[Jaunty] System freezes randomly on Thinkpad T500

[bofphile]

I'm using Ubuntu Jaunty 64bit on my Thinkpad T500, and randomly I have system freezes. It seems the freezes happen regardless of what I'm doing (browsing the web while listening to music with rhythmbox). Also at the beginning, I had freezes with caps lock blinking, for the last freezes this was not the case. Can't move the mouse, or do anything beside shutdown the laptop. I noticed that the freezes happened not long after I began to use the laptop (a matter of minutes) whereas most of the time I can use the laptop for hours without problem.

I think the relevant part of /var/log/messages is:
Jun 14 15:48:40 chakib-laptop kernel: [ 643.677870] general protection fault: 0000 [#1] SMP
Jun 14 15:48:40 chakib-laptop kernel: [ 643.677880] last sysfs file: /sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq
Jun 14 15:48:40 chakib-laptop kernel: [ 643.677886] Dumping ftrace buffer:
Jun 14 15:48:40 chakib-laptop kernel: [ 643.677891] (ftrace buffer empty)
Jun 14 15:48:40 chakib-laptop kernel: [ 643.677895] CPU 1
Jun 14 15:48:40 chakib-laptop kernel: [ 643.677899] Modules linked in: snd_usb_audio snd_usb_lib aes_x86_64 aes_generic i915 drm binfmt_misc ppdev bridge stp bnep input_polldev joydev lp parport snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss arc4 snd_mixer_oss ecb snd_pcm snd_seq_dummy snd_seq_oss iwlagn iwlcore snd_seq_midi snd_rawmidi snd_seq_midi_event zaurus thinkpad_acpi snd_seq mac80211 pcmcia cdc_ether snd_timer snd_seq_device uvcvideo psmouse led_class usbnet yenta_socket rsrc_nonstatic snd compat_ioctl32 cdc_wdm cdc_acm cfg80211 nvram pcmcia_core mii soundcore snd_page_alloc ricoh_mmc sdhci_pci sdhci video serio_raw pcspkr videodev v4l1_compat intel_agp btusb iTCO_wdt iTCO_vendor_support output ohci1394 ieee1394 e1000e fbcon tileblit font bitblit softcursor
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678011] Pid: 2909, comm: Xorg Not tainted 2.6.28-11-generic #42-Ubuntu
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678016] RIP: 0010:[<ffffffff802e31c4>] [<ffffffff802e31c4>] __kmalloc+0x74/0x110
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678030] RSP: 0018:ffff880138857d98 EFLAGS: 00010006
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678034] RAX: 0000000000000000 RBX: 6effffe7ffffb200 RCX: 0000000000000008
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678039] RDX: ffff88002803df40 RSI: 00000000000080d0 RDI: 0000000000000200
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678043] RBP: ffff880138857dc8 R08: ffffffffa03a31c0 R09: 00000000000001b9
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678048] R10: 0000000000000001 R11: 0000000000003246 R12: ffffffff809b3e28
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678052] R13: 0000000000000286 R14: 00000000000080d0 R15: ffffffffa03a320e
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678058] FS: 00007f1f43ab8700(0000) GS:ffff88013b802d80(0000) knlGS:0000000000000000
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678063] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678067] CR2: 00000000025fba70 CR3: 0000000139957000 CR4: 00000000000406a0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678072] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678076] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678082] Process Xorg (pid: 2909, threadinfo ffff880138856000, task ffff88013981d980)
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678086] Stack:
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678089] 0000020000000000 ffff8801395f8000 ffff880139109000 ffff880138da5580
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678097] ffff880138da5580 ffff88012251e600 ffff880138857e58 ffffffffa03a320e
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678105] ffff880138857f08 ffffffff802e7961 ffff880138857df8 ffff8801386f1680
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678115] Call Trace:
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678119] [<ffffffffa03a320e>] i915_gem_execbuffer+0x4e/0x740 [i915]
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678136] [<ffffffff802e7961>] ? do_sync_read+0xf1/0x140
