Michael Paquier <michael@xxxxxxxxxxx> writes: > On Sat, Oct 26, 2019 at 11:02:26AM -0700, Adrian Klaver wrote: >> Not sure how that can be answered without knowing what ComputeComputer is >> doing? > Yes, there is nothing of this kind in the PostgreSQL code. Sure there is: win32error.c produces exactly that message if its mapping table has no entry for the Windows error code. According to https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-?redirectedfrom=MSDN code 38 decimal is ERROR_HANDLE_EOF, "Reached the end of the file.", which indeed is not in the doserrors[] table. But that just deepens the mystery --- if we hit an EOF, why wasn't that handled through more-normal channels? We still need to know what that function was trying to do, and whether any non-core C code was involved. regards, tom lane