netdev - Re: [RFC PATCH] net: ethtool: do runtime PM outside RTNL

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Date: Tue, 05 Dec 2023 20:33:02 +0100
From: Johannes Berg <johannes@...solutions.net>
To: Marc MERLIN <marc@...lins.org>
Cc: netdev@...r.kernel.org, Jesse Brandeburg <jesse.brandeburg@...el.com>, 
 Tony Nguyen <anthony.l.nguyen@...el.com>, intel-wired-lan@...ts.osuosl.org,
 Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: [RFC PATCH] net: ethtool: do runtime PM outside RTNL

On Mon, 2023-12-04 at 18:46 -0800, Marc MERLIN wrote:
> 
> [13323.572484] iwlwifi 0000:09:00.0: TB bug workaround: copied 152 bytes from 0xffffff68 to 0xfd080000
> [13328.000825] iwlwifi 0000:09:00.0: TB bug workaround: copied 1272 bytes from 0xfffffb08 to 0xff42c000
> [13367.278564] iwlwifi 0000:09:00.0: TB bug workaround: copied 1328 bytes from 0xfffffad0 to 0xfec41000
> [13389.737971] iwlwifi 0000:09:00.0: TB bug workaround: copied 572 bytes from 0xfffffdc4 to 0xff091000
> [13389.860480] iwlwifi 0000:09:00.0: TB bug workaround: copied 148 bytes from 0xffffff6c to 0xfe412000
> [13393.435354] iwlwifi 0000:09:00.0: TB bug workaround: copied 360 bytes from 0xfffffe98 to 0xfedcd000
> [13409.827199] iwlwifi 0000:09:00.0: TB bug workaround: copied 1348 bytes from 0xfffffabc to 0xfd057000

That's fine, just working around a HW bug on 2^32 address boundaries.

I had a patch a long time ago to make those messages not appear ... not
sure where it ended up.

johannes