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AJvYcCVqkYHy8U+KSnYQtAiGATIzsoV8PU0Dco5BiLiWScDbSdxxliauZZ1w2EzBXrByjOFKGDyPMFN4ag==@kvack.org X-Gm-Message-State: AOJu0YzRwMlOGk8i2K9O+P4zLGWdahAH3DAEj2BCiWLJP8L8CwHhUggc Uc2dyMcj0BnHREejGfl3JzuSOetkmmdPSD4pEXX2oXIy/x8Eeb/+LjfPKQCOyi6Sv/8qr4YfMCO rrUa6ux3QbgGsYkb+7I3r8Nw/L1jr1ao= X-Gm-Gg: ASbGnctKNI4xJ1EtOAQf4BS/y7u65elx1A4JwoiOLedI5ee51qy1D5EseQ5/CgXvtA2 JJ4VTzJ+v4eeRFQ7flzvM02jBEscCUwucmwzYOUQfijnHjW+QxDVfRxZ8kedp4WTzjMBcDOlOMC 9FC/orNUhRExG8CZpmO+D7MneMGNkUK/O5ZNGOAct0tmx7Cz2+eJb9WPBddSoKmu9NocpX30UbH KMdkw== X-Google-Smtp-Source: AGHT+IE8Pb6AZ2C10wwVClkyKv4na1Ar/0egU5HgC6DvqFNcASZVAv1WZprTXfNXzWBc6PecsjCg9T7AYhLwDETxZGA= X-Received: by 2002:a05:690c:60c4:b0:711:a598:aa4b with SMTP id 00721157ae682-71517147b94mr135381897b3.10.1751180045151; Sat, 28 Jun 2025 23:54:05 -0700 (PDT) MIME-Version: 1.0 References: <20250627102904.107202-1-osalvador@suse.de> <20250627102904.107202-2-osalvador@suse.de> In-Reply-To: From: Oscar Salvador Date: Sun, 29 Jun 2025 08:53:52 +0200 X-Gm-Features: Ac12FXyuVigunvtzBqspgQ9_Z0xU9FfzwYRFqChW8eZjqmITjXmEGe1qgAkVvWc Message-ID: Subject: Re: [PATCH v3 1/5] mm,hugetlb: Change mechanism to detect a COW on private mapping To: Gavin Guo Cc: Oscar Salvador , Andrew Morton , David Hildenbrand , Muchun Song , Peter Xu , Linux Memory Management List , LKML Content-Type: multipart/alternative; boundary="0000000000008772fb0638b060d3" X-Stat-Signature: fu77og3f8njifqs3z9dq1kfkobq3xf9k X-Rspamd-Queue-Id: 31C5B120006 X-Rspam-User: X-Rspamd-Server: rspam07 X-HE-Tag: 1751180046-823428 X-HE-Meta: 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 Qv9ssZG0 gxlNIRnFeyob79otbnET/CUkRPw9k8rVL2MCibvmFQPGI1U2LBvKybeYUoiUROL5D/57a9lFRf69ABc92cKxdeN4mtoB05aqbYxDUgcxDs9OUP0yOfOGWnp4Nu7gGY4zVNX/oXUUkc5JD++nJDJWzv2GqnbhS7LUk6C4muKHEk65eHz7dq+3QeNVr9jYunhuKkAaTIXEKuMNUG5tVn84HSL7r+ljCQGlWV3nxdtdinsc3p1Naa2SUmPhT5VEs1FAJdxzBfF5oCA6LIco3LOR1mA0N0Bxki+Y30V+Np3u5XxlQTxwgC1FB30Z+bslsWwg0VY0opNCrH9lucEC6e+49X6ja7xVE2Md7mWj1RZMj2XU3eZtP6iyQ3JWPvpuFe4I3YYHkJ7UufBSe/TOg2Pq369KnmUtuTqY5kvTAeBtvG2YZj6+PUBApRqIOKQ6xy1KCZCaYglU+Vs+hb0vKYBNreLt1GuaT/2+5clBxWaqfNAo8d6j5qRHdPtO0CzlfsU3Qn6yEFsIOCQbz6hTU5gdraRRh3u2MAJ8TswL9QYWFp8P/06w= 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: --0000000000008772fb0638b060d3 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable El s=C3=A1b, 28 jun 2025, 11:22, Gavin Guo escribi=C3= =B3: > > Sorry for the late response. I've changed to a different project and > won't have time to work on this bug anymore. But, finally, I find time > on the weekend to conduct the testing. It appears that the ABBA deadlock > still exists. Please refer to the log: > Thanks Galvin for testing! I'll have a look when I'm back but I suspect thiz wants to be a trylock and bailout if we can't take it. --0000000000008772fb0638b060d3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable