9.3.0 crashing on reload sometimes.

[Mark Andrews]

> I am getting a odd problem of bind 9.3.0 crashing when I do a reload.
> The servers are setup as part of a slave pool for around 20,000 domains and
> they also handle a few cache queries. Every half hour I reload them
> (staggered) to pick up new zones that have been added, I run
> named-checkconfig and named-checkzone on all configs before reloading.
> 
> What is happening is that every now and then one or more of the servers will
> die with the following error:
> 
> xx-Oct-2005 xx:46:23.211 loading configuration from '/etc/named.conf'
> xx-Oct-2005 xx:46:23.279 interfaceiter.c:171: REQUIRE((((iter) != 0)
> && (((const isc__magic_t *)(iter))->magic == ((('I') << 24 | ('F') <<
> 16 | ('I') << 8 | ('T')))))) failed
> xx-Oct-2005 xx:46:23.279 exiting (due to assertion failure)
> 
> 
> Checking the files gives no errors and often only one of the servers die
> when each is loading the same config. Crashes are happening on maybe 1 out
> of a thousand reloads. There is no obvious connection with load nor zones
> being changed. Unlike the above sometimes it dies several seconds into the
> reload.
> 
> I checked the changlog for 9.3.2 but don't see obvious references to this
> being fixed.
> 
> Ideas?

	I'd upgrade.

1762.   [bug]           isc_interfaceiter_create() could return ISC_R_SUCCESS
                        even when it failed. [RT #12995]

	Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org