linux-kernel - Re: mutex_lock_slowpath warning using mxser tty driver (input/output error)

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Message-ID: <20090402194401.154bbc36@lxorguk.ukuu.org.uk>
Date:	Thu, 2 Apr 2009 19:44:01 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Christophe Lermytte <christophe.lermytte@...mson.net>,
	linux-kernel@...r.kernel.org, Jiri Slaby <jirislaby@...il.com>
Subject: Re: mutex_lock_slowpath warning using mxser tty driver
 (input/output error)

> It appears to want to lock a mutex in interrupt context, something
> that's a definite no-no.
> 
> CCed the folks who might know a thing or two about the driver.

Moxa is not a USB driver so the USB trace at the end makes no sense at
all.

Alan
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