Sorry, this is getting long, but I'm baffled.

Here's what I got:

starwolf 650# gdb /usr/sbin/named named.core
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This GDB was configured as "sparc--netbsd"...
Core was generated by `named'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/libexec/ld.elf_so...done.
Reading symbols from /usr/lib/libc.so.12...done.
#0  0x39a14 in ns_resp (msg=0xefffed68 "\027\037\204\200", msglen=187, from={
      sin_len = 16 '\020', sin_family = 2 '\002', sin_port = 53, sin_addr = {
        s_addr = 3499314287}, sin_zero = "\000\000\000\000\000\000\000"},
    qsp=0x0)
    at /export/src/usr.sbin/bind/named/../../../dist/bind/bin/named/ns_resp.c:459
459                     if (ina_equal(fwd->fwddata->fwdaddr.sin_addr, from.sin_addr))
(gdb) print *fwd
$1 = {next = 0x5001085, fwddata = 0x39a14}
(gdb) print fwd
$2 = (struct fwdinfo *) 0x0
(gdb) 

What is up with that?!?  I should not be able to reference fwd->next if
fwd is (struct fwdinfo *) NULL!

On Sun, 8 Jul 2001, Greg A. Woods wrote:

# > Here's the trace:
# > 
# > #0 0x39a14 in ns_resp (msg=0xefffed68 "> s_addr = 3499314287}, sin_zero =
# >     "\000\000\000\000\000\000\000"}, qsp=0x0)
# >     at /export/src/usr.sbin/bind/named/../../../dist/bind/bin/named/ns_resp.c:459
# > #1 0x2c6e8 in dispatch_message (msg=0xefffed68 "> sin_port = 53, sin_addr
# >       = {s_addr = 3499314287}, sin_zero = "\000\000\000\000\000\000\000"},
# >       dfd=4, ifp=0xefffed8b)
# >     at /export/src/usr.sbin/bind/named/../../../dist/bind/bin/named/ns_main.c:1160
# > #2 0x2c424 in datagram_read (lev={opaque = 0x106000}, uap=0x0, fd=4,
# > evmask=1)
# >     at /export/src/usr.sbin/bind/named/../../../dist/bind/bin/named/ns_main.c:1102
# > #3 0x6430c in __evDispatch (opaqueCtx={opaque = 0xc55b8}, opaqueEv={
# >       opaque = 0x1})
# >     at /export/src/usr.sbin/bind/lib/../../../dist/bind/lib/isc/eventlib.c:487
# > #4 0x2ad90 in main (argc=770048, argv=0xbc000, envp=0x84400)
# >     at /export/src/usr.sbin/bind/named/../../../dist/bind/bin/named/ns_main.c:552
# > #5  0x12138 in ___start ()
# > 
# > I rather suspect that qsp=0x0 is causing a problem :-)
# 
# No, not necessarily.  'qsp' is never dereferenced in ns_resp()
# 
# What does "print *fwd" show?
#  
# (I'm betting fwd->fwddata is either null or pointing off into hyperspace)
# 
# It seems as though it's choking on some packet it received....
# 
# It's very good that you've got a repeatable scenario here!
# 
# You might want to capture all the port-53 related traffic surrounding a
# crash too....
# 
# I think there's still time to get a fix into 8.2.5!  ;-)
# (8.2.5-T1A was announced on June 23)
# 
# -- 
# 							Greg A. Woods
# 
# +1 416 218-0098      VE3TCP      <gwoods@acm.org>     <woods@robohack.ca>
# Planix, Inc. <woods@planix.com>;   Secrets of the Weird <woods@weird.com>
# 


				--*greywolf;
--
If your server could choose, it would choose NetBSD.