dhcpd6 crashing almost every day

[perl-list]

try this: 

# dhcpd --version 

isc-dhcpd-4.4.1 

> From: "Jeremy Ainsworth" <jez250a at gmail.com>
> To: "Users of ISC DHCP" <dhcp-users at lists.isc.org>
> Sent: Wednesday, February 27, 2019 11:29:32 AM
> Subject: Re: dhcpd6 crashing almost every day

> $ sudo apt-cache policy bind9
> bind9:
> Installed: 1:9.11.4+dfsg-3ubuntu5.1

> Ubuntu 18.10

> > What version of ISC DHCP are you running?

> > > From: "Jeremy Ainsworth" <jez250a at [ http://gmail.com/ | gmail.com ] >
>> > To: "Users of ISC DHCP" <dhcp-users at [ http://lists.isc.org/ | lists.isc.org ]
> > > >
> > > Sent: Wednesday, February 27, 2019 10:33:37 AM
> > > Subject: dhcpd6 crashing almost every day

> > > My dhcpd6 is crashing almost every day for at least a year now. I've had to
> > > write a systemd override just to handle the restart.

> > > syslog for each time it falls over:

> > > Feb 27 11:31:46 miranda dhcpd[19771]: Client
> > > 00:01:00:01:21:b0:9a:89:b0:6e:bf:84:66:19 releases address
> > > _______(IPv6)_________
> > > Feb 27 11:31:46 miranda sh[19771]: ../../../lib/isc/heap.c:219: REQUIRE(idx >= 1
> > > && idx <= heap->last) failed, back trace
> > > Feb 27 11:31:46 miranda sh[19771]: #0 0x7f6a4d458e07 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #1 0x7f6a4d458d5a in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #2 0x7f6a4d45fe5a in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #3 0x558f45d6099e in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #4 0x558f45d5942f in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #5 0x558f45d57303 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #6 0x558f45d5fa6b in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #7 0x558f45d600e2 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #8 0x558f45d7b8f0 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #9 0x558f45d6aa33 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #10 0x558f45d9ab8e in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #11 0x7f6a4d49008b in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #12 0x7f6a4d47f7ee in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #13 0x7f6a4d484630 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #14 0x7f6a4d484af5 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #15 0x558f45d6cbf0 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #16 0x558f45d20888 in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #17 0x7f6a4d28209b in ??
> > > Feb 27 11:31:46 miranda sh[19771]: #18 0x558f45d2117a in ??
> > > Feb 27 11:31:46 miranda systemd[1]: isc-dhcp-server6.service: Main process
> > > exited, code=dumped, status=6/ABRT
> > > Feb 27 11:31:46 miranda systemd[1]: isc-dhcp-server6.service: Failed with result
> > > 'core-dump'.

> > > Will or how or when or can this be fixed? I can help, provide anything that
> > > might help to diagnose. Thanks. I'm getting a bit frustrated :/

> > > Thank you

> > > _______________________________________________
> > > dhcp-users mailing list
> > > dhcp-users at [ http://lists.isc.org/ | lists.isc.org ]
>> > [ https://lists.isc.org/mailman/listinfo/dhcp-users |
> > > https://lists.isc.org/mailman/listinfo/dhcp-users ]
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