[Bug 93967] [IVB] Hangup and Graphics Reset
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Mar 28 13:03:57 UTC 2017
https://bugs.freedesktop.org/show_bug.cgi?id=93967
--- Comment #5 from yann <yann.argotti at intel.com> ---
Hung is happening in blt ring batch with active head at 0x011f7004:
batchbuffer:
batch buffer (blitter ring (submitted by Xorg [1066])) at 0x00000000_011f7000
0x011f7000: 0x54f08806: XY_SRC_COPY_BLT (rgb enabled, alpha enabled, src
tile 1, dst tile 1)
0x011f7004: 0x03cc0780: format 8888, pitch 1920, rop 0xcc, clipping
disabled,
0x011f7008: 0x035a013d: dst (317,858)
0x011f700c: 0x048c030f: dst (783,1164)
0x011f7010: 0x01ad9000: dst offset 0x01ad9000
0x011f7014: 0x035a013d: src (317,858)
0x011f7018: 0x00000780: src pitch 1920
0x011f701c: 0x0d0df000: src offset 0x0d0df000
0x011f7020: 0x05000000: MI_BATCH_BUFFER_END
Related fences (dst & src):
fence[1] = 23a203b01ad9001
valid, x-tiled, pitch: 7680, start: 0x01ad9000, size: 9216000
fence[5] = d9a803b0d0df001
valid, x-tiled, pitch: 7680, start: 0x0d0df000, size: 9216000
Chris any advice on this hang?
--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
The problem here is a TLB miss (or something like that) as the command the GPU
executed does not match the command we submitted. The error state lacks the
evidence for the usual seqno reordering errors, but it does hint towards VT-d.
Unfortunately, it is too old to include that information explicitly.
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