[Bug 28622] New: radeon video lookup

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=28622

           Summary: radeon video lookup
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.37
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri at kernel-bugs.osdl.org
        ReportedBy: bugzilla.kernel.org at poelzi.org
        Regression: No


Radeon got very unstable from 2.6.36 to 2.6.37 on my system. This is at least
one lockup I'm having when swtiching X Servers. KMS is enabled. Disable KMS
will crash video in like 30-300 seconds.

[81121.199055] INFO: task Xorg:1791 blocked for more than 120 seconds.
[81121.199059] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[81121.199061] Xorg          D ffff8801261549d8     0  1791   1743 0x00400004
[81121.199066]  ffff880123b4bb78 0000000000000082 ffff880123b4bd70
0000000000000000
[81121.199069]  00000000000139c0 ffff880126154640 ffff8801261549d8
ffff880123b4bfd8
[81121.199072]  ffff8801261549e0 00000000000139c0 ffff880123b4a010
00000000000139c0
[81121.199076] Call Trace:
[81121.199083]  [<ffffffff8115e687>] ? inode_init_always+0x1c7/0x1d0
[81121.199088]  [<ffffffff815671e7>] __mutex_lock_slowpath+0xf7/0x180
[81121.199091]  [<ffffffff815670cb>] mutex_lock+0x2b/0x50
[81121.199127]  [<ffffffffa0157924>] radeon_bo_create+0x114/0x2c0 [radeon]
[81121.199146]  [<ffffffffa016d30b>] radeon_gem_object_create+0x8b/0x110
[radeon]
[81121.199163]  [<ffffffffa016d3e8>] radeon_gem_create_ioctl+0x58/0xd0 [radeon]
[81121.199180]  [<ffffffffa00458d3>] drm_ioctl+0x433/0x4f0 [drm]
[81121.199198]  [<ffffffffa016d390>] ? radeon_gem_create_ioctl+0x0/0xd0
[radeon]
[81121.199202]  [<ffffffff81157a29>] do_vfs_ioctl+0xa9/0x5a0
[81121.199205]  [<ffffffff81157fa1>] sys_ioctl+0x81/0xa0
[81121.199209]  [<ffffffff8100b002>] system_call_fastpath+0x16/0x1b

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