5.3-p16/i386 unknown reason console hang

[Rong-En Fan]

On 6/20/05, Juraj Lutter <wilbury at gmail.com> wrote:
> On 6/14/05, Rong-En Fan <grafan at gmail.com> wrote:
> > Hello all,
> >
> > Recently, one of our 5.3-p16/i386 machine got frequenctly hang. Details,
> >
> > 1. I can switch vty, but can't login (after typing username, got hang)
> > 2. can response to ping, but not other tcp/udp services
> > 3. can break into ddb
> 
> I'm getting exactly the same behaviour on 4.11-STABLE/i386. After
> typing the username on console machine hangs. It works like a charm
> with previous kernel (4.8-STABLE). Upgrade was done today via usual
> way (build world/kernel, install world/kernel, mergemaster, reboot
> with /usr/local/etc/rc.d empty to ensure only base services to run).

Hmm.. after switching from uw-imap to dovecot, this hang seems not exist
anymore. I'm guessing that possible causes by different locking mechanism
used by Postfix and uw-imap (flock and fnctl...).

rafan.