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[audiophyl <audiophyl@xxxxxxxxx>]

Are there any other tests which would be helpful for me to perform? Any
other information which may be of use?

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https://bugs.launchpad.net/bugs/1189565

Title:
  Random CPU hard locks on Intel D101GGC w/12.04 Server

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  itdept@toolbox:~$ lsb_release -rd
  Description:	Ubuntu 12.04.2 LTS
  Release:	12.04

  itdept@toolbox:/var/log$ apt-cache policy linux
  linux:
    Installed: (none)
    Candidate: 3.2.0.45.54
    Version table:
       3.2.0.45.54 0
          500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
       3.2.0.23.25 0
          500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

  itdept@toolbox:/var/log$ apt-cache policy linux-generic-lts-quantal
  linux-generic-lts-quantal:
    Installed: 3.5.0.32.39
    Candidate: 3.5.0.32.39
    Version table:
   *** 3.5.0.32.39 0
          500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
          100 /var/lib/dpkg/status

  Following a clean install of 12.04 Server, I was experiencing
  seemingly random 'hard LOCKUP's on my machine. The computer would
  become unresponsive for several minutes at a time, and something like
  this would show up in dmesg:

  [1509353.540014] ------------[ cut here ]------------
  [1509353.540014] WARNING: at /build/buildd/linux-lts-quantal-3.5.0/kernel/watchdog.c:242 watchdog_overflow_callback+0x9a/0xc0()
  [1509353.540014] Hardware name:         
  [1509353.540014] Watchdog detected hard LOCKUP on cpu 1
  [1509353.540014] Modules linked in: btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs reiserfs radeon snd_hda_codec_realtek snd_hda_intel snd_hda_codec ttm snd_hwdep drm_kms_helper snd_pcm drm snd_timer snd ext2 soundcore i2c_algo_bit i2c_piix4 snd_page_alloc serio_raw shpchp microcode mac_hid ppdev parport_pc lp parport hid_generic usbhid 8139too hid 8139cp sata_sil pata_atiixp
  [1509353.540014] Pid: 21317, comm: kworker/1:0 Tainted: G        W    3.5.0-30-generic #51~precise1-Ubuntu
  [1509353.540014] Call Trace:
  [1509353.540014]  <NMI>  [<ffffffff81052c8f>] warn_slowpath_common+0x7f/0xc0
  [1509353.540014]  [<ffffffff81052d86>] warn_slowpath_fmt+0x46/0x50
  [1509353.540014]  [<ffffffff810e1d2a>] watchdog_overflow_callback+0x9a/0xc0
  [1509353.540014]  [<ffffffff8111f79c>] __perf_event_overflow+0x9c/0x220
  [1509353.540014]  [<ffffffff8111c854>] ? perf_event_update_userpage+0x24/0x110
  [1509353.540014]  [<ffffffff8111fe84>] perf_event_overflow+0x14/0x20
  [1509353.540014]  [<ffffffff81027225>] p4_pmu_handle_irq+0x125/0x210
  [1509353.540014]  [<ffffffff8169e711>] perf_event_nmi_handler+0x21/0x30
  [1509353.540014]  [<ffffffff8169de51>] nmi_handle.isra.0+0x51/0x80
  [1509353.540014]  [<ffffffff8169df68>] default_do_nmi+0x58/0x240
  [1509353.540014]  [<ffffffff8169e1e0>] do_nmi+0x90/0xd0
  [1509353.540014]  [<ffffffff8169d47c>] end_repeat_nmi+0x1a/0x1e
  [1509353.540014]  [<ffffffff8139a819>] ? acpi_os_write_port+0x1e/0x30
  [1509353.540014]  [<ffffffff8139a819>] ? acpi_os_write_port+0x1e/0x30
  [1509353.540014]  [<ffffffff8139a819>] ? acpi_os_write_port+0x1e/0x30
  [1509353.540014]  <<EOE>>  [<ffffffff8153248d>] do_drv_write+0x2d/0x70
  [1509353.540014]  [<ffffffff81532721>] acpi_cpufreq_target+0x251/0x2a0
  [1509353.540014]  [<ffffffff8152b5a2>] __cpufreq_driver_target+0x42/0x50
  [1509353.540014]  [<ffffffff8152f68f>] dbs_check_cpu+0x28f/0x330
  [1509353.540014]  [<ffffffff8152f7d1>] do_dbs_timer+0xa1/0x110
  [1509353.540014]  [<ffffffff81071af7>] process_one_work+0x127/0x470
  [1509353.540014]  [<ffffffff81072d35>] worker_thread+0x165/0x370
  [1509353.540014]  [<ffffffff81072bd0>] ? manage_workers.isra.29+0x130/0x130
  [1509353.540014]  [<ffffffff81077cd3>] kthread+0x93/0xa0
  [1509353.540014]  [<ffffffff816a6524>] kernel_thread_helper+0x4/0x10
  [1509353.540014]  [<ffffffff81077c40>] ? flush_kthread_worker+0xb0/0xb0
  [1509353.540014]  [<ffffffff816a6520>] ? gs_change+0x13/0x13
  [1509353.540014] ---[ end trace 31bbfa84b207ef07 ]---

  Following installation of a BIOS update, the logged lockups are less
  frequent (twice in 20 days, as opposed to several times per day) and
  far more brief (haven't caught one in progress since, as opposed to
  being unable to do anything but wait for 5-10 minutes per occurrence)
  but are still occurring.

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