We had the same thing, affected only one of our DNS servers (behind a load-balancer). Here's the relevant log snippet:
Nov 15 23:03:33 mail1 named[4601]: query.c:1781: INSIST(! dns_rdataset_isassociated(sigrdataset)) failed, back trace Nov 15 23:03:33 mail1 named[4601]: #0 0x7f1b1e97686f in ?? Nov 15 23:03:33 mail1 named[4601]: #1 0x7f1b1d346b1a in ?? Nov 15 23:03:33 mail1 named[4601]: #2 0x7f1b1e982f8a in ?? Nov 15 23:03:33 mail1 named[4601]: #3 0x7f1b1e237e93 in ?? Nov 15 23:03:33 mail1 named[4601]: #4 0x7f1b1e263e9d in ?? Nov 15 23:03:33 mail1 named[4601]: #5 0x7f1b1e97aa1e in ?? Nov 15 23:03:33 mail1 named[4601]: #6 0x7f1b1e98036d in ?? Nov 15 23:03:33 mail1 named[4601]: #7 0x7f1b1e981bb7 in ?? Nov 15 23:03:33 mail1 named[4601]: #8 0x7f1b1d365439 in ?? Nov 15 23:03:33 mail1 named[4601]: #9 0x7f1b1c74a8ba in ?? Nov 15 23:03:33 mail1 named[4601]: #10 0x7f1b1c16202d in ?? Nov 15 23:03:33 mail1 named[4601]: exiting (due to assertion failure) All times are U.S. Central Time and we're running on Debian (Linux mail1 2.6.32-5-amd64 #1 SMP Wed Jan 12 03:40:32 UTC 2011 x86_64 GNU/Linux). server:/etc/rc3.d# /usr/sbin/named -v BIND 9.7.3 server:/ Frank From: bind-users-bounces+frnkblk=iname....@lists.isc.org [mailto:bind-users-bounces+frnkblk=iname....@lists.isc.org] On Behalf Of Samer Khattab Sent: Wednesday, November 16, 2011 2:09 AM To: bind-users@lists.isc.org Subject: BIND 9.7.3-P3 crash on multiple cashing servers 8 of our cashing-only name servers crashed in a random sequence, and the crash happened in a 10 minutes time. The servers are running BIND 9.7.3-P3. The crash produced a core dump for the named process. Does anybody has a similar case recently? Is this a security issue ? Regards, Samer
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