ubuntu-x-swat team mailing list archive

[Andy Whitcroft <apw@xxxxxxxxxxxxx>]

@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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