@Chris -- I had a quick look at the bug the patch above relates to
(below) where you indicate the command is split by the buffer wrap in
the first trace:
https://bugs.freedesktop.org/show_bug.cgi?id=22336
Looking at the first trace on that bug the ring buffer looks as below:
ringbuffer at 0x00000000:
0x00000000: 0x02000004: MI_FLUSH
[...]
0x0001fff4: 0x01000000: MI_USER_INTERRUPT
0x0001fff8: 0x18800180: MI_BATCH_BUFFER_START
0x0001fffc: 0x0fa15000: dword 1
If we look at both of the dumps I have:
ringbuffer at 0x00000000:
0x00000000: 0x18800180: MI_BATCH_BUFFER_START
0x00000004: 0x08000000: dword 1
0x00000008: 0x02000004: MI_FLUSH
[...]
0x0001fff0: 0x10800001: MI_STORE_DATA_INDEX
0x0001fff4: 0x00000080: dword 1
0x0001fff8: 0x001b8c80: dword 2
0x0001fffc: 0x01000000: MI_USER_INTERRUPT
and:
ringbuffer at 0x00000000:
0x00000000: 0x02000004: MI_FLUSH
[...]
0x0001fff4: 0x01000000: MI_USER_INTERRUPT
0x0001fff8: 0x18800180: MI_BATCH_BUFFER_START
0x0001fffc: 0x09f85000: dword 1
I am unsure about the first of these but cirtainly the second appears
identicle over the buffer wrap? Could this be the same issue?
** Bug watch added: freedesktop.org Bugzilla #22336
https://bugs.freedesktop.org/show_bug.cgi?id=22336
--
[GM45E] i915 graphics corruption and hang
https://bugs.launchpad.net/bugs/429241
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which is the registrant for xf86-video-intel.
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