Bug 89044

Summary: [ilk batchbuffer corruption] X server freezes on tiling windows by dragging in XFCE
Product: DRI Reporter: yuszuv
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED WORKSFORME QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs, yuszuv
Version: XOrg git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: ILK i915 features: GPU hang
Attachments:
Description Flags
/sys/class/drm/card0/error none

Description yuszuv 2015-02-09 17:50:57 UTC 
Created attachment 113284 [details]
/sys/class/drm/card0/error

I've installed Xubuntu 14.04 and when I try to tile a window in my XFCE session by dragging it to the edge of the screen, my X server freezes (but even killing X doesn't end the freeze). And it doesn't always freeze the first time I try to do it, and it doesn't always freeze with any window. When I tile my windows by keyboard, it seems like I can't reproduce it.

I file this bug report here because /var/log/syslog told me to, as it told me to attach the stack trace.
Comment 1 yuszuv 2015-02-09 17:54:25 UTC 
What I did forget to mention: it's a Thinkpad T410 with Intel HD Graphics 5700MHD
Comment 2 Chris Wilson 2015-02-09 21:10:08 UTC 
Hmm, another batch buffer corruption. It is with a fairly old kernel and presumably ddx (and mesa), so first it would be nice to test if the issue simply disappears with e.g. kernel v3.19 and xf86-video-intel-2.99.917.
Comment 3 Jani Nikula 2015-10-23 11:58:34 UTC 
Timeout, closing. Please reopen if the problem persists with latest kernels.

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