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Thu, 04 Dec 2025 09:40:31 -0800 (PST) Message-ID: Date: Thu, 4 Dec 2025 10:40:29 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Linux 6.18 amdgpu build error To: "David Hildenbrand (Red Hat)" , Linus Torvalds , akpm@linux-foundation.org Cc: Alexander Deucher , Linux Kernel Mailing List , amd-gfx@lists.freedesktop.org, dri-devel , Guenter Roeck , Linux Memory Management List , Shuah Khan References: <74032153-813a-4a40-8363-cce264f4d5ea@linuxfoundation.org> <1eb24816-530b-4470-8e58-ce7d8297996c@roeck-us.net> <0425d7b4-76e4-4057-83a5-a7b17a051c54@linuxfoundation.org> <9d520a1d-0b8d-4d30-b29f-230fc0f92b8a@linuxfoundation.org> <1f31b86d-283c-4878-92d0-ab90aed0c58d@roeck-us.net> <5af4522e-30ab-4eec-a861-c2760cdabd4f@linuxfoundation.org> <2bc690ca-fa57-46fa-949b-28b5441cd364@kernel.org> Content-Language: en-US From: Shuah Khan In-Reply-To: <2bc690ca-fa57-46fa-949b-28b5441cd364@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: CDC8740008 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: e7rrsuf34iost9pbjm7yxuz5jeqe4k9w X-HE-Tag: 1764870032-248383 X-HE-Meta: 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 s08ZVX5S TMls2Ugn7/yt6jTF8gCGc/STkkn6U3A5Ql6BSoLMuXlGsVmQlfksAyGSwxkgz1hH38+530KKmYS7NU99M00Mn6LQM26CsFDM9NR2qdaREZGP2yWxvcsDl1RdRWbwGXEnnJjWlIYtUiQLY5TqmCZaDwxE5GikHPVvnsW8e/2F/E+TLPpFnljCHIQCOPqDTgAcUmygWsUXUg2kF50t2uK+s7lLzhPwFAF1SDPq1dkYmCOkR20a6Ey8J+Eb0Ar7HUaYMiYAH2ch5SRZ/3CgZVJuVOTeH6/GBBAPJrF/Fd8fnhya38Mw+S6kOJStWyD8m345t2Ye9FAiy8vnssNBNDIeHFX2isn2T6gOkzWtEwbdmh+Cjmu31cw7JAHjJ30VwYpr+bBA22eDXPUxJECw= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 12/3/25 23:05, David Hildenbrand (Red Hat) wrote: > On 12/4/25 03:34, Shuah Khan wrote: >> On 12/3/25 18:06, Guenter Roeck wrote: >>> On 12/3/25 14:16, Shuah Khan wrote: >> >>>> >>>> CONFIG_RANDSTRUCT is disabled and so are the GCC_PLUGINS in my config. >>> >>> I guess that would have been too easy... >>> >>>> I am also seeing issues with cloning kernel.org repos on my system after >>>> a recent update: >>>> >>>> remote: Enumerating objects: 11177736, done. >>>> remote: Counting objects: 100% (1231/1231), done. >>>> remote: Compressing objects: 100% (624/624), done. >>>> remote: Total 11177736 (delta 855), reused 781 (delta 606), pack-reused 11176505 (from 1) >>>> Receiving objects: 100% (11177736/11177736), 3.01 GiB | 7.10 MiB/s, done. >>>> Resolving deltas: 100% (9198323/9198323), done. >>>> fatal: did not receive expected object 0002003e951b5057c16de5a39140abcbf6e44e50 >>>> fatal: fetch-pack: invalid index-pack output >>>> >>> >> >> Linus, Andrew, and David, >> >> Finally figured this out. I narrowed it to  to be the HAVE_GIGANTIC_FOLIOS >> support that went into Linux 6.18-rc6 in this commit: >> >>   From 39231e8d6ba7f794b566fd91ebd88c0834a23b98 Mon Sep 17 00:00:00 2001 >> From: "David Hildenbrand (Red Hat)" >> Date: Fri, 14 Nov 2025 22:49:20 +0100 >> Subject: [PATCH] mm: fix MAX_FOLIO_ORDER on powerpc configs with hugetlb >> > > Unsuspected and confusing :( This commit has impact on all architectures, not a narrow scoped powerpc only thing - it enables HAVE_GIGANTIC_FOLIOS on x86_64 and changes the common code that determines MAX_FOLIO_ORDER in include/linux/mm.h > > Let me take a look at reply on the revert. > Sounds good. Reverting or finding a fix is good with me. It definitely impacted two of my systems and the problem was introduced in Linux 6.18-rc6 and is in Linux 6.18. thanks, -- Shuah