toolchain/58897: gdb has issues with multithreaded programs

[martin%NetBSD.org@localhost]

>Number:         58897
>Category:       toolchain
>Synopsis:       gdb has issues with multithreaded programs
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Dec 12 11:15:01 +0000 2024
>Originator:     Martin Husemann
>Release:        NetBSD 10.99.12
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD martins.aprisoft.de 10.99.12 NetBSD 10.99.12 (GENERIC) #251: Mon Nov 25 18:30:20 CET 2024 martin%martins.aprisoft.de@localhost:/home/martin/current/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:

Simple example, seems to work 100% reliably for me:

	> gdb dig
	> run
[..]
;; Query time: 0 msec
;; SERVER: 192.168.111.42#53(192.168.111.42) (UDP)
;; WHEN: Thu Dec 12 12:09:15 CET 2024
;; MSG SIZE  rcvd: 851

[LWP 1942 of process 1939 exited]
[New LWP 1942 of process 1939]
[LWP 1942 of process 1939 exited]
Couldn't get registers: Device busy.


>How-To-Repeat:
s/a

>Fix:
n/a