Created attachment 125931 [details] GPU crash dump GPU hangs when using LibreOffice Writer. Always happens every once in a while, while typing. It goes out to lunch for 15 seconds and then comes back when the chip resets. System does not respond at all during that time. I lose the keystrokes in the meantime. It seems to be only on this one document... maybe a weird font rendering issue? Tried adding intel_iommu=igfx_off to boot params but that did not help, so I removed that option for this test. `uname -m` x86_64 `uname -r` 4.6.0-1-rt-amd64 Linux: Debian Stretch Machine: Lenovo X1 Carbon 4th gen Display: Built-in 14" WQHD 2560x1440 IPS, 300 nits Batch buffer: Attached dmesg debug: Attached (using "drm.debug=0x1e log_buf_len=1M") Syslog excerpt: =========================================== Aug 20 13:51:10 walnut kernel: [ 353.815999] [drm] stuck on render ring Aug 20 13:51:10 walnut kernel: [ 353.816385] [drm] GPU HANG: ecode 9:0:0x86dffffd, in Xorg [2650], reason: Ring hung, action: reset Aug 20 13:51:10 walnut kernel: [ 353.816389] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. Aug 20 13:51:10 walnut kernel: [ 353.816392] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel Aug 20 13:51:10 walnut kernel: [ 353.816394] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. Aug 20 13:51:10 walnut kernel: [ 353.816396] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. Aug 20 13:51:10 walnut kernel: [ 353.816398] [drm] GPU crash dump saved to /sys/class/drm/card0/error Aug 20 13:51:10 walnut kernel: [ 353.818723] drm/i915: Resetting chip after gpu hang Aug 20 13:51:12 walnut kernel: [ 355.816648] [drm] RC6 on ===========================================
Created attachment 125932 [details] dmesg output with debug flags
Assigning to Mesa product (please let me know if I am mistaken with this GPU Hang). From this error dump, hung is happening in render ring batch with active head at 0xf7b64504, with 0x79000002 (3DSTATE_DRAWING_RECTANGLE) as IPEHR. Batch extract (around 0xf7b64504): 0xf7b644e8: 0x784e0002: 3D UNKNOWN: 3d_965 opcode = 0x784e 0xf7b644ec: 0x00000000: MI_NOOP 0xf7b644f0: 0x00000000: MI_NOOP 0xf7b644f4: 0x00000000: MI_NOOP 0xf7b644f8: 0x780f0000: 3DSTATE_SCISSOR_POINTERS 0xf7b644fc: 0x000073a0: scissor rect offset 0xf7b64500: 0x79000002: 3DSTATE_DRAWING_RECTANGLE 0xf7b64504: 0x00000000: top left: 0,0 0xf7b64508: 0x04730570: bottom right: 1392,1139 0xf7b6450c: 0x00000000: origin: 0,0 0xf7b64510: 0x784a0000: 3D UNKNOWN: 3d_965 opcode = 0x784a 0xf7b64514: 0x0000c001: MI_NOOP
Created attachment 126120 [details] attachment-15075-0.html May be right. At the time, I did not have libreoffice-gnome or libreoffice-gtk installed, and the whole interface was weird, probably plain mesa. After I installed the gtk interface, I have not been able to reproduce the problem. Thanks. -Mark
Closing bug, please feel free to reopen if it is occurring again.
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