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Date: Wed, 5 Dec 2018 11:57:28 +0900
From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Feng Tang <feng.tang@intel.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Petr Mladek <pmladek@suse.com>, akpm@linux-foundation.org,
	bp@suse.de, keescook@chromium.org, mm-commits@vger.kernel.org,
	sergey.senozhatsky@gmail.com, stable@vger.kernel.org,
	tglx@linutronix.de, Steven Rostedt <rostedt@goodmis.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Sasha Levin <sashal@kernel.org>
Subject: Re: + panic-avoid-the-extra-noise-dmesg.patch added to -mm tree
Message-ID: <20181205025728.GC503@jagdpanzerIV>
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 <20181204154936.wbgcovzpc54n6dvs@shbuild888>
 <20181205022654.GA503@jagdpanzerIV>
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On (12/05/18 10:47), Feng Tang wrote:
> 
> Btw, just FYI,  I just tried the sysrq (using minicom CTL + A + F + 'magic key'),
> it works with system is running, but failed after I trigger a panic, I will
> check more though I'm not very familiar with sysrq yet.
> 

Thanks! I'm not entirely sure if people still do this. I just saw the
code in linux 2.4 and assumed that this still might be the case.

Well, "theoretically, why not" :) The system can panic() because
of misbehaving video driver, for instance, so the emergency sync
still should be possible.

But maybe it's all irrelevant, I don't know.

	-ss