On Aug 31 13:28, Christopher Faylor wrote: > On Sat, Aug 31, 2013 at 06:26:54PM +0200, 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. > > > >What bugs me is that the change to the mtinfo structure (only the size > >of some members were affected) apparently didn't change the value of > >CURR_SHARED_MAGIC, but I don't think we can change this short-term. > > The magic recalculation is pretty crude. It only detects changes in > shared_info > itself, not in structures used by shared_info.
The mtinfo structure changed for the first time after its introduction in 2004. I guess we can ignore this problem once every 9 years :) Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat
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