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Subject: Re: Too many open files
From: Juan Manuel Guerrero <juan DOT guerrero AT gmx DOT de>
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Am Freitag, 27. Dezember 2013 08:50:11 UTC+1 schrieb Eli Zaretskii:
> > From: "Gisle Vanem" <gvanem AT yahoo DOT no>
> 
> > Date: Thu, 26 Dec 2013 23:36:47 +0100
> 
> > 
> 
> > With the recent update of bintils 2.24, the ar program (dated Dec 9 2013) is 
> 
> > misbehaving. Comparing to what always has worked fine. In adding 137 
> 
> > .o-files, it now stops at:
> 
> > 
> 
> >   e:\djgpp\bin/ar.exe: creating ../lib/libwatt.a
> 
> >   e:\djgpp\bin/ar.exe: djgpp/getnet.o: Too many open files (EMFILE)
> 
> > 
> 
> > The command is as it has always been (in Watt-32):
> 
> >  ar rs ../lib/libwatt.a djgpp/file1.o djgpp/file2.o  ..
> 
> > 
> 
> > Incidently I have "files = 30" in my %windir\system32\config.nt under
> 
> > Win-XP and the djgpp/getnet.o is the 22n'd file 'ar' is trying to add to
> 
> > the ../lib/libwatt.a.
> 
> > 
> 
> > Do I need to use a response-file now? How do I fix this? Juan, anyone?
> 
> 
> 
> I'd first enlarge "files =" to 40, and see if that affects the number
> 
> of files ar is able to process before it barfs.  (The fact that it
> 
> currently barfs on the 22nd file could be explained by inheriting some
> 
> of the handles from the parent process.)
> 
> 
> 
> I'm not familiar with 'ar's sources: does it need to keep files open,
> 
> or can it close a file after it has copied it into the archive?  Might
> 
> as well look this up in the sources.


I have never noted this before because I always have files=250.
I have been playing with ar; if I set files=39 it fails but if I
set files=40 it works.  I assume this is not really binutils 2.24
specific but concerns all latest binutil ports.  I will check
the ar sources to see if the amount of open file handles can be
reduced during processing.

Regards,
Juan M. Guerrero