Bug Report X299 - Turbo Boost Bug - OBS Crash/BSOD - Workaround inside

[ArcadeBulls]

Greetings,

I'd like to report a bug in OBS/Intel Turbo Boost for x299 chipset. I'm using 7820x with Turbo Boost/3.0. Tonight whenever I start encoding stream OBS crashes or and that's even worse Windows gets BSOD.

Someone reported similiar problem with Adobe product on x299 platform. I'm experiencing this issue in OBS Studio, latest version 20.1.1. Important part of log is below, it has something with x264-152 lib.

Temporal fix - Disable Turbo Boost in BIOS.

Unhandled exception: c0000005
Date/Time: 2017-10-30, 20:45:02
Fault address: 7FFFCAB91AE5 (c:\program files (x86)\obs-studio\bin\64bit\libx264-152.dll)
libobs version: 20.1.1
Windows version: 10.0 build 14393 (revision: 1770; 64-bit)
CPU: Intel(R) Core(TM) i7-7820X CPU @ 3.60GHz


Thread 1858 (Crashed)
Stack            EIP              Arg0             Arg1             Arg2             Arg3             Address
000000F25876D670 00007FFFCAB91AE5 0000000000000000 0000000000000000 0000000000000008 0000000000000000 libx264-152.dll!0x7fffcab91ae5
000000F25876D730 00007FFFCAC17CA0 000002C5FC978A78 00007FFFCAC255C1 000002C5FC978AA0 00007FFFCAC252A5 libx264-152.dll!0x7fffcac17ca0
000000F25876F730 00007FFFCAC1A00F 000002C5FC978A00 00000000FFFFFFFE 0000000000000000 00007FFFF040ADDA libx264-152.dll!0x7fffcac1a00f
000000F25876F790 00007FFFCAC24B80 000002C58B687440 0000000000000000 000002C58B687440 0000000000000000 libx264-152.dll!0x7fffcac24b80
000000F25876F7E0 00007FFFCAC24F83 000002C58664E4A0 0000000000000000 0000000000000000 0000000000000000 libx264-152.dll!0x7fffcac24f83
000000F25876F810 00007FFFF040B2BA 00007FFFF0460670 000002C58B687440 0000000000000000 0000000000000000 msvcrt.dll!0x7ffff040b2ba
000000F25876F840 00007FFFF040B38C 0000000000000000 0000000000000000 0000000000000000 0000000000000000 msvcrt.dll!0x7ffff040b38c
000000F25876F870 00007FFFF1EF8364 0000000000000000 0000000000000000 0000000000000000 0000000000000000 kernel32.dll!0x7ffff1ef8364
000000F25876F8A0 00007FFFF2007091 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ntdll.dll!0x7ffff2007091

 

[Harold]

libx264 crashes come down to the following:
1> unstable overclocks
2> failing ram/cpu
3> microcode issues in ryzen processors (not your issue)

 

[Lain]

In 20.1, libx264 was updated to the latest version which includes some new optimizations -- however, these optimizations appear to be a bit unstable in the case of things such as turbo boost or AVX options in the BIOS. It seems a bit random currently. For example, some people seem to be fine while others have this issue. I'm going to continue to monitor the situation.

 

[ArcadeBulls]

Any news on this issue? :(

 

[sam686]

Any news on this issue? :(

Search might have some hints.
https://www.google.com/search?q=turbo+boost+7820x+fix
Based on a search, a few of them might have been able to fix it with BIOS/Motherboard firmware update with motherboard settings reset, others fix it by specific Turbo boost configuration.

This may have also affected another user. https://obsproject.com/forum/threads/obs-bluescreening-all-of-a-sudden.76477/

... I have been streaming before on this same PC with turbo boost enabled and worked fine and all of a sudden turbo boost is causing the bluescreen? It's very odd.