ubuntu-x-swat team mailing list archive

[Geir Ove Myhr <gomyhr@xxxxxxxxx>]

The difference between x86-64 and x86 is not important here. What is
more important is that you have a i945 chipset, and this bug only seems
to happen on i965 and gm45 (which is somewhat a i965+).

This bug always hangs in this batchbuffer:

0x0ad96000:      0x09100000: MI_LOAD_SCAN_LINES_INCL
0x0ad96004:      0x00000384:    dword 1
0x0ad96008:      0x09100000: MI_LOAD_SCAN_LINES_INCL
0x0ad9600c:      0x00000384:    dword 1
0x0ad96010:      0x01800020: MI_WAIT_FOR_EVENT
0x0ad96014: HEAD 0x54f08806: XY_SRC_COPY_BLT (rgb enabled, alpha enabled, src tile 1, dst tile 1)
0x0ad96018:      0x03cc0600:    format 8888, dst pitch 1536, clipping disabled
0x0ad9601c:      0x00000000:    dst (0,0)
0x0ad96020:      0x038405a0:    dst (1440,900)
0x0ad96024:      0x02522000:    dst offset 0x02522000
0x0ad96028:      0x00000000:    src (0,0)
0x0ad9602c:      0x00000600:    src pitch 1536
0x0ad96030:      0x0360e000:    src offset 0x0360e000
0x0ad96034:      0x02000000: MI_FLUSH
0x0ad96038:      0x00000000: MI_NOOP
0x0ad9603c:      0x05000000: MI_BATCH_BUFFER_END

even though most of the automatically reported bugs failed to capture this information. One trace of it is in i915_error_state:
IPEHR: 0x01800020
(the instruction before HEAD in the batchbuffer) and that is not the case in bug 543519.

-- 
[gm45] GPU lockup de05bf80bf83cd22541cb55f1a2ee99e (xorg crash when opening the laptop lid)
https://bugs.launchpad.net/bugs/535640
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