Leo, > I am experiencing problems with some spam-mail that causes amavisd to > hang forever. Maybe it has some problems when running spamassassin, at > least in many cases the last debug-output is from spamassassin. However, > when manually feeding the mail to spamassassin, everything works fine.
I tried to reproduce with your versions of amavisd, SA and perl, (with disabled virus scanner, so that a message could reach SpamAssassin) but it didn't fail here, so I'll need some assistance. > Additionally, the following error is output: > > *** glibc detected *** amavisd (ch1-30412-01): free(): invalid next size > (normal): 0x0def2e28 *** It may or may not be related. > The corresponding process never recovers and has to be killed with -9. It is spinning CPU, or just hanging? > The emails that cause the trouble contain a zip file as attachment. > I have saved one of those mails, together with the debug-output of > amavis at the following address: > http://leo.kloburg.at/tmp/amavis-hang/ > > Since mail delivery stops once all configured amavisd children are in > such a hanging state, I am desperately looking for an advice how to > further track down the bug. > > Additionally I'd appreciate any hints on how to reject those mails in an > early state, so that amavisd won't crash. (Maybe based on the > attachment-name?) These viruses are probably now caught by ClamAV and other virus scanners, or by banning rules. Nevertheless, the issue should be tracked down. Your file amavisd-debug.txt seems to indicate it stopped while SA is trying to compile or evaluate its first set of body rules at priority -1000. Are you using any custom rules? Could you run the same test with only the rules that come with SA? It might help disabling BerkeleyDB ( $enable_db=0; ), it saves some memory and the stack, which can be an issue with Perl 5.10.0 or 5.8.9 on some platforms. What is your other debug file amavisd-debug2.txt? This one doesn't stop while calling SpamAssassin, but apparently while doing header section check or thereabout. Are these two logs from the same event? With your version of amavisd you can get a merged amavisd+SpamAssassin log on stdout by setting: $DO_SYSLOG = 0; $LOGFILE = undef; $sa_debug = 1; and running: amavisd foreground Mark ------------------------------------------------------------------------------ OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get _______________________________________________ AMaViS-user mailing list AMaViS-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
