toolchain/55746: gdb 'target kvm' broken

[coypu%sdf.org@localhost]

>Number:         55746
>Category:       toolchain
>Synopsis:       gdb 'target kvm' broken
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 23 07:55:00 +0000 2020
>Originator:     coypu
>Release:        NetBSD 9.99.74
>Organization:
>Environment:
NetBSD planets 9.99.74 NetBSD 9.99.74 (GENERIC) #0: Mon Oct 19 10:39:14 IDT 2020  fly@planets:/cvs/obj/sys/arch/amd64/compile/GENERIC amd64

>Description:
(gdb) target kvm /var/crash/netbsd.225.core
fish: ?sudo gdb /cvs/obj/sys/arch/amd6?? terminated by signal SIGABRT (Abort)


Core was generated by `gdb'.
Program terminated with signal SIGABRT, Aborted.
#0  0x000078257f5751ea in _lwp_kill () from /usr/lib/libc.so.12
[Current thread is 1 (process 1996)]
(gdb) bt
#0  0x000078257f5751ea in _lwp_kill () from /usr/lib/libc.so.12
#1  0x000078257f5756e5 in abort () from /usr/lib/libc.so.12
#2  0x000000001d664bea in ?? ()
#3  <signal handler called>
#4  0x000000001d39ae5c in find_thread_ptid(inferior*, ptid_t) ()
#5  0x00000000000a000d in ?? ()
#6  0x0000000000000000 in ?? ()

>How-To-Repeat:

>Fix: