Bug 95187

Summary: i915 stuck on kernel ring on 4.6.rc5 on Skylake 6700HQ
Product: DRI Reporter: 13t8Pm490DD44eZ <harry_x>
Component: DRM/IntelAssignee: Chris Wilson <chris>
Status: CLOSED DUPLICATE QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: XOrg git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: SKL i915 features: GPU hang
Attachments:
Description Flags
error
none
dmesg
none
lspci none

Description 13t8Pm490DD44eZ 2016-04-28 13:42:26 UTC
Created attachment 123321 [details]
error

Acer VN7-592G machine
Happened after heavy IO load.
Didn't se that happen with previous 4.6 rc (but could be unrelated).
Comment 1 13t8Pm490DD44eZ 2016-04-28 13:42:47 UTC
Created attachment 123322 [details]
dmesg
Comment 2 13t8Pm490DD44eZ 2016-04-28 13:42:59 UTC
Created attachment 123323 [details]
lspci
Comment 3 13t8Pm490DD44eZ 2016-04-29 11:07:27 UTC
Downgrading xf86-video-intel helped:

(1:2.99.917+636+g562ae1f-1 -> 1:2.99.917+587+gc186d4d-1)

Now it doesn't happen anymore
Comment 4 yann 2016-09-05 08:26:34 UTC
Duplicate based on gpu crash dump.

Hung happening on SKL in render batch, IPEHR: 0x7b000005 and batch extract around ACTHD: 0x00000000 ff02c5b8

0xff02c598:      0x78090005: 3DSTATE_VERTEX_ELEMENTS
0xff02c59c:      0x02000000:    buffer 0: invalid, type 0x0000, src offset 0x0000 bytes
0xff02c5a0:      0x22220000:    (0.0, 0.0, 0.0, 0.0), dst offset 0x00 bytes
0xff02c5a4:      0x02f60000:    buffer 0: invalid, type 0x00f6, src offset 0x0000 bytes
0xff02c5a8:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
0xff02c5ac:      0x02f60004:    buffer 0: invalid, type 0x00f6, src offset 0x0004 bytes
0xff02c5b0:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
Bad length 7 in (null), expected 6-6
0xff02c5b4:      0x7b000005: 3DPRIMITIVE: fail sequential
0xff02c5b8:      0x00000000:    vertex count
0xff02c5bc:      0x00000018:    start vertex
0xff02c5c0:      0x00000144:    instance count
0xff02c5c4:      0x00000001:    start instance
0xff02c5c8:      0x00000000:    index bias
0xff02c5cc:      0x00000000: MI_NOOP

*** This bug has been marked as a duplicate of bug 95145 ***

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