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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Cc: ext Tejun Heo <tj@kernel.org>, Takashi Iwai <tiwai@suse.de>,
	Andy Walls <awalls@radix.net>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	"linux-next@vger.kernel.org" <linux-next@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: linux-next: workqueues tree build failure
Date: Fri, 27 Nov 2009 11:38:08 +0000	[thread overview]
Message-ID: <20091127113808.GC29821@rakim.wolfsonmicro.main> (raw)
In-Reply-To: <200911271209.18979.peter.ujfalusi@nokia.com>

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.

  reply	other threads:[~2009-11-27 11:38 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-26  8:00 linux-next: workqueues tree build failure Stephen Rothwell
2009-11-26  8:04 ` Tejun Heo
2009-11-26  8:16   ` Peter Ujfalusi
2009-11-26  9:12     ` Tejun Heo
2009-11-26  9:24       ` Takashi Iwai
2009-11-26  9:31       ` Peter Ujfalusi
2009-11-26 10:18         ` Mark Brown
2009-11-26 11:44           ` Peter Ujfalusi
2009-11-26 12:49             ` Andy Walls
2009-11-26 13:23               ` Peter Ujfalusi
2009-11-26 12:40       ` Andy Walls
2009-11-26 12:56         ` Mark Brown
2009-11-27  2:02         ` Tejun Heo
2009-11-27  8:37           ` Takashi Iwai
2009-11-27  8:42             ` Tejun Heo
2009-11-27 10:09               ` Peter Ujfalusi
2009-11-27 11:38                 ` Mark Brown [this message]
2009-11-27 13:50           ` Andy Walls

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