I am currently running PHP 3.0.18 as a module under apache 1.3.19 on a FreeBSD 4.3-STABLE system.  When I attempt to login to my IMAP account on a remote system (not on the freebsd system running the webserver), I get a "Document contains no data" error from netscape, and I notice my httpd processes dying with a sig11.  This does not happen when logging into my IMAP account on that very same box using IMP.

Per instructions from the imp mailing list, I have completed a backtrace of this problem, and will submit here.

root-darkstar> gdb /usr/local/sbin/httpd
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This GDB was configured as "i386-unknown-freebsd"...
(no debugging symbols found)...
(gdb) run -X
Starting program: /usr/local/sbin/httpd -X
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Program received signal SIGSEGV, Segmentation fault.
---Type <return> to continue, or q <return> to quit---
0x28209c70 in php3_imap_sort () from /usr/local/libexec/apache/libphp3.so
(gdb) bt
#0  0x28209c70 in php3_imap_sort () from /usr/local/libexec/apache/libphp3.so
#1  0x28233cd9 in phpparse () from /usr/local/libexec/apache/libphp3.so
#2  0x281e787f in php3_parse () from /usr/local/libexec/apache/libphp3.so
#3  0x281e7bb6 in apache_php3_module_main ()
   from /usr/local/libexec/apache/libphp3.so
#4  0x281e4b79 in send_php3 () from /usr/local/libexec/apache/libphp3.so
#5  0x281e4c11 in send_parsed_php3 () from /usr/local/libexec/apache/libphp3.so
#6  0x80520e0 in ap_invoke_handler ()
#7  0x8060cfd in process_request_internal ()
#8  0x8060d5c in ap_process_request ()
#9  0x805a6b2 in child_main ()
#10 0x805a824 in make_child ()
#11 0x805a941 in startup_children ()
#12 0x805ae10 in standalone_main ()
#13 0x805b4b7 in main ()
#14 0x804ea11 in _start ()

Configure options include:
--with-apxs=/usr/local/sbin/apxs
--with-config-file-path=/usr/local/etc
--enable-versioning
--with-system-regex
--enable-track-vars
--without-gd
--with-zlib
--with-mhash=/usr/local
--with-imap=/usr/local
--with-mysql=/usr/local

Thats about it.. Hope this will help dig up this bug =)

-ben