https://bugs.winehq.org/show_bug.cgi?id=52159 Bug ID: 52159 Summary: 64-bit cygwin gdb.exe and python3.8.exe fail to run Product: Wine Version: 6.22 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: ntdll Assignee: wine-bugs(a)winehq.org Reporter: bernhardu(a)mailbox.org Distribution: --- Created attachment 71205 --> https://bugs.winehq.org/attachment.cgi?id=71205 details.txt This issue can be seen if the workarounds for bug #47808 got applied first. Both gdb.exe and python3.8.exe fail in the python initialisation. As far as I see it python allocates 8 bytes for a sem_t structure. This uninitialized struct is given to sem_init which checks if this is a previously initialized semaphore by checking with verifyable_object_isvalid. This check happens inside a __try/__endtry [2] [3]. That way we end up in RtlUnwindEx, which inspects NtCurrentTeb()->Tib.ExceptionList. Unfortunately this list finally contains a pointer to the initial stack, which cygwin deallocated before [1]. See details.txt. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.