Bug 15697 - [i915] Oops: NULL pointer dereference in intel_tv_detect()
Summary: [i915] Oops: NULL pointer dereference in intel_tv_detect()
Status: RESOLVED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - Intel) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_video-dri-intel@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-04-05 10:04 UTC by Milan Bouchet-Valat
Modified: 2010-07-24 09:38 UTC (History)
2 users (show)

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Subsystem:
Regression: No
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Description Milan Bouchet-Valat 2010-04-05 10:04:10 UTC 
This Oops has been reported many times in Ubuntu 9.10. Happens with GM965/GL960 and 945GM/GMS, 943/940GML at least. Very diverse causes.

This may be related with http://bugs.freedesktop.org/show_bug.cgi?id=26974, whose trace is at http://launchpadlibrarian.net/42769271/OopsText.txt.

See http://launchpadlibrarian.net/39537377/OopsText.txt
Original report at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/525801


Call trace:
 [<f868540f>] ? intel_tv_detect+0x8f/0x1c0 [i915]
 [<f8322c46>] ? drm_helper_probe_single_connector_modes+0x296/0x300 [drm_kms_helper]
 [<f84c6e8e>] ? drm_mode_object_find+0x4e/0x70 [drm]
 [<f84c83bf>] ? drm_mode_getconnector+0x2df/0x380 [drm]
 [<f84bd815>] ? drm_ioctl+0x185/0x370 [drm]
 [<c04c64a7>] ? hidinput_hid_event+0x1d7/0x3a0
 [<f84c80e0>] ? drm_mode_getconnector+0x0/0x380 [drm]
 [<c04c64a7>] ? hidinput_hid_event+0x1d7/0x3a0
 [<c02f1c84>] ? security_file_permission+0x14/0x20
 [<c0213e5b>] ? vfs_ioctl+0x7b/0x90
 [<c04c64a7>] ? hidinput_hid_event+0x1d7/0x3a0
 [<c0214159>] ? do_vfs_ioctl+0x79/0x310
 [<c0205750>] ? do_sync_write+0x0/0x100
 [<c0214457>] ? sys_ioctl+0x67/0x80
 [<c04c64a7>] ? hidinput_hid_event+0x1d7/0x3a0
 [<c010344c>] ? syscall_call+0x7/0xb
 [<c04c64a7>] ? hidinput_hid_event+0x1d7/0x3a0
 [<c04c64a7>] ? hidinput_hid_event+0x1d7/0x3a0
Comment 1 Milan Bouchet-Valat 2010-04-05 10:08:16 UTC 
Oh, and kernel version is 2.6.32-19.28 (Ubuntu).
Comment 2 Jesse Barnes 2010-07-23 20:00:25 UTC 
Does this still occur?  I hope not...
Comment 3 Chris Wilson 2010-07-24 09:38:20 UTC 
I am convinced this a hibernate corruption related bug, so will be fixed with the pair of patches by Linus in 2.6.35-rc6.
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