> On August 19, 2016 at 10:00 PM Ladislav Laska <la...@kam.mff.cuni.cz> wrote: > > > Hi! > > I'm currently experiencing a crash of dovecot 2.2.25 on Gentoo, upon opening > mailbox. The crash only triggers on opening inbox, other mailboxes seem to > work > fine. It happens every time, and can be reproduced on request. I also briefly > tried 2.2.19, and it behaves the same. > > The bug seems to be triggered by some mail, as I encountered it previously > and > fixed by removing some spam. I guess it might be malformed header of some > kind. > I can open the mailbox locally using mutt, but fail to do so remotely (using > mutt or K-9 mail on android). Unforunately, I haven't been able to isolate > the > specific mail, as when I create a new mailbox, dovecot refuses to open it: > > [CANNOT] Mailbox isn't a valid mbox file (0.000 + 0.000 secs). > > I'm not really sure what's going on and will investigate further once I find > some time to do so. > > I also experienced a similar problem on opening a specific mail, but it's > much > harder to reproduce and I currently don't have an example. The crash looks > very > similar, and only happens on first attempt to open a specific mail, it always > works later on. > > I'm attaching a stack trace and dovecot -n. I'm also willing to send the > binary > and core dump, but not publicly, as I'm not eager to share whatever's inside > with the whole world. > > Other than what I mentioned, I'm running pretty standard setup, with postfix > on > Gentoo x86_64, ext4 fs, quota and disk space is plentiful. The delivery agent > is > dovecot itself, in postfix/main.cf I have: > > mailbox_command = /usr/libexec/dovecot/deliver > > I'm using sieve script to file my mail, but the problem manifested even > before > when I was still using procmail to deliver my mail (I migrated because I had > doubts about procmail and dovecot lock cooperation) > > I'll keep my mailbox corrupted for a few more days, and access the mail only > locally, hoping to test a potential fix. Let me know if you need any more > info/experimentation. Also, if you know a good way to find the mail that > causes > the trouble out of the core, let me know, I'd be glad to forward it for > testing. > > Thanks and I hope we can find (and fix) the problem! > > -- > S pozdravem Ladislav Láska <la...@kam.mff.cuni.cz> > Katedra Aplikované Matematiky, MFF UK tel.: +420 739 464 167
Hi! Please provide doveconf -n relevant log files (or at least anything you care to share) gdb /path/to/binary /path/to/core bt full --- Aki Tuomi Dovecot Oy
