[prev in list] [next in list] [prev in thread] [next in thread] 

List:       djbdns
Subject:    Re: tinydns doesn't answer
From:       Jeff King <peff () peff ! net>
Date:       2007-06-23 19:52:49
Message-ID: 20070623195249.GA7030 () sigill ! intra ! peff ! net
[Download RAW message or body]

On Sat, Jun 23, 2007 at 09:37:18AM -0700, David Benfell wrote:

> This is a good question; when I strace tinydns, it comes back with
> nothing; absolutely nothing.  I suppose it is a reasonable idea that it
> might be hanging somehow, but I don't know how to debug this either.

Did you check the multilog process? How long has it been up, according
to svstat /service/tinydns/log?

I seem to recall some flakiness with strace under FreeBSD in the
past...have you tried truss or ktrace?

Can you restart the tinydns process and get the same behavior? If so,
can you try tracing from the start rather than attaching after the fact?

> lupin% ps aux | grep readproc    
> root       1259  0.0  0.0  1300   440  ??  S    14Jun07   3:48.40 [readproctitle]
> 
> On other systems, readproctitle has been more helpful; I haven't figured
> out how to make it useful on a BSD (this is FreeBSD).

I believe this has to do with a FreeBSD internal limit. Try:

  sysctl kern.ps_arg_cache_limit=512

and then restart readproctitle.

-Peff
[prev in list] [next in list] [prev in thread] [next in thread]