mozilla hanging on gconfd2 startup?
Joe Marcus Clarke
marcus at marcuscom.com
Mon Mar 1 15:17:41 PST 2004
On Sun, 2004-02-29 at 20:07, Nate Lawson wrote:
> On Sun, 29 Feb 2004, Joe Marcus Clarke wrote:
> > On Sun, 2004-02-29 at 19:53, Nate Lawson wrote:
> > > On Sun, 29 Feb 2004, Joe Marcus Clarke wrote:
> > > > > Nope. Still get this hanging in "select":
> > > > > 1000 33625 1 0 76 0 6932 5444 select S ?? 0:00.10 /usr/X11R6/libexec/gconfd-2 12
> > > >
> > > > Could you break into this with gdb, and get a back trace just to see
> > > > what this guy is trying to do? Thanks.
> > >
> > > (gdb) bt
> > > #0 0x28313397 in poll () from /lib/libc.so.5
> > > #1 0x281331a1 in _thread_kern_sched_state_unlock () from /usr/lib/libc_r.so.5
> > > #2 0x28132be1 in _thread_kern_scheduler () from /usr/lib/libc_r.so.5
> > >
> > > > I know I've seen gconfd hang when starting up on -CURRENT with an
> > > > NFS-mounted home if rpc.lockd wasn't running on the server. I've also
> > > > seen problems where the local hostname wasn't resolvable or if there was
> > > > a permissions problem on /tmp or /var/tmp.
> > >
> > > No NFS mounts. The local hostname is not resolvable. A tcpdump shows
> > > this:
> > >
> > > tcpdump: listening on fxp0
> > > 16:50:35.000326 laptop.49457 > mydns.53: 60862+ A? laptop.example.org. (36)
> > > 16:50:35.067216 mydns.53 > laptop.49457: 60862 NXDomain* 0/1/0 (94)
> > > 16:50:35.067602 laptop.49458 > mydns.53: 60863+ A? laptop. (24)
> > > 16:50:35.206926 mydns.53 > laptop.49458: 60863 NXDomain 0/1/0 (99)
> > > 16:50:35.209422 laptop.49459 > mydns.53: 60864+ A? laptop.example.org. (36)
> > > 16:50:35.242605 mydns.53 > laptop.49459: 60864 NXDomain 0/1/0 (105)
> > > 16:50:35.242745 laptop.49460 > mydns.53: 60865+ A? laptop. (24)
> > > 16:50:35.408390 mydns.53 > laptop.49460: 60865 NXDomain 0/1/0 (99)
> > > 16:50:35.410527 laptop.49461 > mydns.53: 60866+ A? laptop.example.org. (36)
> > > 16:50:35.477876 mydns.53 > laptop.49461: 60866 NXDomain 0/1/0 (105)
> > > 16:50:35.478001 laptop.49462 > mydns.53: 60867+ A? laptop. (24)
> > > 16:50:35.634809 mydns.53 > laptop.49462: 60867 NXDomain 0/1/0 (99)
> > >
> > > So it does appear that the hostname is the issue. However, on a mozilla
> > > 1.5 and a -current of a few weeks ago, this was not a problem. So what
> > > changed?
> >
> > The gconf "dependency" was most likely added in 1.6. The solution to
> > this is to add your local hostname to /etc/hosts (that's the common
> > answer to GNOME users encountering this lock in gconfd). If you don't
> > want to do that, the pref trick is another valid workaround, but I think
> > the hostname thing makes more sense.
>
> Attempts to add the hostname as 127.0.0.1 and the actual IP resulted in a
> hang in the same place. A tcpdump of both lo0 and fxp0 show no more DNS
> queries so the hosts entry was definitely being used. A telnet to the
> hostname also shows that the lookup succeeds. Since there were no
> segments of TCP or UDP, I'm at a loss why it is blocking still.
I'm not able to reproduce this after upgrading to today's -CURRENT, and
rebuilding Mozilla, ORBit2, and gconf2. I'm using ULE and libpthread.
Perhaps tomorrow I'll try it with libc_r (I assume you're using libc_r
since you have the nVidia drivers?).
Joe
>
> -Nate
--
PGP Key : http://www.marcuscom.com/pgp.asc
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