Re: [BETA7-panic] sodealloc(): so_count 1

On Wed, Oct 06, 2004 at 08:32:20PM +0200, Marc UBM Bocklet wrote:
> On Wed, 6 Oct 2004 11:41:37 -0400
> Brian Fundakowski Feldman <green_at_freebsd.org> wrote:
> 
> > On Wed, Oct 06, 2004 at 09:01:04AM +0200, Marc UBM Bocklet wrote:
> > > On Tue, 5 Oct 2004 20:07:01 -0400
> > > Vlad <marchenko_at_gmail.com> wrote:
> > > 
> > > > Welcome to the club, Marc
> > > > 
> > > > I have the the same problem,  here is several observes  that I've
> > > > made:
> > > > 
> > > > 1) doesn't happen if kernel compiled w/o SMP
> > > 
> > > I'll try booting with a non-SMP kernel after the next panic.
> > > 
> > > > 2) happen under heavy traffic
> > > 
> > > Nope, there is only light traffic here when it panics (adsl with
> > > pppoe, but the line is never maxed out)
> > > 
> > > > 3) I had problems  with my network configuration (incorrect
> > > > broadcast assigned to aliased ip on interface) + packets loss
> > > > issue (switch side). when those two issues has been resolved it
> > > > seems that it's working more stable now.
> > > 
> > > Nope, nothing like that here. No packet loss, no configuration
> > > problems.
> > > 
> > > > anything common with the above on your end?
> > > 
> > > Let's hope we can narrow it down on smp/non-smp.
> > 
> > What kind of socket was it?  What address family, protocol type
> > (stream, datagram, etc.), listening, bound, connected?
> 
> I have no idea but maybe the backtrace/db output shows something you can
> use.
> 
> If not, how can I get that information? :-)
> 
> Attached are dmesg, output from db and my kernel config.
> 
> As I've described in another mail, another symptom is that the light on
> my switch where the cable to my fxp card is plugged in starts flashing,
> just as if there were lots of traffic going through.

Do you have a crashdump?  Whether you do or don't, can you, using
that kernel you just got this crash with, do the following:
$ kgdb <debug-kernel> /dev/mem
(kgdb) l *(tcp_input+0x1d36)

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green_at_FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\