From: Joe Perches <joe@perches.com>
To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Petr Mladek <pmladek@suse.cz>, Tejun Heo <tj@kernel.org>,
Calvin Owens <calvinowens@fb.com>,
Steven Rostedt <rostedt@goodmis.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: linux.git: printk() problem
Date: Mon, 24 Oct 2016 21:13:47 -0700 [thread overview]
Message-ID: <1477368827.1998.1.camel@perches.com> (raw)
In-Reply-To: <20161025040617.GA565@swordfish>
On Tue, 2016-10-25 at 13:06 +0900, Sergey Senozhatsky wrote:
> so how about skipping mod_timer in deferred_cont_flush() and just
> cont_flush() when we are in oops? here is probably one more thing we
> need to "fix" first. oops_in_progress is unreliable. x86 oops_end()
> does bust_spinlocks(0) before it calls panic(). panic() increments
> oops_in_progress but decrements it back to 0 (bust_spinlocks(0)) before
> it does console_flush_on_panic(). so there is (almost) no way
> console_flush_on_panic() can see oops_in_progress != 0.
I think Linus' insistence on not requiring EOL/newline is misguided.
It'd be simpler to avoid the flushes and have a require EOL/newline.
next prev parent reply other threads:[~2016-10-25 4:14 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-12 13:30 linux.git: printk() problem Tetsuo Handa
2016-10-12 14:35 ` Michal Hocko
2016-10-12 16:08 ` Joe Perches
2016-10-13 6:26 ` Michal Hocko
2016-10-13 9:29 ` Joe Perches
2016-10-13 10:04 ` Michal Hocko
2016-10-13 10:20 ` Joe Perches
2016-10-13 11:06 ` Michal Hocko
2016-10-12 15:47 ` Linus Torvalds
2016-10-12 16:16 ` Joe Perches
2016-10-12 16:54 ` Linus Torvalds
2016-10-12 18:50 ` [PATCH] acpi_os_vprintf: Use printk_get_level() to avoid unnecessary KERN_CONT Joe Perches
2016-10-13 21:59 ` Rafael J. Wysocki
2016-10-23 9:22 ` linux.git: printk() problem Geert Uytterhoeven
2016-10-23 18:11 ` Linus Torvalds
2016-10-23 19:06 ` Joe Perches
2016-10-23 19:32 ` Linus Torvalds
2016-10-23 19:46 ` Linus Torvalds
2016-10-24 11:15 ` Geert Uytterhoeven
2016-10-24 14:08 ` Sergey Senozhatsky
2016-10-24 14:23 ` Sergey Senozhatsky
2016-10-24 17:54 ` Linus Torvalds
2016-10-24 17:55 ` Linus Torvalds
2016-10-25 1:55 ` Sergey Senozhatsky
2016-10-25 2:06 ` Linus Torvalds
2016-10-25 2:22 ` Linus Torvalds
2016-10-25 4:06 ` Sergey Senozhatsky
2016-10-25 4:13 ` Joe Perches [this message]
2016-10-25 4:15 ` Linus Torvalds
2016-10-25 4:44 ` Sergey Senozhatsky
2016-10-25 14:44 ` Petr Mladek
2016-11-09 15:47 ` Petr Mladek
2016-10-25 2:24 ` Sergey Senozhatsky
2016-10-23 20:33 ` Joe Perches
2016-10-23 21:13 ` Linus Torvalds
2016-10-25 14:42 ` Steven Rostedt
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