 11/04/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.70
  dmi.board.name: Q1900B-ITX
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.70:bd11/04/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnQ1900B-ITX:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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