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Re: cygwin-1.7.10-1 fork - address space needed by ... already in use

On Thu, Mar 08, 2012 at 10:55:35AM +0100, Corinna Vinschen wrote:
>On Mar  8 09:50, Denis Excoffier wrote:
>> On Wed, Mar 07, 2012 at 06:47:49PM +0100, Corinna Vinschen wrote:
>> >> Hi Denis,
>> >> 
>> >> can you please test this again using the latest developer snapshot or
>> >> the current from CVS if you build Cygwin by yourself?  It provides a bit
>> >> more information to find the reason for the permission denied error in
>> >> _pinfo::dup_proc_pipe.
>> Thank you cgf (the committer and snapshot maker at least).
>> >> 
>> >> In theory, the user should have permissions to duplicate handles into
>> >> every own process, if the handle has been opened with these permissions,
>> >> so it's quite interesting to find the reason.
>> >> 
>> After about 3 hours of exercising the new snapshot (and shaking it a
>> little), i met the "something failed" instance only twice:
>>       1 [main] tcsh 7648! _pinfo::dup_proc_pipe: (child_info_spawn::worker) process synchronization failed for pid 7648/0x754, wr_proc_pipe 0x0 vs. 0x764: DuplicateHandle winerr 5, WFSO returned 258, Win32 error 5
>>     503 [main] tcsh 6148! _pinfo::dup_proc_pipe: (child_info_spawn::worker) process synchronization failed for pid 6148/0x758, wr_proc_pipe 0x0 vs. 0x768: DuplicateHandle winerr 5, WFSO returned 258, Win32 error 5
>> I continue, of course.
>Thanks, I don't think it's necessary to try further.  What this shows is
>that the process handle returned by the call to CreateProcess sometimes,
>for some reason, does not allow handle duplication.  That's weird.

I have a vague idea about why this is happening.  I'll look into it within
the next 48 hours.


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