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b=VWTaMfIeOOP/lMAc72JZ9F+C6ooFvDGxsX9IT+IW/oxsmvCObH1t8P56Gzd6D1Nch GavoV5Iw/Ua+zcBh0fKeEQ4mL3EuvvLemdYUwTVBlBGrnCGyLF5ebxhFhvlZGMI3d4 NsFeXYqGnlXFE3mvdlI50TqCjv7RzNnL7wR5ZqGa9+38NIxknWiQO2PaE2Eb9O3aTS ivQ3yr1Agx4vEDL2Yy2AIesQusfHTA36CGNagDAviujkZ5OVJxNqDJVUrXbwc9TIZ/ 7jHrdmNtHDe0OxywaKB0yBCIa20Tx+cA2bjGVtt0Rj6lJRPrNfu1BoxnoaQGXr6Y5j wVXfTH35RZxPg== Date: Wed, 18 Mar 2026 11:23:20 +0000 From: "Lorenzo Stoakes (Oracle)" To: Jiakai Xu Cc: LKML , linux-mm@kvack.org, Liam.Howlett@oracle.com, akpm@linux-foundation.org, david@kernel.org, harry.yoo@oracle.com, jannh@google.com, riel@surriel.com, vbabka@kernel.org Subject: Re: [BUG] WARNING in unlink_anon_vmas() Message-ID: <9f192045-f348-4341-8a45-867f4fd34a0b@lucifer.local> References: <12501051-98d4-479a-8f10-547b2c08ad59@lucifer.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <12501051-98d4-479a-8f10-547b2c08ad59@lucifer.local> X-Rspam-User: X-Stat-Signature: amh1rj5aek3n7z3zdddcp6ado66b5yh3 X-Rspamd-Queue-Id: 957E8160002 X-Rspamd-Server: rspam03 X-HE-Tag: 1773833008-685062 X-HE-Meta: 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 VwctkPUV VHWFJUstlSFILaXS1YDLCOm8WJm7OzLiGf7JxqfKzMkbRx+AlmKJsZ+KpPeQImpB0B8h40Y+vWGtX/S/3T6KC37JQb1p46hLMVUlwJotTMwLI3ZADi0FiNysW2AOUhAoNvEihWU9qDx1VCdqHV7A6JG6eJDozsTqXFZmkVDN1fyxL1ccUZU/EIlCUuPsjK3yPBtW2KEp5p8tilbEOvQfCd9ntYWpvWCunN5kS0NzYw9HqQoeZubcKQlqbc1g55PPqUXyJ/FjoMoYny/IRtChUDIVH1wYUmiTakbtI Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > On Wed, Mar 18, 2026 at 06:42:49PM +0800, Jiakai Xu wrote: > > If this turns out to be a real bug and there is anything I can do to help > > with fixing or testing, I am happy to do so. I hope this report is useful > > and sorry for any noise if it has already been addressed. > Do you happen to have a copy of the full dmesg output? Particularly looking for where the fault injections were made. Does this reliably repro for you consistently or is it now and again? If reliable repro, could you try it with the upstream tree also? e.g. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ at master? Much appreciated! Thanks, Lorenzo