[TF2] Random Crash Matqueue Segfault

[ibrokemypie]

Getting completely random crashes in tf2 and the only message anywhere is in dmesg, stating MatQueue0[1029]: segfault at 0 ip 00000000f73eb2d9 sp 0000000008519a18 error 6 in libc-2.25.so[f72b8000+1b9000]

[kisak-valve]

Hello @ibrokemypie, please copy your system information from steam (Steam -> Help -> System Information) and put it in a gist, then include a link to the gist in this issue report. In particular, if you can find any CrashIDs or minidumps related to this issue, please include them.

[ibrokemypie]

Gist: https://gist.github.com/ibrokemypie/d2df59ac16f4c0b8b9cffd5a156e4831

No dumps that I can find

Just happened again, here is the last two minutes in everything.log

Aug  3 22:17:13 decimator kernel: IPv4: martian source 192.168.1.255 from 192.168.1.27, on dev enp3s0
Aug  3 22:17:13 decimator kernel: ll header: 00000000: ff ff ff ff ff ff bc 5f f4 f9 6f 55 08 00        ......._..oU..
Aug  3 22:17:13 decimator kernel: IPv4: martian source 192.168.1.255 from 192.168.1.27, on dev enp3s0
Aug  3 22:17:13 decimator kernel: ll header: 00000000: ff ff ff ff ff ff bc 5f f4 f9 6f 55 08 00        ......._..oU..
Aug  3 22:17:54 decimator kernel: IPv4: martian source 192.168.1.255 from 192.168.1.27, on dev enp3s0
Aug  3 22:17:54 decimator kernel: ll header: 00000000: ff ff ff ff ff ff bc 5f f4 f9 6f 55 08 00        ......._..oU..
Aug  3 22:18:00 decimator dbus[1761]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Aug  3 22:18:00 decimator dbus[1761]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Aug  3 22:18:00 decimator nm-dispatcher[5616]: req:1 'connectivity-change': new request (1 scripts)
Aug  3 22:18:00 decimator nm-dispatcher[5616]: req:1 'connectivity-change': start running ordered scripts...
Aug  3 22:18:19 decimator kernel: MatQueue0[5153]: segfault at 8 ip 00000000f4a05880 sp 0000000005046f00 error 4 in i965_dri.so[f45fe000+7a7000]

[ibrokemypie]

MatQueue0[8758]: segfault at 0 ip 00000000f742e2d9 sp 0000000006bc1a18 error 6 in libc-2.25.so[f72fb000+1b9000]

[mastercoms]

Try r_queued_decals 0.

[ibrokemypie]

in the game console?
entered that before joining a server, still crashed
[ 2355.978074] MatQueue0[5630]: segfault at 0 ip 00000000f4a02bd6 sp 0000000006d46de0 error 6 in i965_dri.so[f4603000+7a7000]

[kisak-valve]

Crashing in i965_dri.so hints that this is a video driver issue, and should be brought to the attention of the driver vendor if it has not been already. Also, this could just be a variation of #2212.

[mastercoms]

What is the value of mat_queue_mode?

[ibrokemypie]

@mastercoms -1

[ibrokemypie]

[11727.500015] MatQueue0[2760]: segfault at 0 ip 00000000f4a9cbd6 sp 0000000008254180 error 6 in i965_dri.so[f469d000+7a7000]
[12060.654944] MatQueue0[12526]: segfault at 0 ip 00000000f73dc2d9 sp 000000000499c9b8 error 6 in libc-2.25.so[f72a9000+1b9000]

[ibrokemypie]

this is also now occuring with amdgpu on my new vega 56, linux 4.15

[13584.511186] MatQueue0[19189]: segfault at 0 ip 00000000be517390 sp 00000000553e7cd1 error 6 in engine.so[ebb9e000+882000]