[Bug 25990] New: Random lockups (Mobility HD 3400)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=25990

           Summary: Random lockups (Mobility HD 3400)
           Product: xorg
           Version: git
          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: dottedmag at dottedmag.net
         QAContact: xorg-team at lists.x.org


Hardware environment: Thinkpad T400
Software environment: Ubuntu Karmic + kernel from Lucid + xorg-edgers
Software versions:
  kernel 2.6.23-9 (lucid)
  X server 1.7.99.2~git20091130.99d88ef6
  libdrm 2.4.17+git20091230.c5c503b5
  mesa 7.8.0~git20100107.d699b672
  xf86-video-intel 2.10.0+git20100108.4902f546

I'm experiencing random lockups with radeon at unpredictable occasions (mostly
after some keypress). X server busyloops trying to ioctl /dev/dri/card0 (which
returns with -EBUSY), the following is in dmesg (repeated):

[90143.665813] [drm:radeon_ib_get] *ERROR* radeon: IB(8:0x0000000010181000:0)
[90143.665817] [drm:radeon_ib_get] *ERROR* radeon: GPU lockup detected, fail to
get a IB
[90143.665819] [drm:radeon_cs_ioctl] *ERROR* Failed to get ib !

And the following backtrace is in Xorg.0.log:

[mi] EQ overflowing. The server is probably stuck in an infinite loop.

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x3b) [0x80a403b]
1: /usr/bin/X (mieqEnqueue+0x1ab) [0x80a1c0b]
2: /usr/bin/X (xf86PostMotionEventP+0xcc) [0x80b2cec]
3: /usr/lib/xorg/modules/input/evdev_drv.so (0xb70b5000+0x3141) [0xb70b8141]
4: /usr/lib/xorg/modules/input/evdev_drv.so (0xb70b5000+0x33e9) [0xb70b83e9]
5: /usr/bin/X (0x8048000+0x692ff) [0x80b12ff]
6: /usr/bin/X (0x8048000+0x120cb4) [0x8168cb4]
7: (vdso) (__kernel_sigreturn+0x0) [0xb78ad400]
8: /usr/lib/libdrm.so.2 (drmCommandWriteRead+0x3b) [0xb744304b]
9: /usr/lib/libdrm_radeon.so.1 (0xb7458000+0x11fa) [0xb74591fa]
10: /usr/lib/libdrm_radeon.so.1 (0xb7458000+0x124d) [0xb745924d]
11: /usr/lib/libdrm_radeon.so.1 (radeon_bo_map+0x1b) [0xb745a99b]
12: /usr/lib/xorg/modules/drivers/radeon_drv.so (0xb734e000+0xa48b6)
[0xb73f28b6]
13: /usr/lib/xorg/modules/libexa.so (0xb731c000+0x3713) [0xb731f713]
14: /usr/lib/xorg/modules/libexa.so (0xb731c000+0x652c) [0xb732252c]
15: /usr/lib/xorg/modules/libexa.so (0xb731c000+0x3802) [0xb731f802]
16: /usr/lib/xorg/modules/libexa.so (0xb731c000+0xf1f2) [0xb732b1f2]
17: /usr/bin/X (miImageText8+0x87) [0x81a5d57]
18: /usr/bin/X (0x8048000+0xedf0e) [0x8135f0e]
19: /usr/bin/X (doImageText+0x1ed) [0x80989cd]
20: /usr/bin/X (ImageText+0x7f) [0x8098bff]
21: /usr/bin/X (0x8048000+0x2f02e) [0x807702e]
22: /usr/bin/X (0x8048000+0x30b27) [0x8078b27]
23: /usr/bin/X (0x8048000+0x1f385) [0x8067385]
24: /lib/tls/i686/cmov/libc.so.6 (__libc_start_main+0xe6) [0xb75a2b56]
25: /usr/bin/X (0x8048000+0x1ef71) [0x8066f71]

Full dmesg, Xorg.0.log and lspci are attached.


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