Cygwin 1.7: Concurrency Issue with Shared State Initialization

Fri Mar 12 16:30:00 GMT 2010

On Mar 12 16:48, Schmidt, Oliver wrote:
> Hi,
>> > Does the patch help?
>> As the issue is sporadic it's not that easy to come up with a conclusive
> answer...
>> I downloaded http://cygwin.com/snapshots/cygwin1-20100309.dll.bz2, 
> unpacked and renamed the DLL and used it as drop-in replacement to the
> 1.7.1 DLL.
>> I experienced three times by now the effect that echo.exe "hangs" without
> using significant CPU time. Attaching a MSVC debugger I could only find
> out that in all three cases the executable stays in this endless loop:
>> 7D6373D2 cmp dword ptr ds:[7D6A0220h],edi 
> 7D6373D8 jne 7D628061 
> 7D6373DE lea eax,[ebp-28h] 
> 7D6373E1 push eax 
> 7D6373E2 push ebx 
> 7D6373E3 call 7D61CCB1 
> 7D6373E8 cmp eax,ebx 
> 7D6373EA jge 7D6373D2 

What about building the Cygwin DLL with debug symbols and using the GDB
debugger instead of MSVC? The latter doesn't grok the Dwarf-2 debugging
format.
Corinna
-- 
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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