Ubuntu hangs in random moments

[JByteCoder]

Ubuntu 9.04 Linux uriel-laptop 2.6.28-8-generic #24-Ubuntu SMP Wed Feb 18 18:48:55 UTC 2009 i686 GNU/Linux

System hangs, while i'm working in the Eclipse Development Envinorment. the mouse keeps working but every other thing on the screen becomes unresponsive, system reacts only on the magic SysRq combination Alt+SysRq+R, E, B, it started happening after the latest packaged update (if i remember it was 5:00 or 6:00 pm) i've checked out my logs, and found this in kernel log

Feb 19 18:50:14 uriel-laptop kernel: [ 156.028077] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
Feb 19 18:50:14 uriel-laptop kernel: [ 156.030755] mtrr: no MTRR for d0000000,10000000 found
Feb 19 18:58:01 uriel-laptop kernel: [ 623.430029] SysRq : Keyboard mode set to system default

i'll include full kern.log
i hope this helps solving it quicly

i'll try on running with xorg.conf option noMTRR and see if it helps

[JByteCoder (jbytecoder)]

After restart with NoMTRR, i've run glxgears (it didn't impact performance) and then looked into kern.log again, at the end i found

Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383696] WARNING: at /build/buildd/linux-2.6.28/drivers/gpu/drm/i915/i915_gem.c:2475 i915_gem_idle+0x3a8/0x3d0 [i915]()
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383700] Modules linked in: i915 drm binfmt_misc input_polldev ppdev sbp2 parport_pc lp parport joydev arc4 ecb rt73usb crc_itu_t rt2x00usb rt2x00lib led_class snd_hda_intel mac80211 snd_pcm_oss snd_mixer_oss pcmcia cfg80211 snd_pcm sdhci_pci ohci1394 pcspkr psmouse sdhci serio_raw ieee1394 yenta_socket rsrc_nonstatic pcmcia_core snd_seq_dummy snd_seq_oss snd_seq_midi iTCO_wdt iTCO_vendor_support ehci_hcd snd_rawmidi snd_seq_midi_event r8169 mii snd_seq uhci_hcd snd_timer snd_seq_device snd soundcore snd_page_alloc video output intel_agp agpgart fbcon tileblit font bitblit softcursor fuse
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383765] Pid: 3411, comm: Xorg Not tainted 2.6.28-8-generic #24-Ubuntu
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383768] Call Trace:
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383778] [<c04ea0c1>] ? printk+0x18/0x1f
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383784] [<c013aa84>] warn_on_slowpath+0x54/0x80
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383803] [<f817f594>] ? drm_gem_object_free+0x44/0x50 [drm]
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383813] [<f817f550>] ? drm_gem_object_free+0x0/0x50 [drm]
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383819] [<c02bfafd>] ? kref_put+0x2d/0x70
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383826] [<f81b0629>] ? i915_gem_retire_requests+0xf9/0x150 [i915]
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383832] [<f81b0629>] ? i915_gem_retire_requests+0xf9/0x150 [i915]
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383839] [<f81b26f8>] i915_gem_idle+0x3a8/0x3d0 [i915]
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383846] [<f81b2764>] i915_gem_leavevt_ioctl+0x14/0x30 [i915]
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383857] [<f817e1f0>] drm_ioctl+0xe0/0x2e0 [drm]
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383864] [<f81b2750>] ? i915_gem_leavevt_ioctl+0x0/0x30 [i915]
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383877] [<c01caf99>] vfs_ioctl+0x79/0x90
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383881] [<c01cb42e>] do_vfs_ioctl+0x5e/0x200
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383886] [<c014038f>] ? irq_exit+0x3f/0x90
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383889] [<c01cb633>] sys_ioctl+0x63/0x70
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383893] [<c0103f6b>] sysenter_do_call+0x12/0x2f
Feb 19 19:19:14 uriel-laptop kernel: [ 1252.383896] ---[ end trace 8a44b2c91d5c7020 ]---
Feb 19 19:19:15 uriel-laptop kernel: [ 1252.504423] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
Feb 19 19:19:15 uriel-laptop kernel: [ 1252.506725] mtrr: no MTRR for d0000000,10000000 found

but system didn;t hang at all

[Jeremy Foshee (jeremyfoshee)]

Hi JByteCoder,

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/lucid.

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 331685

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.]

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

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