Re: [PATCH 03/16] kdb: Use real_parent when displaying a list of processes

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To: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Subject: Re: [PATCH 03/16] kdb: Use real_parent when displaying a list of processes
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Thu, 19 May 2022 09:56:19 +0200
Cc: linux-kernel@xxxxxxxxxxxxxxx, rjw@xxxxxxxxxxxxx, Oleg Nesterov <oleg@xxxxxxxxxx>, mingo@xxxxxxxxxx, vincent.guittot@xxxxxxxxxx, dietmar.eggemann@xxxxxxx, rostedt@xxxxxxxxxxx, mgorman@xxxxxxx, bigeasy@xxxxxxxxxxxxx, Will Deacon <will@xxxxxxxxxx>, tj@xxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx, Richard Weinberger <richard@xxxxxx>, Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>, Johannes Berg <johannes@xxxxxxxxxxxxxxxx>, linux-um@xxxxxxxxxxxxxxxxxxx, Chris Zankel <chris@xxxxxxxxxx>, Max Filippov <jcmvbkbc@xxxxxxxxx>, linux-xtensa@xxxxxxxxxxxxxxxx, Kees Cook <keescook@xxxxxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, Robert OCallahan <roc@xxxxxxxxx>, Kyle Huey <khuey@xxxxxxxxx>, Richard Henderson <rth@xxxxxxxxxxxxxxx>, Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>, Matt Turner <mattst88@xxxxxxxxx>, Jason Wessel <jason.wessel@xxxxxxxxxxxxx>, Daniel Thompson <daniel.thompson@xxxxxxxxxx>, Douglas Anderson <dianders@xxxxxxxxxxxx>, Douglas Miller <dougmill@xxxxxxxxxxxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Paul Mackerras <paulus@xxxxxxxxx>
In-reply-to: <20220518225355.784371-3-ebiederm@xmission.com>
References: <871qwq5ucx.fsf_-_@email.froward.int.ebiederm.org> <20220518225355.784371-3-ebiederm@xmission.com>

On Wed, May 18, 2022 at 05:53:42PM -0500, Eric W. Biederman wrote:
> kdb has a bug that when using the ps command to display a list of
> processes, if a process is being debugged the debugger as the parent
> process.
> 
> This is silly, and I expect it never comes up in ptractice.  As there
                                                   ^^^^^^^^^

Lol, love the new word :-)

Follow-Ups:
- Re: [PATCH 03/16] kdb: Use real_parent when displaying a list of processes
  - From: Eric W. Biederman

References:
- [PATCH 00/16] ptrace: cleanups and calling do_cldstop with only siglock
  - From: Eric W. Biederman
- [PATCH 03/16] kdb: Use real_parent when displaying a list of processes
  - From: Eric W. Biederman

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