On Wed, 2010-04-07 at 11:48 +0800, jac...@umac.mo wrote: > > Oh, right, you're using NSS lookups instead of Dovecot's direct LDAP > > lookups. And the strace output shows it's calling poll(), but Dovecot > > was compiled to use epoll(). That means the problem is with your NSS > > configuration/libraries/whatever, nothing to do with Dovecot really. > > How about to configure Dovecot to do LDAP lookups directly to isolate the > problem?
That would probably help. > May I ask what is the different between poll() and epoll() ? Nothing important. What I meant by that above is that strace shows that the code that's running and eating 100% CPU is either pam_ldap or nss_ldap, not Dovecot.
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