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b=KklHRCGkDUYjS72U1qRtDhtEg9UfMnt/kksbXXpetXl8xnJ/asICTAiAlAfinDn7G 1LQIdwKABYIdV7ZLQDfLnYXo4YZRBJjiMKYFA1WaIOxVJLwRsocB4+nZo6e45135aN nOsz3ogmJ0GgEL+GeJaYUD9HSFx6qtqiq/05gDBY= Date: Wed, 7 Jan 2026 10:50:21 -0800 From: Andrew Morton To: Mark Brown Cc: Claudiu Beznea , Kefeng Wang , David Hildenbrand , Oscar Salvador , Muchun Song , linux-mm@kvack.org, sidhartha.kumar@oracle.com, jane.chu@oracle.com, Zi Yan , Vlastimil Babka , Brendan Jackman , Johannes Weiner , Matthew Wilcox Subject: Re: [PATCH v5 mm-new 0/6] mm: hugetlb: allocate frozen gigantic folio Message-Id: <20260107105021.7ceb5bc13847e85385f69ef0@linux-foundation.org> In-Reply-To: <13ad5888-2d53-40c8-9269-22bc6001754a@sirena.org.uk> References: <20251230072422.265265-1-wangkefeng.wang@huawei.com> <4211be25-3fc0-4395-9b24-a5ff0b3caa34@tuxon.dev> <13ad5888-2d53-40c8-9269-22bc6001754a@sirena.org.uk> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam02 X-Stat-Signature: eiq3tpmu4ru4bi96ruio1xaz8yxdqx6h X-Rspam-User: X-Rspamd-Queue-Id: 7424F1A0014 X-HE-Tag: 1767811823-231226 X-HE-Meta: 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 ehH8g/Ep jF5L1jASvdDJSpV0/5/SB/z8mIwzbTWmaMZSR1o8l+d/+O4nVxTrtn36/AvIlEZwfMok8ah0KB+rDo/yRwEYU695unKVkHX1ct01Eg5FWmnCQH+GX/HMlgm+ouLQKLP05oFyZm/RSafw6iS0YEcWHl1W6DVx6JmbPkRWmCRuxKPfnea577/LI2UNVS96QobszY11GC91wJ4fmtzAFoYAXEkMA9In63dS5a+0JfLybx+xravv1ncPKJD1dH5e8TOFrQ0Ep9QYEUV1iPjUoFcPVpM75xg== 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 Wed, 7 Jan 2026 18:39:17 +0000 Mark Brown wrote: > On Wed, Jan 07, 2026 at 07:31:30PM +0200, Claudiu Beznea wrote: > > On 12/30/25 09:24, Kefeng Wang wrote: > > > > Introduce alloc_contig_frozen_pages() and cma_alloc_frozen_compound() > > > which avoid atomic operation about page refcount, and then convert to > > > allocate frozen gigantic folio by the new helpers in hugetlb to cleanup > > > the alloc_gigantic_folio(). > > > > I'm seeing the following issues on the Renesas RZ/G3S SoC when doing suspend > > to idle: > > > > [ 129.636729] Unable to handle kernel paging request at virtual address > > dead000000000108 > > [ 129.644674] Mem abort info: > > [ 129.647456] ESR = 0x0000000096000044 > > This is also introducing OOMs when doing at least audio tests (I don't > think these are super relevant) on Raspberry Pi 3B+ running NFS root > (probably more relevant): > > [ 64.064256] Unable to handle kernel paging request at virtual address fffffdffc1000000 Thanks. I'll fully drop this series from mm.git.