Bron Gondwana wrote: > On Tue, Sep 04, 2007 at 02:28:35PM -0400, Wesley Craig wrote: >> Just to be clear, that's cyr_expire dying, not being killed by >> master. Signal 11 is SIGSEGV, which is to say a segmentation >> violation, i.e., a bug in cyr_expire. Personally, I've seen this >> error on a lot of systems. The mailbox after the last one you listed >> probably has a corrupt meta file -- indicative of a bug in another >> process. Reconstruct will typically correct these sorts of problems. > > http://cyrus.brong.fastmail.fm/patches/cyrus-expire-prefix-2.3.9.diff > > Basically, the cyrus.cache file has a bunch of field length data in it, > and cyr_expire walks through that. If you have a corrupt cyrus.cache > then it will calculate the next memory address outside the mmap'ed > file and *BOOM* - segfault. > > The patch above does range checking on the next calculated address each > time, and if it's outside the range, it logs the mailbox and return > IOERROR. You still need to reconstruct, but at least cyr_expire keeps > running and you have the exact mailbox with the error in your logs > (otherwise you only have the last mailbox with messages expunged, which > gives a range to check but not an exact target) > > (it also adds a -p "mailbox prefix" option to allow you to expire just > a small range of mailboxes for easy finding of your bogus folder again) Thank you for the responds. I'll try to run reconstruct on the mailbox. And I hope to upgrade to 2.3.9 soon, I'm already running a small instance with a couple of your patches Bron. But I still got 6 to upgrade and those are rather hudge. Rudy -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Rudy Gevaert Rudy.Gevaert@xxxxxxxx tel:+32 9 264 4734 Directie ICT, afd. Infrastructuur ICT Department, Infrastructure office Groep Systemen Systems group Universiteit Gent Ghent University Krijgslaan 281, gebouw S9, 9000 Gent, Belgie www.UGent.be -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