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678145] [<ffffffffa037e7fa>] drm_ioctl+0x10a/0x330 [drm]
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678170] [<ffffffffa03a31c0>] ? i915_gem_execbuffer+0x0/0x740 [i915]
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678185] [<ffffffff802f631d>] vfs_ioctl+0x7d/0xa0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678194] [<ffffffff802f6685>] do_vfs_ioctl+0x75/0x230
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678201] [<ffffffff802f68d9>] sys_ioctl+0x99/0xa0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678208] [<ffffffff802e82a0>] ? sys_read+0x50/0x90
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678215] [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678224] Code: fa 0f 1f 80 00 00 00 00 65 8b 04 25 24 00 00 00 48 98 49 8b 94 c4 e8 00 00 00 8b 7a 18 89 7d d4 48 8b 1a 48 85 db 74 4f 8b 42 14 <48> 8b 04 c3 48 89 02 4c 89 ef 57 9d 66 0f 1f 44 00 00 66 45 85
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678296] RIP [<ffffffff802e31c4>] __kmalloc+0x74/0x110
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678303] RSP <ffff880138857d98>
Jun 14 15:48:40 chakib-laptop kernel: [ 643.678308] ---[ end trace 7fadcc8d3e309359 ]---
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706500] general protection fault: 0000 [#2] SMP
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706509] last sysfs file: /sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706515] CPU 1
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706519] Modules linked in: snd_usb_audio snd_usb_lib aes_x86_64 aes_generic i915 drm binfmt_misc ppdev bridge stp bnep input_polldev joydev lp parport snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss arc4 snd_mixer_oss ecb snd_pcm snd_seq_dummy snd_seq_oss iwlagn iwlcore snd_seq_midi snd_rawmidi snd_seq_midi_event zaurus thinkpad_acpi snd_seq mac80211 pcmcia cdc_ether snd_timer snd_seq_device uvcvideo psmouse led_class usbnet yenta_socket rsrc_nonstatic snd compat_ioctl32 cdc_wdm cdc_acm cfg80211 nvram pcmcia_core mii soundcore snd_page_alloc ricoh_mmc sdhci_pci sdhci video serio_raw pcspkr videodev v4l1_compat intel_agp btusb iTCO_wdt iTCO_vendor_support output ohci1394 ieee1394 e1000e fbcon tileblit font bitblit softcursor
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706637] Pid: 4531, comm: gvfsd-smb Tainted: G D 2.6.28-11-generic #42-Ubuntu
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706642] RIP: 0010:[<ffffffff802e236c>] [<ffffffff802e236c>] kmem_cache_alloc+0x5c/0xc0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706656] RSP: 0018:ffff880112107b58 EFLAGS: 00010006
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706660] RAX: 0000000000000000 RBX: 6effffe7ffffb200 RCX: 00000000ffffffff
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706665] RDX: ffff88002803df40 RSI: 00000000000000d0 RDI: 0000000000000200
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706669] RBP: ffff880112107b88 R08: 00000000000000d0 R09: ffff88012e847328
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706674] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000282
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706678] R13: ffffffff809b3e28 R14: ffffffff805ad074 R15: 00000000000000d0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706684] FS: 00007fc3f9bce950(0000) GS:ffff88013b802d80(0000) knlGS:0000000000000000
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706689] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706693] CR2: 00007fce418a5460 CR3: 000000011a111000 CR4: 00000000000406a0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706698] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706702] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706708] Process gvfsd-smb (pid: 4531, threadinfo ffff880112106000, task ffff88011fdc5980)
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706712] Stack:
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706715] 0000020012107b68 0000000000000000 00000000000006d8 00000000000000d0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706723] ffff880112107cb8 ffffffff809b3e28 ffff880112107bc8 ffffffff805ad074
