[Bug 424613] Re: [i945GM] GPU lockup with intel 2:2.8.1-1ubuntu1

[Albert Damen]

This issue was discussed on intel-gfx recently. The ringbuffer wraps
around in the middle of an instruction:

0x0001fff8:      0x10800001: MI_STORE_DATA_INDEX
0x0001fffc:      0x00000080:    dword 1
Buffer size too small in MI_STORE_DATA_INDEX (2 < 3)

A fix has been committed in Eric Anholt's drm-intel-next kernel tree: drm/i915: Pad ringbuffer with NOOPs before wrapping
(commit	0ef82af7253c1929a3995f271b8b0db462d1a0c3)

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[i945GM] GPU lockup with intel 2:2.8.1-1ubuntu1
https://bugs.launchpad.net/bugs/424613
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