v2.3.6 message delete causes signal 10

[Rosenbaum, Larry M.]

I have just installed Cyrus IMAP v2.3.6 on a test system.  Whenever I
try to delete a message in my INBOX, the delete fails and I see the
following message in the log file:

May 26 11:41:01 xxxx master[10821]: [ID 970914 local6.error] process
10841 exited, signaled to death by 10

This happens whether or not expunge_mode: delayed is set.

This is on Solaris 8 with the following setup:

name       : Cyrus IMAPD
version    : v2.3.6 2006/05/25 15:21:49
vendor     : Project Cyrus
support-url: http://asg.web.cmu.edu/cyrus
os         : SunOS
os-version : 5.8
environment: Built w/Cyrus SASL 2.1.22
             Running w/Cyrus SASL 2.1.22
             Built w/Sleepycat Software: Berkeley DB 4.4.20: (January
10, 2006)
             Running w/Sleepycat Software: Berkeley DB 4.4.20: (January
10, 2006)
             Built w/OpenSSL 0.9.8a 11 Oct 2005
             Running w/OpenSSL 0.9.8a 11 Oct 2005
             CMU Sieve 2.3
             mmap = shared
             lock = fcntl
             nonblock = fcntl
             idle = idled

Cyrus IMAP v2.3.3 (with sasl v2.1.21) ran fine.  Any ideas?