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706732] 0000000100000000 0000000000000000 ffff8801394d8d00 00000000000005a8
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706742] Call Trace:
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706746] [<ffffffff805ad074>] __alloc_skb+0x44/0x150
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706756] [<ffffffff805ea371>] sk_stream_alloc_skb+0x41/0x110
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706766] [<ffffffff805ed217>] tcp_sendmsg+0x507/0xb30
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706773] [<ffffffff805a6ed7>] sock_sendmsg+0x107/0x130
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706780] [<ffffffff80268930>] ? autoremove_wake_function+0x0/0x40
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706791] [<ffffffff80268930>] ? autoremove_wake_function+0x0/0x40
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706798] [<ffffffff802f7745>] ? set_fd_set+0x25/0x30
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706806] [<ffffffff802f8730>] ? core_sys_select+0x1e0/0x2a0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706813] [<ffffffff805a8b70>] ? lock_sock_nested+0xc0/0xe0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706820] [<ffffffff8069e7a3>] ? _spin_unlock_bh+0x13/0x20
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706828] [<ffffffff805a736a>] sys_sendto+0xea/0x120
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706835] [<ffffffff8026c659>] ? ktime_get_ts+0x59/0x60
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706842] [<ffffffff802f72e7>] ? poll_select_copy_remaining+0xf7/0x150
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706851] [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706859] Code: fa 0f 1f 80 00 00 00 00 65 8b 04 25 24 00 00 00 48 98 49 8b 94 c5 e8 00 00 00 8b 7a 18 89 7d d4 48 8b 1a 48 85 db 74 47 8b 42 14 <48> 8b 04 c3 48 89 02 4c 89 e7 57 9d 66 0f 1f 44 00 00 66 45 85
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706932] RIP [<ffffffff802e236c>] kmem_cache_alloc+0x5c/0xc0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706939] RSP <ffff880112107b58>
Jun 14 15:48:40 chakib-laptop kernel: [ 643.706944] ---[ end trace 7fadcc8d3e309359 ]---
Jun 14 15:48:40 chakib-laptop kernel: [ 643.804580] [drm:drm_release] *ERROR* Device busy: 1 0
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995257] general protection fault: 0000 [#3] SMP
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995267] last sysfs file: /sys/devices/virtual/net/pan0/statistics/collisions
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995273] CPU 1
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995276] Modules linked in: snd_usb_audio snd_usb_lib aes_x86_64 aes_generic i915 drm binfmt_misc ppdev bridge stp bnep input_polldev joydev lp parport snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss arc4 snd_mixer_oss ecb snd_pcm snd_seq_dummy snd_seq_oss iwlagn iwlcore snd_seq_midi snd_rawmidi snd_seq_midi_event zaurus thinkpad_acpi snd_seq mac80211 pcmcia cdc_ether snd_timer snd_seq_device uvcvideo psmouse led_class usbnet yenta_socket rsrc_nonstatic snd compat_ioctl32 cdc_wdm cdc_acm cfg80211 nvram pcmcia_core mii soundcore snd_page_alloc ricoh_mmc sdhci_pci sdhci video serio_raw pcspkr videodev v4l1_compat intel_agp btusb iTCO_wdt iTCO_vendor_support output ohci1394 ieee1394 e1000e fbcon tileblit font bitblit softcursor
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995390] Pid: 4940, comm: gvfs-fuse-daemo Tainted: G D 2.6.28-11-generic #42-Ubuntu
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995395] RIP: 0010:[<ffffffff802e31c4>] [<ffffffff802e31c4>] __kmalloc+0x74/0x110
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995410] RSP: 0018:ffff8801288edcf8 EFLAGS: 00010006
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995414] RAX: 0000000000000000 RBX: 6effffe7ffffb200 RCX: 0000000000000008
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995419] RDX: ffff88002803df40 RSI: 00000000000000d0 RDI: 0000000000000200
Jun 14 15:48:40 chakib-laptop kernel: [ 643.995424] RBP: ffff8801288edd28 R08: ffffffff80329ac0 R09: 0000000000000038

