[Bug 36901] New: kernel oops in radeon code after resume (radeon_gem_object_create)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=36901

           Summary: kernel oops in radeon code after resume
                    (radeon_gem_object_create)
           Product: xorg
           Version: 7.6
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: rizsanyi at users.sourceforge.net
         QAContact: xorg-team at lists.x.org


Created an attachment (id=46393)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=46393)
syslog containing kernel messages during s/r, including the oops

The oops happens after resume once in about 4-5 s/r cycles.

System is a notebook with Radeon X1300 on Debian testing with some packages
upgraded to unstable.

Kernel is latest 2.6.38 from debian.
Radeon driver is 6.14.1
libdrm: 2.4.24-2

When resuming the X display appears for a short time, then the kernel switches
back to the console and prints the oops. In less than a seconds some more
oopses appear usually in code related to the cdrom, moving the original radeon
oops out from the screen. Fortunately by then the oops got written to the
syslog and that is attached.

Here is the oops (also present in the attached syslog):

BUG: unable to handle kernel NULL pointer dereference at 00000001
IP: [<c10b6e0d>] kmem_cache_alloc_trace+0x55/0x92
*pde = 00000000 
Oops: 0000 [#1] SMP 
last sysfs file:
/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3/1-3:3.0/tty/ttyACM0/uevent
Pid: 1955, comm: Xorg Tainted: G        W  O 2.6.38-2-686 #1 Acer TravelMate
6460/Coniston
EIP: 0060:[<c10b6e0d>] EFLAGS: 00213002 CPU: 0
EIP is at kmem_cache_alloc_trace+0x55/0x92
EAX: f5406a18 EBX: 00000001 ECX: 00000054 EDX: 00000000
ESI: f5002100 EDI: f82c250b EBP: 000080d0 ESP: f70f3e08
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process Xorg (pid: 1955, ti=f70f2000 task=f720e080 task.ti=f70f2000)
Stack:
 00203246 00000054 00001000 eec92400 00002000 00002000 f82c250b 00001000
 f51a5a80 f501e000 f84fc25a 00203286 002763ae 00000000 f70f3e98 f51a5a80
 00002000 00000000 f84fc32c 00000004 00000000 00000000 f70f3e68 f82cf274
Call Trace:
 [<f82c250b>] ? drm_gem_object_alloc+0xc/0x51 [drm]
 [<f84fc25a>] ? radeon_gem_object_create+0x27/0xb1 [radeon]
 [<f84fc32c>] ? radeon_gem_create_ioctl+0x48/0x7c [radeon]
 [<f82c0fa4>] ? drm_ioctl+0x224/0x2d5 [drm]
 [<f84fc2e4>] ? radeon_gem_create_ioctl+0x0/0x7c [radeon]
 [<c10bdd4b>] ? do_sync_read+0x9e/0xd3
 [<f82c0d80>] ? drm_ioctl+0x0/0x2d5 [drm]
 [<c10c901c>] ? do_vfs_ioctl+0x478/0x4c3
 [<c11105bc>] ? fsnotify_perm+0x4f/0x5a
 [<c10bd9bb>] ? fsnotify_access+0x48/0x4f
 [<c10be758>] ? vfs_read+0x99/0xd6
 [<c10c90ab>] ? sys_ioctl+0x44/0x64
 [<c1002f1f>] ? sysenter_do_call+0x12/0x28
Code: 04 24 fa 90 8d 74 26 00 8b 06 64 03 05 f4 df 44 c1 8b 18 85 db 75 11 50
89 f9 89 ea 89 f0 e8 6e f9 ff ff 5f 89 c3 eb 08 8b 56 10 <8b> 14 13 89 10 8b 04
24 50 9d 8d 74 26 00 85 db 74 0e 66 85 ed 
EIP: [<c10b6e0d>] kmem_cache_alloc_trace+0x55/0x92 SS:ESP 0068:f70f3e08
CR2: 0000000000000001
---[ end trace 5f481312f8713c89 ]---

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