Hi. I left memtest running for a few hours and nothing came up. Looking at the disassembly of the file: 4b6166: f3 0f 11 7c 24 88 movss %xmm7,-0x78(%rsp) 4b616c: 8b 41 04 mov 0x4(%rcx),%eax and comparing to the valgrind output unhandled instruction bytes: 0xFB 0xF 0x11 0x7C 0x24 0x88 0x8B 0x41 0x4 0...

OK, After a reboot the problem goes away. This is strange as it feels like the binary was temporarily corrupted. This is either a kernel bug or a memory issue but unlikely a factorio issue.

Running 0.028 2017-05-11 18:18:02; Factorio 0.15.10 (build 29654, linux64, alpha) I'm got a segfault during a game and the autosave for a minute earlier can reproduce it immediately upon loading. #3 0x00007fb66d730990 in ?? at ??:0 #4 0x00000000004b6166 in SpriteDrawOrder::SpriteDrawOrder(Sprite con...

Hi

Annoyingly I can't reproduce it now after a reboot. Perhaps it is an X issue. Ignore for now. If i can get it to happen again I will respond.

Crash can be reproduced by loading savefile and running North for about 2 seconds 0.000 2016-11-06 11:22:07; Factorio 0.14.19 (build 25291, linux64, alpha) 0.036 Operating system: Linux (Fedora 24) 0.036 Program arguments: "Downloads/factorio/bin/x64/factorio" 0.036 Read data path: /home/b...