linux-kernel - Re: linux-next: workqueues tree build failure

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Message-ID: <20091127113808.GC29821@rakim.wolfsonmicro.main>
Date:	Fri, 27 Nov 2009 11:38:08 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Peter Ujfalusi <peter.ujfalusi@...ia.com>
Cc:	ext Tejun Heo <tj@...nel.org>, Takashi Iwai <tiwai@...e.de>,
	Andy Walls <awalls@...ix.net>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: workqueues tree build failure

On Fri, Nov 27, 2009 at 12:09:18PM +0200, Peter Ujfalusi wrote:

> For the record: on OMAP platforms the I2C implementation is sleeping during the 
> transfer (internally using interrupt based transfer), which might be not that 
> wise in the tasklet. Since the I2C bus is kind of a slow bus, this could take 
> several ms in some cases.

There's also the possibility of contention with other users of the I2C
bus which doesn't help matters here.
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