[PATCH] drm/ttm: fix delayed ttm_bo_cleanup_refs_and_unlock delayed handling

[Markus Trippelsdorf]

On 2012.12.19 at 15:18 +0100, Maarten Lankhorst wrote:
> Fix regression introduced by 85b144f860176

Thanks. This fixes the kernel BUG, but now I get this errors in my
Xorg.log:

[    23.092] [mi] Increasing EQ size to 512 to prevent dropped events.
(EE) [mi] EQ overflowing.  Additional events will be discarded until existing events are processed.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x3d) [0x584f1d]
(EE) 1: /usr/bin/X (mieqEnqueue+0x21b) [0x56615b]
(EE) 2: /usr/bin/X (QueuePointerEvents+0x52) [0x44a792]
(EE) 3: /usr/bin/X (xf86PostButtonEvent+0xd5) [0x4829b5]
(EE) 4: /usr/lib64/xorg/modules/input/mouse_drv.so (0x7ff8f2501000+0x6b70) [0x7ff8f2507b70]
(EE) 5: /usr/lib64/xorg/modules/input/mouse_drv.so (0x7ff8f2501000+0x73a0) [0x7ff8f25083a0]
(EE) 6: /usr/lib64/xorg/modules/input/mouse_drv.so (0x7ff8f2501000+0x428c) [0x7ff8f250528c]
(EE) 7: /usr/bin/X (0x400000+0x71cd8) [0x471cd8]
(EE) 8: /usr/bin/X (0x400000+0x9a2ab) [0x49a2ab]
(EE) 9: /lib/libpthread.so.0 (0x7ff8f1edc000+0xf260) [0x7ff8f1eeb260]
(EE) 10: /lib/libc.so.6 (ioctl+0x7) [0x7ff8f19bd127]
(EE) 11: /usr/lib/libdrm.so.2 (drmIoctl+0x34) [0x7ff8f246a634]
(EE) 12: /usr/lib/libdrm.so.2 (drmCommandWriteRead+0x1f) [0x7ff8f246cbdf]
(EE) 13: /usr/lib/libdrm_radeon.so.1 (0x7ff8f250e000+0x27bf) [0x7ff8f25107bf]
(EE) 14: /usr/lib64/xorg/modules/drivers/radeon_drv.so (0x7ff8f154f000+0x407ec) [0x7ff8f158f7ec]
(EE) 15: /usr/bin/X (_CallCallbacks+0x34) [0x438894]
(EE) 16: /usr/bin/X (FlushAllOutput+0x2c) [0x5880ec]
(EE) 17: /usr/bin/X (0x400000+0x33aa1) [0x433aa1]
(EE) 18: /usr/bin/X (0x400000+0x230cd) [0x4230cd]
(EE) 19: /lib/libc.so.6 (__libc_start_main+0xf5) [0x7ff8f19088b5]
(EE) 20: /usr/bin/X (0x400000+0x22c09) [0x422c09]
(EE)
(EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack.
(EE) [mi] mieq is *NOT* the cause.  It is a victim.
(EE) [mi] EQ overflow continuing.  100 events have been dropped.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x3d) [0x584f1d]
(EE) 1: /usr/bin/X (QueuePointerEvents+0x52) [0x44a792]
(EE) 2: /usr/bin/X (xf86PostButtonEvent+0xd5) [0x4829b5]
(EE) 3: /usr/lib64/xorg/modules/input/mouse_drv.so (0x7ff8f2501000+0x6b70) [0x7ff8f2507b70]
(EE) 4: /usr/lib64/xorg/modules/input/mouse_drv.so (0x7ff8f2501000+0x73a0) [0x7ff8f25083a0]
(EE) 5: /usr/lib64/xorg/modules/input/mouse_drv.so (0x7ff8f2501000+0x428c) [0x7ff8f250528c]
(EE) 6: /usr/bin/X (0x400000+0x71cd8) [0x471cd8]
(EE) 7: /usr/bin/X (0x400000+0x9a2ab) [0x49a2ab]
(EE) 8: /lib/libpthread.so.0 (0x7ff8f1edc000+0xf260) [0x7ff8f1eeb260]
(EE) 9: /lib/libc.so.6 (ioctl+0x7) [0x7ff8f19bd127]
(EE) 10: /usr/lib/libdrm.so.2 (drmIoctl+0x34) [0x7ff8f246a634]
(EE) 11: /usr/lib/libdrm.so.2 (drmCommandWriteRead+0x1f) [0x7ff8f246cbdf]
(EE) 12: /usr/lib/libdrm_radeon.so.1 (0x7ff8f250e000+0x27bf) [0x7ff8f25107bf]
(EE) 13: /usr/lib64/xorg/modules/drivers/radeon_drv.so (0x7ff8f154f000+0x407ec) [0x7ff8f158f7ec]
(EE) 14: /usr/bin/X (_CallCallbacks+0x34) [0x438894]
(EE) 15: /usr/bin/X (FlushAllOutput+0x2c) [0x5880ec]
(EE) 16: /usr/bin/X (0x400000+0x33aa1) [0x433aa1]
(EE) 17: /usr/bin/X (0x400000+0x230cd) [0x4230cd]
(EE) 18: /lib/libc.so.6 (__libc_start_main+0xf5) [0x7ff8f19088b5]
(EE) 19: /usr/bin/X (0x400000+0x22c09) [0x422c09]
(EE)
(EE) [mi] EQ overflow continuing.  200 events have been dropped.

And the pictures get distorted on the test-webpage. See attached screenshot.

-- 
Markus
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