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Thu, 13 Aug 2026 15:23:15 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id bbjcH2PhfWoOeAAAD6G6ig (envelope-from ); Thu, 13 Aug 2026 15:23:15 +0000 Date: Thu, 13 Aug 2026 16:23:13 +0100 From: Pedro Falcato To: "Lorenzo Stoakes (ARM)" Cc: "Nikunj A. Dadhania" , Mike Rapoport , Dave Hansen , Andrew Morton , Andy Lutomirski , Borislav Petkov , David CARLIER , David Hildenbrand , Ingo Molnar , Jason Gunthorpe , Jiri Slaby , Juergen Gross , Kevin Tian , Kiryl Shutsemau , "Liam R. Howlett" , Lu Baolu , "H. Peter Anvin" , Peter Zijlstra , Shakeel Butt , Steffen Dirkwinkel , Suren Baghdasaryan , Thomas Gleixner , Toshi Kani , Vishal Moola , Vlastimil Babka , Will Deacon , iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org, stable@vger.kernel.org, syzbot@syzkaller.appspotmail.com, x86@kernel.org Subject: Re: [PATCH v2 0/5] x86/mm/pat: CPA fixes Message-ID: References: <20260813-cpa-fixes-v2-0-39b4ff90f91d@kernel.org> <9cfaa5d1-83b4-4b88-bf3a-05d2e074cadf@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Action: no action X-Stat-Signature: sezc5q1hrqu1j36nrtwjamjpiis9fy18 X-Rspamd-Queue-Id: 60646A0003 X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1786634607-698653 X-HE-Meta: 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 WA2B9Ena dYnw4BjTI5tbbvGSc3LLZFtJRVl1QEE+0lqoX+7RmjieBkn5aDu7R7UuBn9g/UQcJRHo3RK2wFy6WKPPE10KFd+XgYpbcApdAn20+iblvp1X4im8wcqmO/TzE8mWqLEdzQiBlDleVujYMEGPFV3F4aNgSp8EZswdewpfSoqsrAncXCymeOgYsQ7pAi/nISAAtryaqad2Bov1KloN5PMr10F6QvaPNFC4IbZZrV0RtmEER3GOIGlElPWULxBLO6aigejpugGvuXAEGIl4eMtfChoYaI56G5wdWTidPHCyX3zObLix9yVXhGBy0jTGEFwmiByPDGy2lvRtCz9M9/V5tHTYcvtNK9UKKrSavYKS8D+W2Su97Ji+4TGyC556l+fcyVPLtidN2KlK1m/VFk8EzLzkQC3CZuBZe4pqQWGeG/39ydXs= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Aug 13, 2026 at 04:07:38PM +0100, Lorenzo Stoakes (ARM) wrote: > On Thu, Aug 13, 2026 at 08:35:21PM +0530, Nikunj A. Dadhania wrote: > > > > Tested v2 on a 512-guest concurrent boot harness across 200 iterations > > with no splats. Both crash signatures reported in [1] are no longer seen. > > > > Tested-by: Nikunj A Dadhania Nice! > > Thanks so much for the testing! > > And all credit to Pedro for reporting and contributing the key commit that > resolves this issue :) And all credit to you for starting this flurry of fixes and patches that solve Critical Kernel Issues(tm)! My fix would be nothing without yours! -- Pedro