[Bug 271604] ifconfig ix0.<vlan> create leads to crash

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 271604] ifconfig ix0.<vlan> create leads to crash"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 24 May 2023 13:09:58 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271604

--- Comment #2 from Kurt Jaeger <pi@FreeBSD.org> ---
This document suggests to use:

kgdb /boot/kernel/kernel /var/crash/vmcore.0

which leads to this:

Reading symbols from /boot/kernel/kernel...
(No debugging symbols found in /boot/kernel/kernel)
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/thread.c:1337:
internal-error: switch_to_thread: Assertion `thr != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
----- Backtrace -----
0x1320d61 ???
0x17c7751 ???
0x17c75b8 ???
0x1c5d723 ???
0x17869ef ???
0x1458ab0 ???
0x17677ff ???
0x1355614 ???
0x1794d75 ???
0x1541ac5 ???
0x15404bb ???
0x153ee9e ???
0x122c35b ???
---------------------
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/thread.c:1337:
internal-error: switch_to_thread: Assertion `thr != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n

This is a bug, please report it.  For instructions, see:
<https://www.gnu.org/software/gdb/bugs/>.

/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/thread.c:1337:
internal-error: switch_to_thread: Assertion `thr != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.

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