lib/59652: DNS utilities core dump in -current

[brandon%burn.net@localhost]

>Number:         59652
>Category:       lib
>Synopsis:       DNS utilities core dump in -current
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Sep 13 20:05:00 +0000 2025
>Originator:     Brandon Applegate
>Release:        11.0-BETA Aug 27 2025
>Organization:
>Environment:
NetBSD c3700.retronet.burn.net 11.99.1 NetBSD 11.99.1 (GENERIC) #0: Sun Aug  3 08:22:49 UTC 2025  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/hppa/compile/GENERIC hppa
>Description:
Example:

c3700$ dig burn.net
assertion "!(urcu_memb_reader).registered" failed: file "/usr/src/external/lgpl2/userspace-rcu/lib/liburcu-memb/../../dist/src/urcu.c", line 486, function "urcu_memb_register_thread"
[1]   Abort trap (core dumped) dig burn.net

And from a slightly later build (Aug. 27):

[vom@c3700 ~]$ uname -a
NetBSD c3700.retronet.burn.net 11.0_BETA NetBSD 11.0_BETA (GENERIC) #0: Wed Aug 27 12:56:40 UTC 2025  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/hppa/compile/GENERIC hppa

[vom@c3700 ~]$ dig arin.net soa
assertion "!(urcu_mb_reader).registered" failed: file "/usr/src/external/lgpl2/userspace-rcu/lib/liburcu-mb/../../dist/src/urcu.c", line 486, function "urcu_mb_register_thread"
Abort trap (core dumped)

I personally hit this issue on hppa, but reading the mailing list thread it seems other ports may be affected as well.

Please also see:

https://mail-index.netbsd.org/netbsd-users/2025/08/03/msg032919.html

For some discussion on this...
>How-To-Repeat:
Try to ISC BIND utilities (ex: dig, delv) on a -current machine.
>Fix:
Unknown