port-vax/38869: nslookup / dig libpthread related dump

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>Number:         38869
>Category:       port-vax
>Synopsis:       nslookup / dig libpthread related dump
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-vax-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jun 05 13:50:00 +0000 2008
>Originator:     Chavdar Ivanov
>Release:        4.0
>Organization:
Delcam UK
>Environment:
NetBSD vaxnbsd 4.0 NetBSD 4.0 (GENERIC) #0: Sun Dec 16 01:45:50 PST 2007  
builds@wb25:/home/builds/ab/netbsd-4-0-RELEASE/vax/200712160005Z-obj/home/builds/ab/netbsd-4-0-RELEASE/src/sys/arch/vax/compile/GENERIC
 vax
>Description:
Running dig or nslookup always gives the result described. This is Vax NetBSD 
4.0 release version, running under SIMH 3.7.3. The networking and the name 
services have been configured and are working correctly - say, with ftp and 
ssh. 

# PTHREAD_DIAGASSERT=A dig
dig: Error detected by libpthread: Mutex not locked in condition wait.
Detected by file 
"/home/builds/ab/netbsd-4-0-RELEASE/src/lib/libpthread/pthread_cond.c", line 
111, function "pthread_cond_wait".
See pthread(3) for information.
/home/builds/ab/netbsd-4-0-RELEASE/src/dist/bind/lib/isc/task.c:817: fatal 
error: RUNTIME_CHECK(((__libc_cond_wait(((&manager->work_available)), 
((&manager->lock))) == 0) ? 0 : 34) == 0) failed
[1]   Abort trap (core dumped) PTHREAD_DIAGASSE...
GNU gdb 5.3nb1
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "vax--netbsdelf"...(no debugging symbols found)...
Core was generated by `dig'.
Program terminated with signal 6, Aborted.
#0  0x001085e4 in kill (518, 6)
(gdb) bt
#0  0x001085e4 in kill (518, 6)
#1  0x0012d510 in abort ()
#2  0x000d820e in isc_error_fatal (1473573, 817, 1478381, 1474977, 1433620)
#3  0x000d8244 in isc_error_runtimecheck (1473573, 817, 1474977)
#4  0x000d2c64 in isc_taskmgr_destroy (1757184)
#5  0x000dc298 in pthread__testcancel (863196, 1757184)

>How-To-Repeat:
# dig
dig: Error detected by libpthread: Mutex not locked in condition wait.
Detected by file 
"/home/builds/ab/netbsd-4-0-RELEASE/src/lib/libpthread/pthread_cond.c", line 
111, function "pthread_cond_wait".
See pthread(3) for information.
[1]   Abort trap (core dumped) dig
# nslookup
nslookup: Error detected by libpthread: Mutex not locked in condition wait.
Detected by file 
"/home/builds/ab/netbsd-4-0-RELEASE/src/lib/libpthread/pthread_cond.c", line 
111, function "pthread_cond_wait".
See pthread(3) for information.
[1]   Abort trap (core dumped) nslookup

>Fix:
n/a