Jakub Zakrzewski:

> (I'm just creating dumps using TaskManager)

Have you tried Process Explorer? v16.1 was released 10 days
ago:
  https://technet.microsoft.com/en-gb/sysinternals/processexplorer

> Just look at the callstack:
>
> ntdll.dll!NtDeviceIoControlFile() Unknown
> mswsock.dll!WSPRecv() Unknown
> ws2_32.dll!recv() Unknown
> libssh2.dll!_libssh2_recv(unsigned __int64 sock=0, void * buffer=0x0000000000000200, unsigned __int64 length=0, int flags=0, void * * abstract=0x0000000105874f80) Line 104 C

A read buffer with such a low address (0x200) looks highly suspicious.
So I think your .pdb files are not up-to-date?

> I don't know if I can entirely trust the dumps from an optimized build though.

But having .pdb-files even for optimized builds (Release with all optimisations?),
is a good thing IMHO.

-- 
--gv
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