I already tested the memory with memtest, so I don't think it's a hardware failure. And I'm also using updated intel driver from this ppa: http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
HibernationDevice: RESUME=UUID=a11b6475-528f-4bc2-8472-885ef83baf89
MachineType: LENOVO 20827SG
Package: linux-image-2.6.28-11-generic 2.6.28-11.42 [modified: lib/modules/2.6.28-11-generic/kernel/sound/drivers/mpu401/snd-mpu401-uart.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/mpu401/snd-mpu401.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/opl3/snd-opl3-lib.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/opl3/snd-opl3-synth.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/pcsp/snd-pcsp.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/snd-dummy.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/snd-mtpav.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/snd-mts64.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/snd-portman2x4.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/snd-serial-u16550.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/snd-virmidi.ko lib/modules/2.6.28-11-generic/kernel/sound/drivers/vx/snd-vx-lib.ko lib/modules/2.6.28-11-generic/kernel/sound/i2c/other/snd-ak4114.ko lib/modules/2.6.28-11-generic/kernel/sound/i2c/other/snd-ak4117.ko lib/modules/2.6.28-11-generic/kernel/sound/i2c/other/snd-ak4xxx-adda.ko lib/modules/2.6.28-11-generic/kernel/sound/i2c/other/snd-pt2258.ko lib/modules/2.6.28-11-generic/kernel/sound/i2c/other/snd-tea575x-tuner.ko lib/modules/2.6.28-11-generic/kernel/sound/i2c/snd-cs8427.ko lib/modules/2.6.28-11-generic/kernel/sound/i2c/snd-i2c.ko lib/modules/2.6.28-11-generic/kernel/sound/isa/sb/snd-sb-common.ko lib/modules/2.6.28-11-generic/kernel/sound/isa/sb/snd-sb16-dsp.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/ac97/snd-ac97-codec.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/ali5451/snd-ali5451.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/au88x0/snd-au8810.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/au88x0/snd-au8820.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/au88x0/snd-au8830.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/aw2/snd-aw2.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/ca0106/snd-ca0106.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/cs46xx/snd-cs46xx.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-darla20.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-darla24.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-echo3g.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-gina20.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-gina24.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-indigo.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-indigodj.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-indigoio.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-layla20.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-layla24.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-mia.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/echoaudio/snd-mona.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/emu10k1/snd-emu10k1-synth.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/emu10k1/snd-emu10k1.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/emu10k1/snd-emu10k1x.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/hda/snd-hda-intel.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/ice1712/snd-ice1712.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/ice1712/snd-ice1724.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/ice1712/snd-ice17xx-ak4xxx.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/korg1212/snd-korg1212.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/mixart/snd-mixart.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/nm256/snd-nm256.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/oxygen/snd-hifier.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/oxygen/snd-oxygen-lib.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/oxygen/snd-oxygen.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/oxygen/snd-virtuoso.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/pcxhr/snd-pcxhr.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/riptide/snd-riptide.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/rme9652/snd-hdsp.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/rme9652/snd-hdspm.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/rme9652/snd-rme9652.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-ad1889.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-als300.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-als4000.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-atiixp-modem.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-atiixp.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-azt3328.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-bt87x.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-cmipci.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-cs4281.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-cs5530.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-ens1370.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-ens1371.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-es1938.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-es1968.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-fm801.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-intel8x0.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-intel8x0m.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-maestro3.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-rme32.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-rme96.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-sonicvibes.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-via82xx-modem.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/snd-via82xx.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/trident/snd-trident.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/vx222/snd-vx222.ko lib/modules/2.6.28-11-generic/kernel/sound/pci/ymfpci/snd-ymfpci.ko lib/modules/2.6.28-11-generic/kernel/sound/pcmcia/pdaudiocf/snd-pdaudiocf.ko lib/modules/2.6.28-11-generic/kernel/sound/pcmcia/vx/snd-vxpocket.ko lib/modules/2.6.28-11-generic/kernel/sound/soc/snd-soc-core.ko lib/modules/2.6.28-11-generic/kernel/sound/synth/emux/snd-emux-synth.ko lib/modules/2.6.28-11-generic/kernel/sound/synth/snd-util-mem.ko lib/modules/2.6.28-11-generic/kernel/sound/usb/caiaq/snd-usb-caiaq.ko lib/modules/2.6.28-11-generic/kernel/sound/usb/snd-usb-audio.ko lib/modules/2.6.28-11-generic/kernel/sound/usb/snd-usb-lib.ko lib/modules/2.6.28-11-generic/kernel/sound/usb/usx2y/snd-usb-us122l.ko lib/modules/2.6.28-11-generic/kernel/sound/usb/usx2y/snd-usb-usx2y.ko]
ProcCmdLine: root=UUID=f160c37f-3088-47a9-ba06-ba0f8c523094 ro quiet splash
ProcEnviron:
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-11.42-generic
SourcePackage: linux

