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From: "me at ruff dot mobi" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/28874] arm-none-eabi: internal-error: thread_info*
 inferior_thread(): Assertion `current_thread_ != nullptr' failed
Date: Sun, 06 Mar 2022 20:12:57 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28874

--- Comment #2 from Ruslan N. Marchenko <me at ruff dot mobi> ---
In my case executable is irrelevant, you can simply have none at all.
Just need a remote debugger (I use BMP) and then as simple as=20
$ arm-none-eabi-gdb
GNU gdb (GDB) 11.2
Copyright (C) 2022 Free Software Foundation, Inc.
...
For help, type "help".
Type "apropos word" to search for commands related to "word".
(gdb) tar ext /dev/ttyACM0
Remote debugging using /dev/ttyACM0
(gdb) mon s
Target voltage: 3.29V
Available Targets:
No. Att Driver
 1      STM32L47x M4
(gdb) set debug remote on
(gdb) attach 1
Attaching to Remote target
[remote] Sending packet: $vAttach;1#37
[remote] Received Ack
[remote] Packet received: T05
[remote] packet_ok: Packet vAttach (attach) is supported
[remote] Sending packet: $qC#b4
[remote] Received Ack
[remote] Packet received:
../../gdb/thread.c:72: internal-error: thread_info* inferior_thread():
Assertion `current_thread_ !=3D nullptr' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)

--=20
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