From owner-freebsd-current  Thu Jul 19 12:40:24 2001
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Date: Thu, 19 Jul 2001 12:40:11 -0700 (PDT)
From: Matthew Jacob <mjacob@feral.com>
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To: <current@freebsd.org>
Subject: did somebody notice a crash in ip_output if you're using multicast?
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fatal kernel trap:

    trap entry     = 0x2 (memory management fault)
    cpuid          = 0
    faulting va    = 0x48
    type           = access violation
    cause          = load instructon
    pc             = 0xfffffc00004ce89c
    ra             = 0xfffffc00004ce874
    sp             = 0xfffffe002e1bbaf8
    usp            = 0x11ffb5a0
    curproc        = 0xfffffe0028293fc0
        pid = 199, comm = ntpd

Stopped at      ip_output+0x9bc:        ldq     t0,0x48(s6) <0x48>
<t0=0x20
100001d00,s6=0x0>
db> t
ip_output() at ip_output+0x9bc
igmp_sendpkt() at igmp_sendpkt+0x1a0
igmp_joingroup() at igmp_joingroup+0x7c
in_addmulti() at in_addmulti+0x108
ip_setmoptions() at ip_setmoptions+0x4c0
ip_ctloutput() at ip_ctloutput+0x2ac
sosetopt() at sosetopt+0x4c
setsockopt() at setsockopt+0xb4
syscall() at syscall+0x728
XentSys() at XentSys+0x64
--- syscall (105, FreeBSD ELF, setsockopt) ---
--- user mode ---
db> reboot

halted CPU 0

halt code = 5
HALT instruction executed
PC = fffffc00005cdf40

CPU 0 booting

(boot dkb200.2.0.5.1 -flags a)
pblock 0 of dkb200.2.0.5.1 is a valid boot block
reading 15 blocks from dkb200.2.0.5.1
bootstrap code read in
base = 200000, image_start = 0, image_bytes = 1e00
initializing HWRPB at 2000

-matt



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