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From: Peter Zijlstra <peterz@infradead.org>
To: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Petr Mladek <pmladek@suse.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dmitry Vyukov <dvyukov@google.com>,
	linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Subject: Re: [RFC][PATCH 0/6] Use printk_safe context for TTY and UART port locks
Date: Tue, 19 Jun 2018 10:08:30 +0200	[thread overview]
Message-ID: <20180619080830.GD2476@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20180618143818.50b2f2f9@alans-desktop>

On Mon, Jun 18, 2018 at 02:38:18PM +0100, Alan Cox wrote:
> Given printk nowdays is already somewhat unreliable with all the perf
> related changes,

printk is a steaming pile of @#$#@, unreliable doesn't even begin to
cover it.

> and we have other good debug tools

What other good debug tools do you have? The only thing I have that
actually works is earlyser/8250_early -- and I route everything printk
into that.

      parent reply	other threads:[~2018-06-19  8:08 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-15  9:39 [RFC][PATCH 0/6] Use printk_safe context for TTY and UART port locks Sergey Senozhatsky
2018-06-15  9:39 ` [RFC][PATCH 1/6] printk: move printk_safe macros to printk header Sergey Senozhatsky
2018-06-18  6:27   ` Sergey Senozhatsky
2018-06-15  9:39 ` [RFC][PATCH 2/6] tty: add tty_port locking helpers Sergey Senozhatsky
2018-06-15  9:39 ` [RFC][PATCH 3/6] tty/pty: switch to tty_port helpers Sergey Senozhatsky
2018-06-15  9:39 ` [RFC][PATCH 4/6] serial: add uart port locking helpers Sergey Senozhatsky
2018-06-15  9:39 ` [RFC][PATCH 5/6] serial: switch to uart_port " Sergey Senozhatsky
2018-06-15  9:39 ` [RFC][PATCH 6/6] tty: 8250: " Sergey Senozhatsky
2018-06-18 13:38 ` [RFC][PATCH 0/6] Use printk_safe context for TTY and UART port locks Alan Cox
2018-06-19  0:53   ` Sergey Senozhatsky
2018-06-19  8:30     ` Petr Mladek
2018-06-19  8:59       ` Sergey Senozhatsky
2018-06-20  2:01       ` Linus Torvalds
2018-06-20  2:34         ` Steven Rostedt
2018-06-20  2:44           ` Linus Torvalds
2018-06-22 16:21             ` Alan Cox
2018-06-22 16:39               ` Peter Zijlstra
2018-06-23  5:21               ` Sergey Senozhatsky
2018-06-20  2:56           ` Sergey Senozhatsky
2018-06-20  2:50         ` Sergey Senozhatsky
2018-06-20  3:38           ` Linus Torvalds
2018-06-20  4:28             ` Sergey Senozhatsky
2018-06-28  2:55             ` Sergey Senozhatsky
2018-06-19  8:08   ` Peter Zijlstra [this message]

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