[Freeipa-users] named failure: REQUIRE(pthread_kill(ldap_inst->watcher...) failed

[Petr Spacek]

Hello!

On 1.1.2014 00:45, Dmitri Pal wrote:
> On 12/30/2013 04:48 AM, Alexandre Ellert wrote:
>> This night, named crashed on my IPA server (Centos 6.5) :
>>
>> Dec 29 02:27:02 ipa-master named[1537]: received control channel
>> command 'reload'
>> Dec 29 02:27:03 ipa-master named[1537]: ldap_helper.c:640:
>> REQUIRE(pthread_kill(ldap_inst->watcher, 10) == 0) failed, back trace
>> Dec 29 02:27:03 ipa-master named[1537]: #0 0x7f6f443a0eff in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #1 0x7f6f42d0c89a in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #2 0x7f6f3e48acbf in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #3 0x7f6f3e48efd6 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #4 0x7f6f3e48f591 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #5 0x7f6f43bfca54 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #6 0x7f6f443c1b87 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #7 0x7f6f443c4726 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #8 0x7f6f443c4b36 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #9 0x7f6f443c4cf8 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #10 0x7f6f44399f55 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #11 0x7f6f4439d616 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #12 0x7f6f42d2b2f8 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #13 0x7f6f426e09d1 in ??
>> Dec 29 02:27:03 ipa-master named[1537]: #14 0x7f6f41c41b6d in ??
>> Dec 29 02:27:03 ipa-master named[1537]: exiting (due to assertion failure)
>>
>> DNS was setup during installation time and didn't notify any problem
>> since this server is in production (several months).
>>
>> Can you please advice about how to investigate to find the root cause
>> of this crash ?
>> Should I worry about that or is this just a isolated case ?

This crash happens if something goes seriously wrong with the LDAP connection 
between named and LDAP server. (It should not crash but I feel that this part 
of code is not bullet-proof.)

Do you see any messages complaining about broken connection or something like 
that? Did the server worked fine before the reload?


We need more information about your configuration. Please add details mentioned at

https://fedorahosted.org/bind-dyndb-ldap/wiki/BugReporting#Aboutyouroperatingsystemdistribution

and

https://fedorahosted.org/bind-dyndb-ldap/wiki/BugReporting#Abouttheplugin

Have a nice day!

-- 
Petr^2 Spacek