[Bug 96743] [BYT, HSW, SKL, BXT, KBL] GPU hangs with GfxBench 4.0 CarChase

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Sep 1 14:33:19 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=96743

--- Comment #53 from Topi Pohjolainen <topi.pohjolainen at intel.com> ---
I wanted to take a closer look on things in kernel and hence compiled
drm-intel/master. That gives me a lot less "garbage" well inside the batch.

0x19c7bc20:  0xc1c7182d : Dword 4
    Dispatch GRF Start Register For URB Data: 28
    Vertex URB Entry Read Length: 35
    Vertex URB Entry Read Offset: 2
0x19c7bc24:  0x409e289e : Dword 5
    Maximum Number of Threads: 32
    Statistics Enable: false
    Vertex Cache Disable: true
    Enable: false
unknown instruction 41c446cd
0x19c7bf64:  0x00000000:  MI_NOOP                                               
    Identification Number Register Write Enable: false
    Identification Number: 0
0x19c7bf68:  0x00000000:  MI_NOOP                                               
    Identification Number Register Write Enable: false
    Identification Number: 0
0x19c7bf6c:  0x00000000:  MI_NOOP                                               
    Identification Number Register Write Enable: false
    Identification Number: 0
0x19c7bf70:  0x781f000c:  3DSTATE_SBE

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