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[EricDP <1388645@xxxxxxxxxxxxxxxxxx>]

Up 17 days with wifi enabled... no issues. I'm going to say that fixed
it. Thanks!!

** Changed in: linux-lts-trusty (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1388645

Title:
  System hangs randomly

Status in linux-lts-trusty package in Ubuntu:
  Invalid

Bug description:
  I recently upgraded from 12.04 to 14.04. Afterwards, my system started
  hanging randomly, sometimes after just a couple hours of use, and the
  longest it went was about 32 hours. It's a full on freeze, not just X:
  Ctrl+Alt+Fx does nothing. SysRq+REISUB does nothing. I've tried
  tailing syslog and watching dmesg and there is nothing interesting
  logged near the hang.

  I ran memtest86+ two full passes, no errors.

  Assuming maybe there was a problem with the installation or upgrade
  process, I tried booting from a 14.04.1 USB (tried both 32-bit and
  64-bit), and both hang after a few hours. I also tried stepping back,
  using a 12.10 USB that I found and it also hangs.

  Assuming it was related to newer kernel, I then tried to boot from a
  brand new 12.04.5 USB (using the latest 3.13.0-32-generic kernel), and
  the system did *NOT* hang... I ran it  for five full days with no
  problems before I rebooted to continue troubleshooting the problem --
  so the newest 12.04 still seems good and the latest kernel seems good.
  But something in 12.10 and beyond is bad.

  I installed a crash-dump kernel and it doesn't seem to work - still
  hangs and doesn't load the kernel.

  I attempted to find help in the ubuntu forums, without much luck:
  http://ubuntuforums.org/showthread.php?t=2249927

  Output of lspci:

  00:00.0 Host bridge: Intel Corporation 82Q963/Q965 Memory Controller Hub (rev 02)
  00:01.0 PCI bridge: Intel Corporation 82Q963/Q965 PCI Express Root Port (rev 02)
  00:03.0 Communication controller: Intel Corporation 82Q963/Q965 HECI Controller (rev 02)
  00:19.0 Ethernet controller: Intel Corporation 82566DM Gigabit Network Connection (rev 02)
  00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
  00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
  00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
  00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
  00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
  00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 02)
  00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02)
  00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02)
  00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
  00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
  00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
  00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
  00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
  00:1f.0 ISA bridge: Intel Corporation 82801HO (ICH8DO) LPC Interface Controller (rev 02)
  00:1f.2 SATA controller: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) 6 port SATA Controller [AHCI mode] (rev 02)
  00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
  01:00.0 VGA compatible controller: NVIDIA Corporation G73 [GeForce 7300 GT] (rev a1)
  07:00.0 Ethernet controller: Qualcomm Atheros AR5212/AR5213 Wireless Network Adapter (rev 01)
  07:01.0 Multimedia audio controller: Ensoniq 5880B [AudioPCI] (rev 02)
  07:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22A IEEE-1394a-2000 Controller (PHY/Link) [iOHCI-Lynx]

  
  output of /proc/cpuinfo:

  processor	: 0
  vendor_id	: GenuineIntel
  cpu family	: 6
  model		: 15
  model name	: Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz
  stepping	: 6
  microcode	: 0xcb
  cpu MHz		: 1596.000
  cache size	: 4096 KB
  physical id	: 0
  siblings	: 2
  core id		: 0
  cpu cores	: 2
  apicid		: 0
  initial apicid	: 0
  fdiv_bug	: no
  f00f_bug	: no
  coma_bug	: no
  fpu		: yes
  fpu_exception	: yes
  cpuid level	: 10
  wp		: yes
  flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm tpr_shadow
  bogomips	: 4794.89
  clflush size	: 64
  cache_alignment	: 64
  address sizes	: 36 bits physical, 48 bits virtual
  power management:

  processor	: 1
  vendor_id	: GenuineIntel
  cpu family	: 6
  model		: 15
  model name	: Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz
  stepping	: 6
  microcode	: 0xcb
  cpu MHz		: 1596.000
  cache size	: 4096 KB
  physical id	: 0
  siblings	: 2
  core id		: 1
  cpu cores	: 2
  apicid		: 1
  initial apicid	: 1
  fdiv_bug	: no
  f00f_bug	: no
  coma_bug	: no
  fpu		: yes
  fpu_exception	: yes
  cpuid level	: 10
  wp		: yes
  flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm tpr_shadow
  bogomips	: 4794.89
  clflush size	: 64
  cache_alignment	: 64
  address sizes	: 36 bits physical, 48 bits virtual
  power management:
  --- 
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  eric       3109 F.... pulseaudio
   /dev/snd/controlC1:  eric       3109 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=b4985d2b-0b32-495e-90c6-4acaa1805b45
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB:
   
  ProcKernelCmdLine: root=UUID=93d1b75d-d714-4a99-8759-d53956a1c447 ro quiet splash  crashkernel=384M-2G:64M,2G-:128M
  ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-39-generic N/A
   linux-backports-modules-3.13.0-39-generic  N/A
   linux-firmware                             1.127.7
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  Tags:  trusty
  Uname: Linux 3.13.0-39-generic i686
  UpgradeStatus: Upgraded to trusty on 2014-09-09 (55 days ago)
  UserGroups:
   
  WpaSupplicantLog:
   
  _MarkForUpload: True
  dmi.bios.date: 06/18/2008
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: CO96510J.86A.6077.2008.0618.0057
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: DQ965GF
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAD41676-305
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrCO96510J.86A.6077.2008.0618.0057:bd06/18/2008:svn:pn:pvr:rvnIntelCorporation:rnDQ965GF:rvrAAD41676-305:cvn:ct3:cvr:

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