Date: Mon, 26 Oct 2015 23:14:44 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 204048] stable/9: r289998: ntpd 4.2.8p4 DNS resolution misbehaves (occasional segfault) Message-ID: <bug-204048-8-RtKgHES1An@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-204048-8@https.bugs.freebsd.org/bugzilla/> References: <bug-204048-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204048 --- Comment #1 from Jeremy Chadwick <jdc@koitsu.org> --- I can reproduce this problem on stable/9 using ports/net/ntp and ports/net/ntp-devel too, though the stack trace looks different (maybe getting clobbered, or maybe libevent takes care of something, not sure): root@icarus:~ # pkg info | grep ntp ntp-4.2.8p4 The Network Time Protocol Distribution root@icarus: # grep ntp /etc/rc.conf # ntpd_flags: temporary workaround for https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199127 ntpd_enable="yes" ntpd_program="/usr/local/sbin/ntpd" ntpd_config="/conf/ME/ntp.conf" ntpd_sync_on_start="yes" ntpd_flags="-4 -p /var/run/ntpd.pid -f /var/db/ntpd.drift" root@icarus:~ # service ntpd start Starting ntpd. root@icarus:~ # dmesg -a | tail -1 pid 2425 (ntpd), uid 0: exited on signal 11 (core dumped) root@icarus:~ # gdb /usr/local/sbin/ntpd /ntpd.core ... #0 0x000000080134579d in _malloc_postfork () from /lib/libc.so.7 [New Thread 801807c00 (LWP 100886/ntpd)] [New Thread 801807400 (LWP 100878/ntpd)] (gdb) bt #0 0x000000080134579d in _malloc_postfork () from /lib/libc.so.7 #1 0x0000000801347b3e in _malloc_postfork () from /lib/libc.so.7 #2 0x000000080134a3fe in _malloc_prefork () from /lib/libc.so.7 #3 0x000000080134c482 in calloc () from /lib/libc.so.7 #4 0x0000000801372ba6 in __res_state () from /lib/libc.so.7 #5 0x000000080137e98c in freeaddrinfo () from /lib/libc.so.7 #6 0x00000008013a361a in nsdispatch () from /lib/libc.so.7 #7 0x000000080137fffb in getaddrinfo () from /lib/libc.so.7 #8 0x0000000000461c3d in ?? () #9 0x0000000000462293 in ?? () #10 0x00000000004648c9 in ?? () #11 0x00000008010a6e70 in pthread_getprio () from /lib/libthr.so.3 #12 0x0000000000000000 in ?? () -- You are receiving this mail because: You are the assignee for the bug.
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