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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
	Christian Zigotzky <chzigotzky@xenosoft.de>,
	linuxppc-dev@lists.ozlabs.org, Christoph Hellwig <hch@lst.de>,
	Larry Finger <Larry.Finger@lwfinger.net>
Subject: Re: [BISECTED REGRESSION] b43legacy broken on G4 PowerBook
Date: Thu, 06 Jun 2019 20:56:54 +1000	[thread overview]
Message-ID: <d87ac9a7faac0d5522cb496d74afc586410fed9c.camel@kernel.crashing.org> (raw)
In-Reply-To: <20190606093149.GA11598@darkstar.musicnaut.iki.fi>

On Thu, 2019-06-06 at 12:31 +0300, Aaro Koskinen wrote:
> Hi,
> 
> On Thu, Jun 06, 2019 at 10:54:51AM +1000, Benjamin Herrenschmidt
> wrote:
> > On Thu, 2019-06-06 at 01:50 +0300, Aaro Koskinen wrote:
> > > Hi,
> > > 
> > > When upgrading from v5.0 -> v5.1 on G4 PowerBook, I noticed WLAN
> > > does
> > > not work anymore:
> > > 
> > > [   42.004303] b43legacy-phy0: Loading firmware version 0x127,
> > > patch level 14 (2005-04-18 02:36:27)
> > > [   42.184837] b43legacy-phy0 debug: Chip initialized
> > > [   42.184873] b43legacy-phy0 ERROR: The machine/kernel does not
> > > support the required 30-bit DMA mask
> > > 
> > > The same happens with the current mainline.
> > 
> > How much RAM do you have ?
> 
> The system has 1129 MB RAM. Booting with mem=1G makes it work.

Wow... that's an odd amount. One thing we could possibly do is add code
to limit the amount of RAM when we detect that device....

Cheers,
Ben.



  reply	other threads:[~2019-06-06 10:58 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-05 22:50 [BISECTED REGRESSION] b43legacy broken on G4 PowerBook Aaro Koskinen
2019-06-06  0:54 ` Benjamin Herrenschmidt
2019-06-06  9:31   ` Aaro Koskinen
2019-06-06 10:56     ` Benjamin Herrenschmidt [this message]
2019-06-06 10:57       ` Benjamin Herrenschmidt
2019-06-06 11:43         ` Christoph Hellwig
2019-06-06 19:26           ` Larry Finger
2019-06-06 20:11           ` Larry Finger
2019-06-06  3:06 ` Larry Finger
2019-06-06  6:40   ` Christoph Hellwig
2019-06-07 17:25 ` Larry Finger
2019-06-07 17:29   ` Christoph Hellwig
2019-06-07 18:50     ` Larry Finger
2019-06-08 21:52     ` Larry Finger
2019-06-10  8:18       ` Christoph Hellwig
2019-06-10 16:09         ` Larry Finger
2019-06-11  6:05           ` Christoph Hellwig
2019-06-11 22:20             ` Larry Finger
2019-06-11 22:46               ` Aaro Koskinen
2019-06-12  1:57                 ` Larry Finger
2019-06-11 22:46               ` Benjamin Herrenschmidt
2019-06-12  1:52                 ` Larry Finger
2019-06-12  3:32                   ` Benjamin Herrenschmidt
2019-06-12  6:55               ` Christoph Hellwig
2019-06-12 19:41                 ` Larry Finger
2019-06-12 21:59                   ` Benjamin Herrenschmidt
2019-06-13  7:29                     ` Christoph Hellwig
2019-06-11 17:48           ` Andreas Schwab
2019-06-08  4:21   ` Benjamin Herrenschmidt
2019-06-08  7:23     ` Christoph Hellwig
2019-06-10 18:44     ` Larry Finger
2019-06-11  5:56       ` Benjamin Herrenschmidt
2019-06-11  6:08         ` Christoph Hellwig
2019-06-11  6:58           ` Benjamin Herrenschmidt
2019-06-11  6:59             ` Benjamin Herrenschmidt
2019-06-11  7:54               ` Christoph Hellwig
2019-06-11  9:04                 ` Benjamin Herrenschmidt
2019-06-11  7:53             ` Christoph Hellwig

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