You mean this:
- avoid problematic perl constructs open('|-') and open('-|') which fail
to catch certain fork errors, or waits indefinitely when resources
are tight; just explicitly create a pipe and call fork in subroutines
run_command, run_command_consumer and in run_as_subprocess. The change
possibly also solves some mystery cases where amavisd would appear
to hang when resources are tight (running out of swap space or near a
maxprocesses limit) instead of reporting a fork failure. Problem with
fork failing without giving a reason for failure reported by Uwe Kiewel;
I realiza that If i put:
vm.swappiness = 0
Error does not seems to be present, yet.
On Tuesday 09 December 2008 05:41:36 Mark Martinec wrote:
> Luis,
>
> > Using CAT (language pluging) I got this:
> >
> > Dec 8 20:07:04 soekris amavis[24051]: (24051-06) (!!)TROUBLE in
> > check_mail: parts_decode_ext FAILED: file(1) utility (/usr/bin/file)
> > error: run_command (open pipe): Can't fork at
> > /usr/lib/perl5/5.10.0/i386-linux-thread- multi/IO/File.pm line 188. at
> > /usr/sbin/amavisd line 2873.
> >
> > Under
> > Mandriva 2009.0
> > Amavis 2.6.2
> > Spamassassin 3.2.5
> >
> > is it a bug?
>
> It looks like you are running amavisd-new-2.6.1, not 2.6.2.
>
> There are a couple of reasons why fork can fail, the usual one
> is a shortage on swap space. Increase swap space, of reduce
> the number of amavisd child processes.
>
> Out of curiosity, I'd be interested how 2.6.2 (-rc2) fares in the same
> environment - code dealing with forking and pipe creation has been
> revised, so you'd hopefully get a more informative failure reason.
>
> Mark
>
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