X14.04 dbus error

[MR ZenWiz]

This happened right before my system stopped being able to launch new
applications.  It also appeared hang my Seamonkey.

May  7 07:37:58 marbase kernel: [111528.035066] dbus-daemon[1999]:
segfault at 6c ip 000000000000006c sp 00007fff2babe378 error 14 in
dbus-daemon[400000+68000]
May  7 07:39:03 marbase kernel: [111593.124408]
Chrome_ChildThr[14333]: segfault at 0 ip 00007fc1823f24ea sp
00007fc176fda450 error 6 in libmozalloc.so[7fc1823f1000+2000]

(Yes, it hung my Seamonkey, not my Chrome.)

Does anyone know what this means?

Thanks.
MR