dhcpd crashing

[Jiri Popelka]

  On 08/03/2010 10:45 AM, Miroslav Lauš wrote:
> On Aug 3, 2010, at 10:29 AM, sthaug at nethelp.no wrote:
>
>>> we're running ISC DHCP 4.1.1 on FreeBSD 7.0-RELEASE.
>>> Few days ago the dhcpd started to crash few times a day:
>>>
>>> Aug  3 03:36:42 portax2 kernel: pid 52983 (dhcpd), uid 0: exited on signal 11 (core dumped)
>> Are you using LDAP? I notice your dhcpd is built with LDAP libraries.
>> It might be a good idea to try to run it without LDAP. And also to
>> build it with debugging symbols to enable a sensible backtrace after
>> a crash.
> Running without LDAP is not an option for us as the whole
> network is configured from LDAP (mainly for dynamic subclass provisioning).
>
> The issue first came up after we enabled failover for some subnets.
> We try to build with debugging symbols to see what's happening.
>
>> For comparison, on my FreeBSD 7.3-STABLE box (without LDAP), dhcpd
>> is only linked with two libraries:
>>
>> % ldd /usr/local/sbin/dhcpd
>> /usr/local/sbin/dhcpd:
>>        libcrypto.so.5 =>  /lib/libcrypto.so.5 (0x28118000)
>>        libc.so.7 =>  /lib/libc.so.7 (0x28271000)
>>
>> For me (failover config, around 120k leases) ISC DHCP 4.1.1 is rock
>> stable.
> We have about 100k leases. dhcpd complains sometimes at start:
>
> /var/db/dhcpd.leases line 2391515: semicolon expected.
>   cltt
>    ^
> /var/db/dhcpd.leases line 2392364: semicolon expected.
>   cltt
>    ^
> /var/db/dhcpd.leases line 2392381: semicolon expected.
>   cltt
>    ^
This is another (already reported) bug.
https://lists.isc.org/pipermail/dhcp-users/2010-June/011532.html
> But then it continues to start and works.
>
> Regards,
> Miroslav