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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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Score: -2.51 X-Spam-Level: X-Rspamd-Action: no action X-Rspamd-Queue-Id: 91C01829B6 X-Spamd-Result: default: False [-2.51 / 50.00]; BAYES_HAM(-3.00)[99.99%]; SUSPICIOUS_RECIPS(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_RHS_NOT_FQDN(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; RCPT_COUNT_TWELVE(0.00)[33]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; RCVD_TLS_ALL(0.00)[]; TO_DN_SOME(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[amd.com,kernel.org,linux.intel.com,linux-foundation.org,alien8.de,gmail.com,redhat.com,ziepe.ca,suse.com,intel.com,infradead.org,zytor.com,linux.dev,steffen.cc,google.com,hpe.com,lists.linux.dev,vger.kernel.org,kvack.org,syzkaller.appspotmail.com]; TAGGED_RCPT(0.00)[]; MISSING_XM_UA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; DKIM_TRACE(0.00)[suse.de:+]; R_RATELIMIT(0.00)[to_ip_from(RLziudqfrzo6b7hzgpxksh1d9i)]; DBL_BLOCKED_OPENRESOLVER(0.00)[amd.com:email,suse.de:dkim,imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns] X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Flag: NO 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