Date: Tue, 25 Dec 2001 19:56:42 +0100 From: Ollivier Robert <roberto@keltia.freenix.fr> To: James Housley <jim@thehousleys.net> Cc: stable@freebsd.org Subject: Re: NTPD dumps core in 4.5-PRERELEASE Message-ID: <20011225195642.B711@tara.freenix.org> In-Reply-To: <3C269EE2.7820ACBC@Thehousleys.net>; from jim@thehousleys.net on Sun, Dec 23, 2001 at 10:20:02PM -0500 References: <3C269EE2.7820ACBC@Thehousleys.net>
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According to James Housley:
> 12/22 5am EST. 1 CVSup 12/23 5am EST. The laptop is dumps core on
> startup only with 12/22 & 12/23. I don't believe this was doing this
> before 4.1.0. If I re-run with the exact same parameters after the boot
> is finished all is well. Attached is the dmesg.boot and some debug
> information from the core file. This is reproduceable with every reboot
> on this one machine.
When you boot this machine, do you have access to the IP addresses of all your
ntp.conf servers/peers ?
> 1553 if (!peer->reach || (peer->stratum > 1 &&
> 1554 peer->refid ==
> (gdb)
> 1555 peer->dstadr->sin.sin_addr.s_addr) ||
> 1556 peer->stratum >= STRATUM_UNSPEC ||
> 1557 (root_distance(peer) >= MAXDISTANCE + 2 *
> 1558 clock_phi * ULOGTOD(sys_poll)))
...
> (gdb) p peer
> $1 = (struct peer *) 0x80829a8
> (gdb) p (struct peer *) peer
> $2 = (struct peer *) 0x80829a8
> (gdb) p *(struct peer *) peer
> $3 = {next = 0x0, ass_next = 0x0, srcadr = {sin_len = 0 '\000',
> sin_family = 2 '\002', sin_port = 31488, sin_addr = {s_addr = 98175},
> sin_zero = "\000\000\000\000\000\000\000"}, dstadr = 0x0, associd = 59212,
It is pretty obvious that your problem is that dstadr is NULL so
peer->dstadr->whatever will segfault.
I have a laptop very similar (Z600TEK). Although it is running current, I'll
try to reproduce this.
--
Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr
FreeBSD keltia.freenix.fr 5.0-CURRENT #80: Sun Jun 4 22:44:19 CEST 2000
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