kernel-packages team mailing list archive

[Alan Pater <alan.pater@xxxxxxxxx>]

Public bug reported:

After a random period of time after a fresh boot, the system cache gets
corrupted. This is shown by hdparm -T.

Before system cache corruption:
 Timing cached reads:   1804 MB in  2.00 seconds = 902.88 MB/sec

After system cache corruption:
 Timing cached reads:   258 MB in  2.00 seconds = 129.10 MB/sec

Either the system battery or the AC adaptor is not functioning
correctly, the Dell bios at times indicates that the AC adaptor is not a
valid Dell product, though it is. In any case, the battery does not
charge, but remains at 0%.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-12-generic 3.11.0-12.19
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic i686
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  asp        1931 F.... pulseaudio
Date: Fri Dec  6 18:45:58 2013
HibernationDevice: RESUME=UUID=08003f81-dc4b-4697-adb9-c4f28291be17
InstallationDate: Installed on 2013-12-06 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
MachineType: Dell Inc. Latitude D420
MarkForUpload: True
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=ecd26c7d-0cb5-446e-a2ca-e4fefc0c0fd0 ro quiet splash processor.ignore_ppc=1 vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.11.0-12-generic N/A
 linux-backports-modules-3.11.0-12-generic  N/A
 linux-firmware                             1.116
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/02/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0TJ984
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd02/02/2008:svnDellInc.:pnLatitudeD420:pvr:rvnDellInc.:rn0TJ984:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D420
dmi.sys.vendor: Dell Inc.

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


** Tags: apport-bug i386 saucy

-- 
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/1258686

Title:
  Faulty laptop battery or AC throws system cache for a loop

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  After a random period of time after a fresh boot, the system cache
  gets corrupted. This is shown by hdparm -T.

  Before system cache corruption:
   Timing cached reads:   1804 MB in  2.00 seconds = 902.88 MB/sec

  After system cache corruption:
   Timing cached reads:   258 MB in  2.00 seconds = 129.10 MB/sec

  Either the system battery or the AC adaptor is not functioning
  correctly, the Dell bios at times indicates that the AC adaptor is not
  a valid Dell product, though it is. In any case, the battery does not
  charge, but remains at 0%.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-12-generic 3.11.0-12.19
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic i686
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  asp        1931 F.... pulseaudio
  Date: Fri Dec  6 18:45:58 2013
  HibernationDevice: RESUME=UUID=08003f81-dc4b-4697-adb9-c4f28291be17
  InstallationDate: Installed on 2013-12-06 (0 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
  MachineType: Dell Inc. Latitude D420
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=ecd26c7d-0cb5-446e-a2ca-e4fefc0c0fd0 ro quiet splash processor.ignore_ppc=1 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-12-generic N/A
   linux-backports-modules-3.11.0-12-generic  N/A
   linux-firmware                             1.116
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/02/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 0TJ984
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd02/02/2008:svnDellInc.:pnLatitudeD420:pvr:rvnDellInc.:rn0TJ984:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude D420
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1258686/+subscriptions