Am Freitag, den 26.01.2007, 13:29 -0700 schrieb Bernard Johnson: > Nils Toedtmann wrote: > > I agree. But customization of C4 (and probably C3, too) to run smoothly > > as a VM is a bit evil (i run a bunch of productive C4 DomUs, so walked > > through that valley ...): glibc and db4 have to be patched/rebuilt > > because of NPTL incompatibilities. > > I agree that C3 would be a problem - both guest and host. > > However, for C4 I have a "installer hack" that allows C4 to install > under Xen (FC6 host) using virt-manager & kickstart. When it's > finished, the only package that is modified is the kernel (to provide a > domU image). > > Perhaps your VM is the issue with tls. Among other things: yes. > Once I started using a recent > enough host (FC6) and a recent enough guest (C4), all my tls problems > disappeared. I guess they did not disappear but got hidden. AFAIK (correct me if i am wrong) recent xen versions have a hack to workaround TLS-libs silently, but there is still a performance penalty. And the db4-prob ist still there: install and start cyrus-imapd on C4 under xen/FC6. If the maillog does not fill up with DBERROR, i owe you a beer. /nils.