On Thu, 27 Jun 2024 11:47:25 +0100,
Claudio Jeker <clau...@openbsd.org> wrote:
>
> The ptrace code is somewhat borken. We are inside sleep_finish() but
> cursig() calls single_thread_set() without SINGLE_DEEP. Because of this
> exit1() is called in a place it is not allowed to.
>
> ptrace and SIGSTOP handling is not quite right. It is on my list of things
> to fix.
>
I'd like to add that right now both gdb and egdb can't be used with emacs,
and lead to a state when gdb, egdb and emacs can't be killed.
See:
~ $ doas pkill -KILL egdb
~ $ ps auxf | grep emacs
catap 47464 0.0 0.0 1240 816 ?? Ip Wed10PM 0:00.01 |--
/bin/sh -c emacs
catap 66347 0.0 0.9 123848 154240 ?? S Wed10PM 4:37.08 |
`-- emacs (emacs-29.4)
catap 12114 0.0 0.0 1240 840 ?? Ip Wed10PM 0:00.01 |--
/bin/sh -c env EMACS_RUN_WL=1 emacs
catap 96172 3.1 1.4 228948 238060 ?? S Wed10PM 8:02.84 |
`-- emacs (emacs-29.4)
catap 59801 0.0 0.0 796 1388 p4 S+p 12:35PM 0:00.00
`-- grep emacs
root 45111 0.0 0.8 108100 131308 p4- D 12:33PM 0:00.90 - egdb
/usr/local/bin/emacs
catap 65871 0.0 1.1 138984 174340 p2 TX+ 12:32PM 0:09.39 `-- emacs
(emacs-29.4)
catap 57261 0.0 0.7 102848 122276 p4- D 12:34PM 0:00.73 - egdb
/usr/local/bin/emacs-29.4
catap 35085 0.7 0.3 39336 51416 p4- TX 12:34PM 0:04.48 `--
/usr/local/bin/emacs-29.4
~ $ doas kill -KILL 65871
~ $ ps auxf | grep emacs
catap 47464 0.0 0.0 1240 816 ?? Ip Wed10PM 0:00.01 |--
/bin/sh -c emacs
catap 66347 0.0 0.9 123848 154240 ?? S Wed10PM 4:37.08 |
`-- emacs (emacs-29.4)
catap 12114 0.0 0.0 1240 840 ?? Ip Wed10PM 0:00.01 |--
/bin/sh -c env EMACS_RUN_WL=1 emacs
catap 96172 0.7 1.4 228948 238060 ?? S Wed10PM 8:02.85 |
`-- emacs (emacs-29.4)
catap 17192 0.0 0.0 796 1372 p4 S+p 12:35PM 0:00.00
`-- grep emacs
root 45111 0.0 0.8 108100 131308 p4- D 12:33PM 0:00.90 - egdb
/usr/local/bin/emacs
catap 65871 0.0 1.1 138984 174340 p2 TX+ 12:32PM 0:09.39 `-- emacs
(emacs-29.4)
catap 57261 0.0 0.7 102848 122276 p4- D 12:34PM 0:00.73 - egdb
/usr/local/bin/emacs-29.4
catap 35085 0.0 0.3 39336 51416 p4- TX 12:34PM 0:04.48 `--
/usr/local/bin/emacs-29.4
~ $ doas gdb /usr/local/bin/emacs
GNU gdb 6.3
Copyright 2004 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 "amd64-unknown-openbsd7.5"...(no debugging symbols
found)
(gdb) attach 65871
Attaching to program: /usr/local/bin/emacs, process 65871
ptrace: Device busy.
~ $
Here egdb with pid 57261 was used to attach to emacs with pid 65871
--
wbr, Kirill
