Bug 101187

Summary: drm stuck on render ring
Product: DRI Reporter: chenlizhou <185271324>
Component: DRM/iGVT-gAssignee: Weinan Li <weinan.z.li>
Status: RESOLVED WORKSFORME QA Contact: Terrence Xu <terrence.xu>
Severity: normal    
Priority: medium CC: chuanxiao.dong
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg output
none
/sys/class/drm/card0/error none

Description chenlizhou 2017-05-25 12:58:55 UTC 
My host OS is centos7.3.
When start VM with KVMGT bu did not work.

uname -a :
Linux localhost.localdomain 4.3.0-rc6-vgt+ #2 SMP Thu May 25 03:20:03 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux

dmesg :
[    1.346718] [drm] Initialized drm 1.1.0 20060810
[    2.959335] [drm] Virtual GPU for Intel GVT-g detected.
[    2.959961] [drm] Memory usable by graphics device = 4096M
[    2.960552] [drm] Replacing VGA console driver
[   98.970262] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   98.970466] [drm] Driver supports precise vblank timestamp query.
[   99.013552] [drm] VGT ballooning configuration:
[   99.013744] [drm] Mappable graphic memory: base 0x0 size 98304KiB
[   99.013978] [drm] Unmappable graphic memory: base 0x10000000 size 393216KiB
[   99.014248] [drm] balloon space: range [ 0x28000000 - 0xfffff000 ] 3538940 KiB.
[   99.014582] [drm] balloon space: range [ 0x6000000 - 0x10000000 ] 163840 KiB.
[   99.014701] [drm] VGT balloon successfully
[   99.072665] [drm] Initialized i915 1.6.0 20151010 for 0000:00:02.0 on minor 0
[   99.196066]  [<ffffffffa0113247>] drm_atomic_commit+0x37/0x60 [drm]
[  100.560671] [drm] RC6 on
[  388.517792] [drm] stuck on render ring
[  390.851502] [drm] GPU HANG: ecode 9:0:0x00000000, in gnome-shell [5718], reason: VGT device reset, action: reset
[  390.851832] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[  390.852143] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[  390.852500] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[  390.852839] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[  390.853045] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  395.527120] [drm] RC6 on
Comment 1 chenlizhou 2017-05-25 12:59:26 UTC 
Created attachment 131508 [details]
dmesg output
Comment 2 chenlizhou 2017-05-25 13:02:29 UTC 
Created attachment 131509 [details]
/sys/class/drm/card0/error
Comment 3 Chuanxiao Dong 2017-06-01 07:38:59 UTC 
Hello chenlizhou,

We are working on the gvt-staging source code which is already based on 4.12. Did you backport the GVT source code from 4.12 to 4.3.0-rc6+ by yourself?

Is it possible to directly try our gvt-staging kernel instead of backporting? We have a wiki for how to setup: https://github.com/01org/gvt-linux/wiki/GVTg_Setup_Guide

And what test did you run to reproduce this issue?
Comment 4 Weinan Li 2017-07-14 02:35:32 UTC 
Long time no response, request to close. if you still have this issue, please reopen it and help to share update information. thanks.

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