On Thu, Jul 06, 2006 at 03:07:51PM +0100, Antony Gelberg wrote: > ERROR: Connection dropped by IMAP server. > Query: SORT (FROM) ISO-8859-1 ALL. Any logs generated in maillog at this point? > I can confirm that cpu and ram usage are > very low, so I would hazard a /guess/ that this is a bug rather than > running out of resources. However, if the IMAP server were asked to do grow memory utilisation quickly and hit is memory ulimit, it would terminate immediately, and so you might not see the problem. (Aside: I don't know if couriertcpd waits for the exit status of its children, but perhaps it should. It could then generate a log message if one of its children died due to a signal such as SIGXCPU) I'd also hope that imapd would log an error if malloc() fails, but I don't know that the code does that at every possible point. If you want to debug this, here's how I suggest you go about it. 1. Try to replicate the problem. Given this particular mailbox, you might be able to by telnet localhost 143 a login username password a select inbox a sort (from) iso-8859-1 all [If this fails, see if anything interesting is logged back to the telnet session] If this doesn't fail, then you'll need to find out exactly what the client is sending which tickles the bug. You can do this using tcpdump: tcpdump -i eth0 -n -s1500 -X host x.x.x.x # where x.x.x.x = client IP or by setting IMAPDEBUGFILE=log.txt in the 'imapd' config file, although doing so will mean that *all* clients will get a log.txt inside their Maildir logging the commands sent to them. 2. If you can replicate it reliably, things get easier. You can now try to replicate at the command line: # su - username $ /path/to/imapd ./Maildir This should put you straight into an authenticated imap session. Enter the same commands. If they still replicate the problem, then move on to using strace to monitor the system calls: $ strace -f /path/to/imapd ./Maildir and see what it's doing just before it bombs out. You could also try running it under gdb, but that needs some more expertise. HTH, Brian. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV -- squirrelmail-users mailing list Posting Guidelines: http://www.squirrelmail.org/wiki/MailingListPostingGuidelines List Address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List Archives: http://news.gmane.org/thread.php?group=gmane.mail.squirrelmail.user List Archives: http://sourceforge.net/mailarchive/forum.php?forum_id=2995 List Info: https://lists.sourceforge.net/lists/listinfo/squirrelmail-users
