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Re: [PATCH v2 2/6] ieee1275: drop len -= 1 quirk in heap_init

From: John Paul Adrian Glaubitz
Subject: Re: [PATCH v2 2/6] ieee1275: drop len -= 1 quirk in heap_init
Date: Tue, 13 Dec 2022 17:11:23 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.1

On 12/1/22 22:11, Stefan Berger wrote:
From: Daniel Axtens <>

This was apparently 'required by some firmware': commit dc9468500919
("2007-02-12  Hollis Blanchard  <>").

It's not clear what firmware that was, and what platform from 14 years ago
which exhibited the bug then is still both in use and buggy now.

It doesn't cause issues on qemu (mac99 or pseries) or under PFW for Power8.

I don't have access to old Mac hardware, but if anyone feels especially
strongly we can put it under some feature flag. I really want to disable
it under pseries because it will mess with region merging.

I can test this on my iBook G4 but not this week as I am currently not at home.


 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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