linux-kernel - Re: [PATCH -mm] 8250: remove not needed NMI watchdog tickle in serial8250_console

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Message-ID: <20060915120357.GB6642@cathedrallabs.org>
Date:	Fri, 15 Sep 2006 09:03:57 -0300
From:	Aristeu Sergio Rozanski Filho <aris@...hedrallabs.org>
To:	Andrew Morton <akpm@...l.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -mm] 8250: remove not needed NMI watchdog tickle in serial8250_console_write()

> I disagree.
> 
> If characters are flowing out at a rate which consistently exceeds
> one-per-ten-milliseconds, the touch_nmi_watchdog() in wait_for_xmitr() will
> never be called.
> 
> Consequently a large interrupt-time write to the serial port (ie: sysrq-T
> with serial-console enabled) will cause the NMI watchdog to trigger.
> 
> No?
gah, you're right. please drop this one.
Thanks,

-- 
Aristeu

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