Crash on 5.99.23

[Paul Goyette <paul%whooppee.com@localhost>]

Overnight, while my machine was idle, I experienced the following crash.
At first blush I might suspect something related to the recent changes 
WRT socket credentials?

I have the complete 8GB core dump.  This was from sources updated via 
anonCVS on 2010-01-02 at 19:28:14 UTC.

Any clues?


(gdb) target kvm netbsd.4.core
#0  0xffffffff801fca58 in cpu_reboot (howto=260, bootstr=<value optimized out>)
    at /build/netbsd-local/src/sys/arch/amd64/amd64/machdep.c:682
682                     dumpsys();
(gdb) bt
#0  0xffffffff801fca58 in cpu_reboot (howto=260, bootstr=<value optimized out>)
    at /build/netbsd-local/src/sys/arch/amd64/amd64/machdep.c:682
#1  0xffffffff80261c44 in panic (
    fmt=0xffffffff803ad990 <Address 0xffffffff803ad990 out of bounds>)
    at /build/netbsd-local/src/sys/kern/subr_prf.c:299
#2  0xffffffff80341275 in __kernassert (t=0x0, f=0x0, l=0, e=0x0)
    at /build/netbsd-local/src/sys/lib/libkern/__assert.c:50
#3  0xffffffff801c469d in kauth_cred_free (cred=0xffff8000587cacc0)
    at /build/netbsd-local/src/sys/kern/kern_auth.c:194
#4  0xffffffff802b40e1 in soclose (so=0xffff800010ff0040)
    at /build/netbsd-local/src/sys/kern/uipc_socket.c:772
#5  0xffffffff8027092b in soo_close (fp=0xffff8000587d2180)
    at /build/netbsd-local/src/sys/kern/sys_socket.c:256
#6  0xffffffff801c74c6 in closef (fp=0xffff8000587d2180)
    at /build/netbsd-local/src/sys/kern/kern_descrip.c:794
#7  0xffffffff802b92cd in do_sys_accept (l=<value optimized out>, 
sock=6,
    name=0xffff800058ee7c00, new_sock=<value optimized out>)
    at /build/netbsd-local/src/sys/kern/uipc_syscalls.c:241
#8  0xffffffff802b93c6 in sys_accept (l=0x0, uap=0xffff800058ee7c80,
    retval=0xffff800058ee7c30)
    at /build/netbsd-local/src/sys/kern/uipc_syscalls.c:268
#9  0xffffffff80270e85 in syscall (frame=0xffff800058ee7c80)
    at /build/netbsd-local/src/sys/sys/syscallvar.h:61
#10 0xffffffff80100607 in Xsyscall ()
(gdb) fr 3
#3  0xffffffff801c469d in kauth_cred_free (cred=0xffff8000587cacc0)
    at /build/netbsd-local/src/sys/kern/kern_auth.c:194
194             KASSERT(cred->cr_refcnt > 0);
(gdb) print *cred
$1 = {cr_refcnt = 0,
  cr_pad = "\000\000\000\000\000|X\000\200|X\000\200", '\0' <repeats 39 
times>, cr_uid = 0, cr_euid = 0, cr_svuid = 0, cr_gid = 0, cr_egid = 0,
  cr_svgid = 0, cr_ngroups = 1, cr_groups = {0,
    4294967295 <repeats 15 times>}, cr_sd = {specdataref_container = 
0x0,
    specdataref_lock = {u = {mtxa_owner = 18446744073709551600}}}}



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