Moving to the new vpopmail (with the identical CFLAGS & configure options for
5.4.23 that I've been using for a long time), I get:

Aug 25 14:45:47 zeus kernel: vdelivermail[30615]: segfault at 20 ip
000000000040eff6 sp 00007fff74149560 error 4 in vdelivermail[400000+16000]
Aug 25 14:45:47 zeus kernel: vdelivermail[30625]: segfault at 20 ip
000000000040eff6 sp 00007fffc3f26750 error 4 in vdelivermail[400000+16000]
Aug 25 14:45:47 zeus kernel: vdelivermail[30633]: segfault at 20 ip
000000000040eff6 sp 00007ffff83be570 error 4 in vdelivermail[400000+16000]
Aug 25 14:45:50 zeus kernel: vdelivermail[30755]: segfault at 20 ip
000000000040eff6 sp 00007fff1ac13d40 error 4 in vdelivermail[400000+16000]
Aug 25 14:45:51 zeus kernel: vdelivermail[30934]: segfault at 20 ip
000000000040eff6 sp 00007fffa6073b70 error 4 in vdelivermail[400000+16000]
Aug 25 14:45:51 zeus kernel: vdelivermail[30944]: segfault at 20 ip
000000000040eff6 sp 00007fffc1280c20 error 4 in vdelivermail[400000+16000]
Aug 25 14:45:51 zeus kernel: vdelivermail[30945]: segfault at 20 ip
000000000040eff6 sp 00007fff87a5d550 error 4 in vdelivermail[400000+16000]
Aug 25 14:45:51 zeus kernel: vdelivermail[30954]: segfault at 20 ip
000000000040eff6 sp 00007fffa61a3000 error 4 in vdelivermail[400000+16000]

Shows up in my syslog and dmesg.

OS: Debian Squeeze
GCC  4.3.4
GlibC 2.9
MySQL 5.0.51a

Also, when I just type vdelivermail I get:

vdelivermail: invalid syntax in .qmail-default file


!DSPAM:4a94376a32713827114405!