Bug 103900

Summary:	[SUMO][TURKS] Launching War Thunder make GPU stuck, and then system is hard lockup
Product:	Mesa	Reporter:	russianneuromancer
Component:	Drivers/Gallium/r600	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED MOVED	QA Contact:	Default DRI bug account <dri-devel>
Severity:	normal
Priority:	medium
Version:	17.3
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	GPU lockup dmesg

Description russianneuromancer 2017-11-25 07:41:47 UTC

Hello!

Launching War Thunder make GPU stuck, and then system is hard lockup. This issue is starting to happen after upgrade from Mesa 17.2.2 with libdrm 2.4.83 to 17.3.0rc4 with libdrm 2.4.85 (from Padoka Stable PPA https://launchpad.net/~paulo-miguel-dias/+archive/ubuntu/pkppa ) on Kubuntu 17.10 x86_64. As soon as I rollback to Mesa 17.2.2 and libdrm 2.4.83, GPU lockup is no longer reproducible, but then there is another issue: bug 100387

Issue is reproducible on both of iGPU and dGPU. Please look into attached log.

Hardware: 
Acer Aspire 7560G, AMD A8-3500M
AMD Radeon HD 6620G iGPU, AMD Radeon HD 6650M dGPU.

Software:
Kubuntu 17.10 x86_64, Linux 4.14.1.
radeon DDX and modesetting DDX was tested, no difference.

Comment 1 russianneuromancer 2017-11-25 07:42:55 UTC

Created attachment 135708 [details]
GPU lockup dmesg

Comment 2 aceman 2017-11-25 11:49:52 UTC

Yes I can confirm this on Radeon HD 4350. Even the game itself shows a dialog about hangup, but then the GPU is hung for a while. I think it restarts eventually and takes down the X server (and KDE session). But then I can normally login to KDE again.

Comment 3 rene 2018-01-25 18:54:23 UTC

After turning off shader optimization with R600_DEBUG=nosb 
War Thunder works and doesn't crash.

Comment 4 mirh 2018-12-21 23:26:42 UTC

There was quite of an improvement in sb, in the last couple of mesa releases (even though bug 105371 would make me hesitant to say now it's 100% fixed)

Does war thunder work then in 18.3?

Comment 5 Syfer Polski 2019-03-27 15:19:17 UTC

Based on https://forum.warthunder.com/index.php?/topic/422637-game-crashes-before-going-into-hangar/&do=findComment&comment=8058647, I seems like this bug hasn't been fixed(although the user in question didn't supply their version of Mesa).

A user in the linked source supplied the following system specifications:
Dell Precision M4600
Ubuntu 18.04.2
i7 2720QM CPU @ 2.20GHz x 8
32GB RAM
GPU AMD Turks (FirePro M5950)

The default version of Mesa in Ubuntu 18.04 is 18.0.0rc5.

Comment 6 GitLab Migration User 2019-09-18 19:24:42 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/619.

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