Created attachment 7637 [details]
gdb backtrace, log with log level 10 and config
smbd crashes at most of incoming requests (didn't know at what exactly).
steps to reproduce:
try to access share list or specific share from any machine (including server itself with smb daemon from smbclient)
smbd Version 3.6.5-85.fc16 running under fedora 16 x86_64 (kernel 3.3.7-1.fc16.x86_64) which running under virtualbox 4.1.8 r75467 (windows 7 x64 sp1).
problem exist in early versions (don't know what exactly but it starts crashing after upgrade to fedora 16 from 15 where samba becomes 3.6 from 3.5).
samba-3.5.12 and early versions in this fedora 16 works properly.
gdb backtrace, log with log level 10 and config in attachment.
see also http://lists.samba.org/archive/samba/2012-February/166397.html