BSOD since v11.26

[zed87]

Hello,
I've been using FreeFileSync for many years and everything has been working until version 11.26. Shortly after I installed 11.26 I started seeing BSOD everytime I was syncing lots of data over network. It would take few minutes before I get BSOD. It happened 3 times with v11.26 and stopped happening once I downgraded to 11.25. Everything has been fine until I installed v11.27 to see if I would still get BSOD with this new version and as you could guess I did after few minutes of syncing. Unfortunately I can't provide you a dump file from today, because I restored whole system from backup after the last BSOD and lost the dump file.
The only information I can share is a minidump created after BSOD with version 11.26.

Just don't tell me I have outdated network adapter drivers because I have always the latest. :D

Was there any big change between versions 11.25 and 11.26 that could possibly cause bsod?

[Zenju]

Looks pretty much like a driver bug or a hardware failure of the ethernet chip:

The faulting module is from Realtek:
\SystemRoot\System32\drivers\rt640x64.sys

and the reason for the OS to crash is an unhandled exception in this driver's code: KMODE_EXCEPTION_NOT_HANDLED

Call stack:

nt!KiGeneralProtectionFault+0x320
ndis!NdisMAllocateNetBufferSGList+0x3d4f6
rt640x64+0x25f39


Possible explanation: The ethernet chip is buggy and fails under load. But to be sure one would have to open a support ticket at Realtek (ツ)

PS: BSODs cannot(*) be caused by non-kernel apps like FFS.
*) assuming a bug-free OS

[zed87]

Thanks for the info!

If it's caused by a network card driver, then I could try v11.27 one more time but this time with second network card that I have in my system (i225-V). The one crashing is Akasa Pcie card with RTL8125.

I'll try it tomorrow evening and let you know the result.