Created attachment 143258 [details] This is /sys/class/drm/card0/error I was using Xilinx ISE 10.1 SP3 (x86_64) on my Arch Linux machine. I was drawing a wire while the user interface suddenly froze. I tried switching tabs (I'm using i3 as windows manager) but nothing happened. Then after a few seconds everything is back to normal. I checked the kernel log by typing dmesg, and discovered the following message. I thought it might be good to file a bug report. [24917.579505] [drm] GPU HANG: ecode 9:0:0x86dffffd, in Xorg [669], reason: hang on rcs0, action: reset [24917.579506] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [24917.579507] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [24917.579507] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [24917.579508] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [24917.579508] [drm] GPU crash dump saved to /sys/class/drm/card0/error
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