BSOD when playing Fallguys for a short while

hopefulllama · Jun 20, 2021

Hi, I've been experiencing a consistent issue with Fallguys lately, after playing for 5-10 minutes I experience a full computer freeze followed eventually by a restart of the system.

This issue does not happen at any other time, with more or less intensive tasks or games, whereas it happens very consistently with Fallguys.

I've tried to debug this myself, I've run a memory check and updated all drivers, but I'm not very knowledgeable about where to look. Any help would be appreciated.

x BlueRobot · Jun 20, 2021

The Easy Anti-Cheat software appearing to causing issues, I would suggest either removing the software or checking for an update.

Rich (BB code):

4: kd> lmvm EasyAntiCheat
Browse full module list
start             end                 module name
fffff803`bff40000 fffff803`c025b000   EasyAntiCheat T (no symbols)           
    Loaded symbol image file: EasyAntiCheat.sys
    Image path: \??\C:\Program Files (x86)\EasyAntiCheat\EasyAntiCheat.sys
    Image name: EasyAntiCheat.sys
    Browse all global symbols  functions  data
    Timestamp:        Wed Apr 28 09:13:04 2021 (60891910)
    CheckSum:         00323ACB
    ImageSize:        0031B000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4
    Information from resource tables:

Rich (BB code):

4: kd> knL
 # Child-SP          RetAddr           Call Site
00 ffffa18c`b79af218 fffff803`5ca8e02d nt!KeBugCheckEx
01 ffffa18c`b79af220 fffff803`5c928210 nt!MiSystemFault+0x147f6d
02 ffffa18c`b79af320 fffff803`5ca04d5e nt!MmAccessFault+0x400
03 ffffa18c`b79af4c0 fffff803`bff90f12 nt!KiPageFault+0x35e << Crash here!
04 ffffa18c`b79af658 fffff803`c01dfb0d EasyAntiCheat+0x50f12
05 ffffa18c`b79af660 fffff803`61657000 EasyAntiCheat+0x29fb0d
06 ffffa18c`b79af668 fffff803`61664000 0xfffff803`61657000
07 ffffa18c`b79af670 ffffa80f`1c32fa01 0xfffff803`61664000
08 ffffa18c`b79af678 ffffe181`c67c7000 0xffffa80f`1c32fa01
09 ffffa18c`b79af680 fffff803`bff40100 0xffffe181`c67c7000
0a ffffa18c`b79af688 ffffa80f`194853a0 EasyAntiCheat+0x100
0b ffffa18c`b79af690 00000000`00000009 0xffffa80f`194853a0
0c ffffa18c`b79af698 00000000`00000001 0x9
0d ffffa18c`b79af6a0 fffff803`bff400f8 0x1
0e ffffa18c`b79af6a8 ffffa80f`1c32fa10 EasyAntiCheat+0xf8
0f ffffa18c`b79af6b0 ffffa18c`b79af7c0 0xffffa80f`1c32fa10
10 ffffa18c`b79af6b8 fffff803`bffe4e5f 0xffffa18c`b79af7c0
11 ffffa18c`b79af6c0 ffffffff`ffffffff EasyAntiCheat+0xa4e5f
12 ffffa18c`b79af6c8 ffffa18c`0eacd4d0 0xffffffff`ffffffff
13 ffffa18c`b79af6d0 ffffe181`c67c7000 0xffffa18c`0eacd4d0
14 ffffa18c`b79af6d8 ffffe181`c6908000 0xffffe181`c67c7000
15 ffffa18c`b79af6e0 00000000`00000000 0xffffe181`c6908000

Rich (BB code):

4: kd> !pte fffff80361657000
                                           VA fffff80361657000
PXE at FFFF8C4623118F80    PPE at FFFF8C46231F0068    PDE at FFFF8C463E00D858    PTE at FFFF8C7C01B0B2B8
contains 000000006EE09063  contains 000000006EE0A063  contains 100000000652D063  contains 0000000000000000
pfn 6ee09     ---DA--KWEV  pfn 6ee0a     ---DA--KWEV  pfn 652d      ---DA--KWEV  not valid

hopefulllama · Jun 20, 2021

Hi, thanks for the reply and the swift analysis!

Which file(s) revealed this information? I can use this to log a bug against Easy AntiCheat.

x BlueRobot · Jun 20, 2021

hopefulllama said:
Which file(s) revealed this information? I can use this to log a bug against Easy AntiCheat.

All of the dump files (.dmp) referred to Easy AntiCheat, my analysis which I posted came from the latest dump file.

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BSOD when playing Fallguys for a short while

hopefulllama

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