[Bug 81623] Intel DRI3 driver hangs WebKitGTK

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81623

--- Comment #9 from Carsten Haitzler <raster at rasterman.com> ---
i see similar problems in recent mesa releases (last month or 2). my bt is
missing symbols but it's the same idea - mesa gets stuck in a "get something
from x" and never gets the reply. until 10.3.2 i could vt switch to text
console and back to unstick it. this now no longer works to unstick. my bt is:

#6  0x00007f8d73c4a5bd in poll () from /usr/lib/libc.so.6
#7  0x00007f8d70c919f2 in ?? () from /usr/lib/libxcb.so.1
#8  0x00007f8d70c932ff in ?? () from /usr/lib/libxcb.so.1
#9  0x00007f8d70c93411 in xcb_wait_for_reply () from /usr/lib/libxcb.so.1
#10 0x00007f8d77dfe7c7 in _XReply () from /usr/lib/libX11.so.6
#11 0x00007f8d6d91c7f3 in ?? () from /usr/lib/libGL.so.1
#12 0x00007f8d6d919ef9 in ?? () from /usr/lib/libGL.so.1
#13 0x00007f8d6b426289 in ?? () from /usr/lib/xorg/modules/dri/i965_dri.so
#14 0x00007f8d6b4267a5 in ?? () from /usr/lib/xorg/modules/dri/i965_dri.so
#15 0x00007f8d6b42b674 in ?? () from /usr/lib/xorg/modules/dri/i965_dri.so
#16 0x00007f8d6b282dce in ?? () from /usr/lib/xorg/modules/dri/i965_dri.so
#17 0x00007f8d6be1ba2b in shader_array_flush (gc=0x1fac4e0) at
modules/evas/engines/gl_common/evas_gl_context.c:3270

that's a glDrawArrays() fyi. there that is called. yes the #6 on the bt stack
is due to me forcing a segv (killall -SEGV) to get a bt automatically out of my
wm. #6 is where it is stuck until i segv it.

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