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From: John Ogness <john.ogness@linutronix.de>
To: Joe Korty <joe.korty@concurrent-rt.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	linux-rt-users@vger.kernel.org
Subject: Re: [5.4-rt] kdb: push 'bt' command output to console immediately.
Date: Wed, 20 May 2020 17:33:25 +0200
Message-ID: <87zha2hb96.fsf@vostro.fn.ogness.net> (raw)
In-Reply-To: <20200520151613.GA54006@zipoli.concurrent-rt.com> (Joe Korty's message of "Wed, 20 May 2020 11:16:14 -0400")

On 2020-05-20, Joe Korty <joe.korty@concurrent-rt.com> wrote:
> [5.4-rt] kdb: push 'bt' command output to console immediately.
>
> The rt patch for 5.4 and 5.2 broke kdb slightly.  The kdb
> 'bt' command now prints a single line then returns to the
> kdb prompt.  There is no stack trace being shown.
...
>
> I have attached a small patch that Seems To Work.  It
> taps earlier into printk than the official tap does.

On LKML a similar patch was recently posted[0]. It would probably be
better to follow that (patching vprintk_func and using
KDB_MSGSRC_PRINTK).

John Ogness

[0] https://lkml.kernel.org/r/20200520102233.GC3464@linux-b0ei

  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-20 15:16 Joe Korty
2020-05-20 15:33 ` John Ogness [this message]
2020-05-20 15:40   ` Joe Korty
2020-05-26 16:44   ` Sebastian Andrzej Siewior
2020-05-26 16:55     ` Joe Korty

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