bin/59982: named assertion failure when doing zone transfer

["spz%serpens.de@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         59982
>Category:       bin
>Synopsis:       named assertion failure when doing zone transfer
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Feb 08 16:10:00 +0000 2026
>Originator:     S.P.Zeidler
>Release:        NetBSD 11.0_RC1
>Organization:
dis-
>Environment:
	
	
System: NetBSD serpens.de 11.0_RC1 NetBSD 11.0_RC1 (SERPENS) #0: Sat Feb 7 12:30:40 UTC 2026 root%aries.NetBSD.de@localhost:/home/netbsd/11/arch/amiga/obj/sys/arch/amiga/compile/SERPENS amiga
Architecture: m68k
Machine: amiga
>Description:
  named.log (with some linebreaks inserted for long lines):

  08-Feb-2026 16:40:26.415 zone 192-27.217.233.199.in-addr.arpa/IN: Transfer
  started.
  08-Feb-2026 16:40:26.643 0xfd08010: transfer of
  '192-27.217.233.199.in-addr.arpa/IN' from 199.233.217.200#53: connected
  using 199.233.217.200#53
  08-Feb-2026 16:40:27.102
  /home/netbsd/11/src/external/mpl/bind/lib/libdns/../../dist/lib/dns/zone.c:17927:
  INSIST(((({ { int _ret = __libc_mutex_lock(&(zone)->atomic_lock); if
  ((_ret) != 0) { { char strerr[128]; isc_string_strerror_r(_ret, strerr,
  sizeof(strerr));
  isc_error_fatal("/home/netbsd/11/src/external/mpl/bind/lib/libdns/../../dist/lib/dns/zone.c",
  17927, __func__, "%s()" ": %s (%d)","pthread_mutex_lock", strerr, _ret);
  }; }; }; uint64_t x = (zone)->flags; { int _ret =
  __libc_mutex_unlock(&(zone)->atomic_lock); if ((_ret) != 0) { { char
  strerr[128]; isc_string_strerror_r(_ret, strerr, sizeof(strerr));
  isc_error_fatal("/home/netbsd/11/src/external/mpl/bind/lib/libdns/../../dist/lib/dns/zone.c",
  17927, __func__, "%s()" ": %s (%d)","pthread_mutex_unlock", strerr, _ret);
  }; }; }; x; }) & (DNS_ZONEFLG_REFRESH)) != 0)) failed
  08-Feb-2026 16:40:29.071 0xe3c4858 <isc_backtrace_log+0x30> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.098 0x2840a <_init+0xd68e> at /usr/sbin/named
  08-Feb-2026 16:40:29.118 0xe3cc3b2 <isc_assertion_failed+0x26> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.141 0xe1af1ac <dns_zone_dump+0x26e4> at
  /usr/lib/libdns.so.23
  08-Feb-2026 16:40:29.162 0xe1dae4a <dns_zone_import_skr+0x1e2> at
  /usr/lib/libdns.so.23
  08-Feb-2026 16:40:29.183 0xe1dcc3c <dns_xfrin_detach+0x3a2> at
  /usr/lib/libdns.so.23
  08-Feb-2026 16:40:29.206 0xe1de1c0 <dns_xfrin_shutdown+0x124e> at
  /usr/lib/libdns.so.23
  08-Feb-2026 16:40:29.231 0xe22d06a <dns_dispentry_detach+0x15e> at
  /usr/lib/libdns.so.23
  08-Feb-2026 16:40:29.254 0xe22e86c <dns_dispatch_gettcp+0x836> at
  /usr/lib/libdns.so.23
  08-Feb-2026 16:40:29.275 0xe3a9b80 <isc_quota_destroy+0xc82> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.299 0xe3a9688 <isc_quota_destroy+0x78a> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.322 0xe3aa0b8 <isc_quota_destroy+0x11ba> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.343 0xe3b4d60 <isc__nm_readcb+0xd0> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.366 0xe3a80f4 <isc__nm_tcp_read_cb+0x15e> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.388 0xe3d3e74 <isc_error_fatal+0x7656> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.411 0xe3d4830 <isc_error_fatal+0x8012> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.432 0xe3d13e2 <isc_error_fatal+0x4bc4> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.455 0xe3d80b8 <isc_error_fatal+0xb89a> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.476 0xe3c525c <isc_signal_start+0x71a> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.504 0xe3c60ea <isc_loopmgr_run+0x170> at
  /usr/lib/libisc.so.23
  08-Feb-2026 16:40:29.525 0x6b122 <uv__server_io+0xb7ca> at /usr/sbin/named
  08-Feb-2026 16:40:29.545 0x1fe7c <_init+0x5100> at /usr/sbin/named
  08-Feb-2026 16:40:29.569 exiting (due to assertion failure)

  I've seen this both times I started named, within minutes of start.
  Since named needs to run, going to use pkgsrc bind for the time being.
>How-To-Repeat:
  zone transfer seems to be broken at least on amiga
>Fix:
	

>Unformatted: