linux-kernel - Re: [4.0-rc+] WARNING: CPU: 0 PID: 1 at ./drivers/dma/dmaengine.c:863 dma_async_device

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Date:	Wed, 8 Apr 2015 11:09:55 -0500
From:	Felipe Balbi <balbi@...com>
To:	Peter Hurley <peter@...leysoftware.com>
CC:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Vinod Koul <vinod.koul@...el.com>, Felipe Balbi <balbi@...com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: [4.0-rc+] WARNING: CPU: 0 PID: 1 at
 ./drivers/dma/dmaengine.c:863 dma_async_device_register+0xe0/0x540()

On Wed, Apr 08, 2015 at 12:07:14PM -0400, Peter Hurley wrote:
> On 04/08/2015 11:59 AM, Maxime Ripard wrote:
> > On Wed, Apr 08, 2015 at 11:53:33AM -0400, Peter Hurley wrote:
> >> On 03/05/2015 11:12 AM, Vinod Koul wrote:
> >>> On Thu, Mar 05, 2015 at 10:04:21AM -0500, Peter Hurley wrote:
> >>>>> First boot of 4.0-rc+ gave me [1] on a Beaglebone Black due to
> >>>>>
> >>> The warning is intentional to get driver fixed and give the right behaviour
> >>>
> >>> Felipe had sent a patch for this but that one needs an update
> >>
> >> Vinod,
> >>
> >> Felipe's patch never made it to mainline, and this warning is 
> >> still happening on 4.0-rc7 so please revert for 4.0-final.
> > 
> > That patch isn't introducing any regression. I fail to see how that
> > justifies a revert so late in the release cycle.
> 
> Arguably it never should have been introduced in the first place, and
> this was at least known since Mar 5 (and likely earlier); arguing that
> it's late in the cycle is a bit disingenuous.

In Vinod's defense, he asked for changes in my patch which I didn't have
time to implement (as of yet). Have been rather busy lately with a bunch
of other things, I'll try to get to those changes ASAP, just need to
finish up a bisect on another platform.

cheers

-- 
balbi

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