[Bug 99561] [SKL] GPU HANG: ecode 9:0:0x85dffffb, in portal2_linux [20076], reason: Hang on render ring, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99561

yann <yann.argotti at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[skl] GPU hang in portal2   |[SKL] GPU HANG: ecode
                   |                            |9:0:0x85dffffb, in
                   |                            |portal2_linux [20076],
                   |                            |reason: Hang on render
                   |                            |ring, action: reset

--- Comment #1 from yann <yann.argotti at intel.com> ---
There were improvements pushed in kernel, xf86-video-intel and Mesa that will
benefit to your system, so please re-test with latest kernel, xf86-video-intel
(in case you use SNA) & Mesa to see if this issue is still occurring. 
Mark as REOPENED if you can reproduce (please capture and upload an apitrace
(https://github.com/apitrace/apitrace) so that we can easily reproduce as
well.) and RESOLVED/* if you cannot reproduce.
In both case, please confirm your environment (see below)


* Details:
- Kernel: 4.8.13-1-ARCH
- Platform: Skylake (PCI ID: 0x1916, PCI Revision: 0x07, PCI Subsystem:
17aa:504a)
- Mesa: [Please confirm your version]
- xf86-video-intel: [Please confirm your version]

>From this error dump, hung is happening in render ring batch with active head
at 0xef313088, with 0x7a000004 (PIPE_CONTROL) as IPEHR.

Batch extract (around 0xef313088):

0xef313014:      0x00000000: MI_NOOP
0xef313018:      0x00000000: MI_NOOP
0xef31301c:      0x78490001: 3D UNKNOWN: 3d_965 opcode = 0x7849
0xef313020:      0x00000001: MI_NOOP
0xef313024:      0x00000000: MI_NOOP
0xef313028:      0x78490001: 3D UNKNOWN: 3d_965 opcode = 0x7849
0xef31302c:      0x00000002: MI_NOOP
0xef313030:      0x00000000: MI_NOOP
0xef313034:      0x78490001: 3D UNKNOWN: 3d_965 opcode = 0x7849
0xef313038:      0x00000003: MI_NOOP
0xef31303c:      0x00000000: MI_NOOP
0xef313040:      0x78490001: 3D UNKNOWN: 3d_965 opcode = 0x7849
0xef313044:      0x00000004: MI_NOOP
0xef313048:      0x00000000: MI_NOOP
0xef31304c:      0x780c0000: 3D UNKNOWN: 3d_965 opcode = 0x780c
0xef313050:      0x00000000: MI_NOOP
Bad length 7 in (null), expected 6-6
0xef313054:      0x7b000005: 3DPRIMITIVE: fail sequential
0xef313058:      0x00000104:    vertex count
0xef31305c:      0x00000fba:    start vertex
0xef313060:      0x00000000:    instance count
0xef313064:      0x00000001:    start instance
0xef313068:      0x00000000:    index bias
0xef31306c:      0x00000000: MI_NOOP
Bad count in PIPE_CONTROL
0xef313070:      0x7a000004: PIPE_CONTROL: no write, no depth stall, no RC
write flush, no inst flush
0xef313074:      0x00101001:    destination address
0xef313078:      0x00000000:    immediate dword low
0xef31307c:      0x00000000:    immediate dword high
Bad count in PIPE_CONTROL
0xef313088:      0x7a000004: PIPE_CONTROL: no write, no depth stall, no RC
write flush, no inst flush
0xef31308c:      0x00000408:    destination address
0xef313090:      0x00000000:    immediate dword low
0xef313094:      0x00000000:    immediate dword high
0xef3130a0:      0x78300000: 3D UNKNOWN: 3d_965 opcode = 0x7830

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