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Re: 20130830, size of shared memory region changed


On Aug 31 19:39, Denis Excoffier wrote:
> On 2013-08-31 18:26, Corinna Vinschen wrote:
> > On Aug 31 14:00, Denis Excoffier wrote:
> >> Hello,
> >> 
> >> I'm using Cygwin 32 bits. With the 20130830 snapshot i now get many messages like:
> >> "      x [main] y z shared_info::initialize: size of shared memory region changed from 27984 to 21776"
> >> 
> >> where x, y and z vary,
> >> - x is typically a small integer (most often 2 or 3, but occurrences were observed of: 4, 5, 8, 27, even 311)
> >> - y is a program name (tcsh, echo, tr, grep, cut, cat, g++, factor...)
> >> - z is a PID
> >> 
> >> The name "main" and the numbers 27984 and 21776 seem always present.
> >> 
> >> It seems that each process initialization would generate a message. Otherwise, all seems OK.
> > 
> > I can't reproduce this.  The size of the shared_info changed with my
> > tape drive related checkin from 2013-08-26, but your error message
> > points to some older process still running, still using the previous
> > DLL.  Since the shared_info region continues to exist, any newer process
> > using the new DLL will find that its idea of the sizeof shared_info
> > doesn't match what has been noted in shared_info itself.  Nothing else
> > can explain this.
> You're right, and this is only my fault. After logoff/login i was unable
> to reproduce this. In fact, ssh-agent (that i introduced recently in my
> profile, and which i normally kill by 'ssh-agent -k', was not
> actually killed this time since after the replacement of the cygwin1.dll
> launching a new process always fails) is the culprit. I will now always
> logoff/login after installing a new snapshot (and also try to
> double-check my reports more closely in the future...).
> 
> Sorry for the noise.

No worries, really.  Thanks for letting us know.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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