[bofphile (bofphile)]

And for the freeze with caps lock blinking, the error seems different in kern.log:

Jun 11 21:59:12 chakib-laptop kernel: [ 680.864105] BUG: unable to handle kernel paging request at fffff700000affff
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864117] IP: [<ffffffff802e236c>] kmem_cache_alloc+0x5c/0xc0
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864131] PGD 0
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864136] Oops: 0000 [#1] SMP
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864142] last sysfs file: /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/rfkill/rfkill2/state
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864150] Dumping ftrace buffer:
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864155] (ftrace buffer empty)
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864158] CPU 1
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864162] Modules linked in: snd_usb_audio snd_usb_lib aes_x86_64 aes_generic i915 drm binfmt_misc ppdev bridge stp bnep input_polldev lp parport joydev snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq iwlagn iwlcore snd_timer snd_seq_device mac80211 pcmcia zaurus uvcvideo snd thinkpad_acpi cdc_ether compat_ioctl32 led_class usbnet psmouse soundcore cfg80211 videodev v4l1_compat yenta_socket rsrc_nonstatic nvram snd_page_alloc cdc_wdm cdc_acm serio_raw pcspkr ricoh_mmc sdhci_pci sdhci video intel_agp pcmcia_core mii btusb iTCO_wdt iTCO_vendor_support output ohci1394 ieee1394 e1000e fbcon tileblit font bitblit softcursor
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864274] Pid: 4088, comm: firefox Not tainted 2.6.28-11-generic #42-Ubuntu
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864278] RIP: 0010:[<ffffffff802e236c>] [<ffffffff802e236c>] kmem_cache_alloc+0x5c/0xc0
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864287] RSP: 0018:ffff8801225a5da8 EFLAGS: 00010086
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864292] RAX: 0000000000000000 RBX: fffff700000affff RCX: 00000000ffffffff
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864296] RDX: ffff88002803df40 RSI: 00000000000000d0 RDI: 0000000000000200
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864301] RBP: ffff8801225a5dd8 R08: 0000000000000000 R09: 000000000000012c
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864305] R10: 0000000000000001 R11: 0000000000000206 R12: 0000000000000282
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864309] R13: ffffffff809b3e28 R14: ffffffff805ad074 R15: 00000000000000d0
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864315] FS: 00007f2d17e0e950(0000) GS:ffff88013b802d80(0000) knlGS:0000000000000000
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864320] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864324] CR2: fffff700000affff CR3: 000000012244c000 CR4: 00000000000406a0
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864329] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864333] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jun 11 21:59:12 chakib-laptop kernel: [ 680.864338] Process firef...

[ReneS (mail-03146f06)]

I see exactly the same behavior on my new Lenovo Thinkpad T500, running:
Linux linpicard 2.6.28-13-generic #44-Ubuntu SMP Tue Jun 2 07:55:09 UTC 2009 x86_64 GNU/Linux

[bofphile (bofphile)]

Ever since I installed kernel 2.6.30 (2.6.30-020630-generic) from here: http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.30/ I did not experience any freeze.

[bofphile (bofphile)]

I just had a freeze with kernel 2.6.30 , while doing the usual thing (browsing the web while listening to some music). I'm connected to my router by WiFi. Maybe I should try Jaunty 32 bit to see if this also happens.

[bofphile (bofphile)]

Since a few weeks, I've installed Jaunty 32bit and did not have any freeze. So maybe the problem lies with Jaunty 64bit ?

[ReneS (mail-03146f06)]

I installed kernel 2.6.30 and the problem was gone for me. No freezes anymore and I am running 64bit.

Linux computername 2.6.30-020630-generic #020630 SMP Wed Jun 10 09:04:38 UTC 2009 x86_64 GNU/Linux

[Marius (mm473)]

Same problem for me on Thinkpad T400 with 2.6.28.13 kernel 64bit, with pretty much identical log files. Actually, the 2.6.28.13 kernel is much more stable for me (maybe 1 freeze per few days) vs the 2.6.28.14 and 2.6.28.15 kernels (every few hours it seems). Maybe you guys could try installing 13 and see if things get better as a way to trace this bug. It should be easy, these are all in the Ubuntu repositories. I'll try 2.6.30.* and see if that fixes the problem too.

[TobiasDomhan (tdomhan)]

having identical problems with my acer aspire 5920g and an the 64bit kernel 2.6.28-15-generic. system is randomly freezing around once every few days.

[thom (tsk)]

2.6.28-16-generic #55-Ubuntu SMP Tue Oct 20 19:48:24 UTC 2009 i686

random freezes since kernel update

[Jeremy Foshee (jeremyfoshee)]

Hi bofphile,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 386973

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[ReneS (mail-03146f06)]

I have not seen that since 2.6.30. Running Ubuntu 9.10 with 2.6.32.09 on T500.

[bofphile (bofphile)]

Ever since I installed Karmic 64bit, I did not have any crash or freeze whatsoever. This bug is no longer an issue for me.