https://bugs.freedesktop.org/show_bug.cgi?id=81907
Priority: medium Bug ID: 81907 Assignee: dri-devel@lists.freedesktop.org Summary: Unreal Engine "Effects Cave" Demo crashes in __memcpy_sse2_unaligned Severity: normal Classification: Unclassified OS: All Reporter: haagch@frickel.club Hardware: Other Status: NEW Version: git Component: Drivers/Gallium/radeonsi Product: Mesa
Created attachment 103673 --> https://bugs.freedesktop.org/attachment.cgi?id=103673&action=edit full backtrace
llvm-svn 214022 mesa git master from today without f4b0ab7afd83c811329211eae8167c9bf238870c linux 3.16-rc7
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wimbledon XT [Radeon HD 7970M] (rev ff)
intel with render nodes, tearfree and DRI3 and I run it with DRI_PRIME=1.
Because of bug 81834 I reverted f4b0ab7afd83c811329211eae8167c9bf238870c.
Now I get this crash in the "Effects Cave" demo of the unreal engine. More rarely (?) I get bug 80880 instead/first. In other demos (perhaps less complex) like TappyChicken I always get bug 80880 and never (?) this crash here:
0x00007ffff6a15859 in __memcpy_sse2_unaligned () from /usr/lib/libc.so.6
It seems to run for a few seconds, the music is playing, but the window contents are black (it seems nothing at all is rendered, sometimes there are white stripes that do not vanish until it crashes). Then it crashes with the attached backtrace.
The "binary" struct seem to be always one of the same few. Others are:
binary = {code = 0x7fffb9ced270 "~\n\376\276\t\003\374\276\002\003\002\310\002\002\006\310\001\001", code_size = 76, config = 0x7fffb9cf1a90 "(\260", config_size = 24, rodata = 0x0, rodata_size = 0, disassembled = 0}
and
binary = {code = 0x7fffb9f85a10 "~\n\376\276\t", <incomplete sequence \374\276>, code_size = 4160, config = 0x7fffb9e33840 "(\260", config_size = 24, rodata = 0x0, rodata_size = 0, disassembled = 0}