segfault in ctl_cyrusdb/cyr_expire/lmtpd

[Dmitry Katsubo]

Dear Cyrus developers,

I am experiencing segfaults for cyrus-imapd v2.4.16 in my environment:

> Aug 29 11:51:35 ctl_cyrusdb[3713]: segfault at 0 ip b7255d76 sp bfdff308 error 6 in libc-2.13.so[b71de000+156000]
> Aug 29 11:51:35 cyr_expire[3728]: segfault at 0 ip b727dd76 sp bf8876e8 error 6 in libc-2.13.so[b7206000+156000]
> Aug 29 12:03:04 lmtpd[6190]: segfault at 0 ip b7063d76 sp bfcdde18 error 6 in libc-2.13.so[b6fec000+156000]
> Aug 29 12:03:04 lmtpd[6196]: segfault at 0 ip b71f4d76 sp bfdc4d48 error 6 in libc-2.13.so[b717d000+156000]
> Aug 29 12:03:04 lmtpd[6197]: segfault at 0 ip b70d4d76 sp bfcf8f48 error 6 in libc-2.13.so[b705d000+156000]
> Aug 29 12:03:37 lmtpd[7628]: segfault at 0 ip b70f8d76 sp bff07348 error 6 in libc-2.13.so[b7081000+156000]

IMAP server and local delivery does not work. It looks like all these
binaries share the same code that segfaults. How can I diagnose the
problem further? Thanks for any hint.

Additional info:
* Debian sid
* Linux kernel 2.6.32-5-486
* cyrus-imapd-2.4_2.4.16-1
* libc6-2.13-35

-- 
With best regards,
Dmitry