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Date: Sat, 17 Aug 2024 05:32:35 +0200
From: Christoph Hellwig <hch@lst.de>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Niklas Cassel <cassel@kernel.org>,
	=?iso-8859-1?Q?Kolbj=F8rn?= Barmen <linux-ppc@kolla.no>,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	linux-ide@vger.kernel.org,
	=?utf-8?B?Sm9uw6HFoQ==?= Vidra <vidra@ufal.mff.cuni.cz>,
	Christoph Hellwig <hch@lst.de>, linux@roeck-us.net
Subject: Re: Since 6.10 - kernel oops/panics on G4 macmini due to change in
 drivers/ata/pata_macio.c
Message-ID: <20240817033235.GA28774@lst.de>
References: <62d248bb-e97a-25d2-bcf2-9160c518cae5@kolla.no> <3b6441b8-06e6-45da-9e55-f92f2c86933e@ufal.mff.cuni.cz> <Zrstcei9WN9sRfdX@x1-carbon.wireless.wdc> <87sev81u3f.fsf@mail.lhotse> <Zrt028rSVT5hVPbU@ryzen.lan> <87jzgj1ejc.fsf@mail.lhotse> <Zry58qB80V80uS38@ryzen.lan> <87jzgg2fqg.fsf@mail.lhotse>
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User-Agent: Mutt/1.5.17 (2007-11-01)

On Sat, Aug 17, 2024 at 09:46:31AM +1000, Michael Ellerman wrote:
> Same behaviour on a kernel with PAGE_SIZE = 4KB.
> 
> I don't know why max_sectors_kb starts out with a different value on my
> system, but anyway the bug is lurking there, even if it doesn't trip by
> default in some configurations.

Various distributions use udev rules to increase it.