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Date:      Thu, 10 Oct 2002 17:44:13 -0400
From:      abe <abe@informationwave.net>
To:        Luigi Rizzo <rizzo@icir.org>
Cc:        hackers@freebsd.org
Subject:   Re: fatal trap 12 kernel panic
Message-ID:  <20021010214413.GA71656@dipole.informationwave.net>
In-Reply-To: <20021010143948.B65814@carp.icir.org>
References:  <20021010212954.GA67855@dipole.informationwave.net> <20021010143948.B65814@carp.icir.org>

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Hi Luigi,

    Pardon, been a hectic week.  Heh.  I've tried this on fresh installs of
4.5-rel, 4.5-rel-p20, 4.6.2-p2, and 4.7-RC.

On Thu, Oct 10, 2002 at 02:39:48PM -0700, Luigi Rizzo wrote:
> what freebsd version are you using, are you using compiled-in ipfw or
> a module ?
> 
> 	cheers
> 	luigi
> 
> On Thu, Oct 10, 2002 at 05:29:54PM -0400, abe wrote:
> > Hi,
> > 
> >      I've written to the questions list recently with regard to a panic that keeps occuring
> >  and perhaps my message was not formatted as well as it could have been.  In more testing
> >  it seems that the minute the ipfw rules are loaded (which previously worked without issue),
> >  the machine panics.  Any network connectivity attempted afterwards results in a panic.
> >  This includes ping, telnet, smtp, etc.  When the machine panics, it drops into the debugger
> >  and displays the following:
> > 
> >  Stopped at    add_dyn_rule+0172:   movl   0(%edx,%ebx,4)x%eax
> > 
> >  I am including the entire 'trace' output from the debugger, but have also tried to
> >  produce a core to get a backtrace via gdb however it doesn't seem to be dumping a core.
> >  savecore="YES" as well as dumpdir and dumpdev are set properly in rc.conf, yet nothing
> >  is produced and the system claims no dumpdev is set.
> > 
> >  If anyone has any experience with this issue, as I believe it to be with ipfw due to
> >  lengthy testing on 4 different machines now (was 3 before), please feel free to email me
> >  and clue me in.  Thanks a lot.
> > 
> >      Regards,
> > 
> >  Abe
> > 
> 
> > add_dyn_rule(c0424894,0,c1258e00) at add_dyn_rule+0x172
> > install_state(c1258e00) at install_state+0x179
> > ip_fw_chk(cc88cda4,14,c1153000,cc88cdaa,cc88cdac) at ip_fw_chk+0x8d8
> > ip_output(c0e63800,0,cbafad7c,0,0) at ip_output+0x530
> > udp_output(cbafad40,c0e63800,0,0,cb69ba40) at udp_output+0x238
> > udp_send(cbac8980,0,c0e63800,0,0) at udp_send+0x20
> > sosend(cbac8980,0,cc88cecc,c0e63800,0) at sosend+0x5df
> > sendit(cb69ba40,5,cc88cf0c,0,bfbfeb2b) at sendit+0x253
> > sendto(cb69ba40,cc88cf80,1b,bfbff400,0) at sendto+0x4e
> > syscall2(2f,2f,2f,0,bfbff400) at syscall2+0x1f5
> > Xint0x80_syscall() at Xint0x80_syscall+0x25
> 

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