linux-kernel - Re: printk meeting at LPC

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Message-ID: <20190924142438.fjicbolo2xmgn4t7@pathway.suse.cz>
Date:   Tue, 24 Sep 2019 16:24:38 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Andrea Parri <parri.andrea@...il.com>,
        SergeySenozhatsky <sergey.senozhatsky@...il.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Paul Turner <pjt@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        John Ogness <john.ogness@...utronix.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        LinusTorvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Theodore Ts'o <tytso@....edu>,
        PraritBhargava <prarit@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: printk meeting at LPC

On Wed 2019-09-18 12:48:01, Steven Rostedt wrote:
> On Wed, 18 Sep 2019 18:41:55 +0200
> Petr Mladek <pmladek@...e.com> wrote:
> 
> > Regarding SysRq. I could imagine introducing another SysRq that
> > would just call panic(). I mean that it would try to flush the
> > logs and reboot in the most safe way.
> 
> You mean sysrq-c ?

Sysrq-c is confusing because the NULL pointer dereference is reported.
I meant a completely new sysrq that would just call panic() without
an artificial noise.

Hmm, sysrq is already using most of the keys. sysrq-c might be good enough
after all.

Best Regards,
Petr