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Mon, 03 Feb 2025 11:25:03 -0800 (PST) Date: Mon, 03 Feb 2025 11:25:03 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67a1180f.050a0220.163cdc.004f.GAE@google.com> Subject: Re: [syzbot] [mm?] kernel BUG in alloc_hugetlb_folio_reserve From: syzbot To: akpm@linux-foundation.org, david@redhat.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, muchun.song@linux.dev, steven.sistare@oracle.com, syzkaller-bugs@googlegroups.com, vivek.kasireddy@intel.com Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 7B55240002 X-Stat-Signature: np3q3go8s3xmr1rtkgktcwq1u5km1str X-HE-Tag: 1738610704-388509 X-HE-Meta: U2FsdGVkX18NKyc3rOz7u9z6A+yHC2J7c9dNA3BJingwA2JW5gwJujSDaDsyYXqhzZz5NO74bk6DkVeh4tkOl8DmCJX0oR8IfU+Ovn1yXVQiG21oSMlTBAPsEt6TUME+nOh8AgCDqspah0QFYzSxSxKQrtCvLso5LD7p9eMc2x86Y4+cUZ/FNvGFUtvdZlZ3/+bEK7keCed+vG6nQbygScVhXCZiP1nYxe4Nx2tQ6pfXwTNVAs9pHBdoi1GvU547uI5y9y+JN0shQ2h5fFVeTrJXRFQQ9lAk+ohfklBCCPeRMWdmiNrCUCK8eBCotNCzyxe17ebmP0Dtdakgem0AQmbmyHN7hZEaTui074HwUB1eJ/qQyUkgUC/WXg1WwZxGz0VeC7NmxSmT9H42+jz5G3rgNPlGnOIgaNg6TT4shv950bpeHkmih3lsi0FvvZvWcHP3XqJ1BWWKig6VGp/i94y6TYOfDm2S8uPdHiny064n78v3A38VuUBXjbwb8LeDuKIbF3yhDsrCXrjxj1dzCh+s1tvQ2evVP/xFgnOSO182cIcFyTCJKyxCK6FDQtA5aemXb4Nyxdxonq7WaGrS/auD+lbKvJFlhSAT5vxdjm9EdmUY3+XBqS3Gn9p2KMFVhUzeXRP73ftotOx1lJxYyqWjxJMdrzW2GBQEjdkjWZn028oUlT44IHcFLsNQlDH1Y/MRYmdadfEQm07SB1x7klifSeecY2fubfd/HdovS1GJyMPVhikiPWo0/DOERJc5DlX1TkzbhLdJAo3mxepVfpr2FK7qFlYeC9piXYrIq/wk/I0zXDAMx08LDi+t5PkgdhyYh/9yFldMF51H8JVYuJ9Ssy6uSJcxsnPW4PL0Vb9WsfDqLYr07zolfWI5VM1t0FYPfniEclF/xHjx8Jzt3GfnLqvN4ZW4qvVhtVS3W6ovtnXUmBVHL0LtStccQdqf7glGjFPwnu6kssJufmt pKxVW0JJ 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 rjp7nrHW vU6YcsOrg8C89nAL7rH3WJM/YJlAH5jl 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: Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+a504cb5bae4fe117ba94@syzkaller.appspotmail.com Tested-by: syzbot+a504cb5bae4fe117ba94@syzkaller.appspotmail.com Tested on: commit: d1302efc selftests/udmabuf: add a test to pin first be.. git tree: https://gitlab.freedesktop.org/Vivek/drm-tip.git syzbot_fix_htlb_reserve_v2_rebase console output: https://syzkaller.appspot.com/x/log.txt?x=114b75f8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=3ed8e2f9a4233102 dashboard link: https://syzkaller.appspot.com/bug?extid=a504cb5bae4fe117ba94 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.