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Wed, 16 Jul 2025 21:53:04 -0700 (PDT) Date: Wed, 16 Jul 2025 21:53:04 -0700 In-Reply-To: <20250717023444.2281-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <687881b0.a70a0220.693ce.0038.GAE@google.com> Subject: Re: [syzbot] [mm?] possible deadlock in lock_next_vma From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, surenb@google.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 89B1FA0002 X-Stat-Signature: czmendtsob3n5faw5fcdb9d8tqus9sgc X-Rspam-User: X-Rspamd-Server: rspam11 X-HE-Tag: 1752727985-368917 X-HE-Meta: U2FsdGVkX1+RFAggJbrVSuvzFoZ2jXYaK94VzePgvXNwuZmU7SBlwJH2sey+pBc4Kzyjul/zALHgdDCYuqJ38YfhNNpes9CCO4WmLRG9nDL7pCrqNf4OiAa1wD8JUBDqW2yUo8GtmNIs7HBgYRjA2BeDvI2+VX6KyeXzIW2pbvsHSj9fX6N8GzsCKHoRRdJF0+FnkhgJzKRxcg3ndDLo0pnBrwOOoXJZDOLy8xGtfOZeSij6Ng+gA3VPGnBw17aMmwqL7GP+0DlU0aEPt45jICkunvlBJVPZhZaxBw0GJwPazv+aUO1MKjUAbLQG6igqjvS5cbr+dBbbPfqj8YIuipDscTV8ZThNYtiQ988Duyj30zit1FxjNOIKr/6LQpJDZjbLQjt++DhuYVKmnrRm9o0W+BvnulrXQVDMoGDSk+fHrBPPZlCEDDugipBvmyXgEhuhqGQkYVNkYNYeEWWTg2R6reA96Wq7+GTj6y+PX6jNdWNPtHi0oEd3IhKnMeAxWkgWEKlgytezpLLi5ry90JSGN2wBZ1rjBrSMNwVVPOlAGFncuvGlVOW/WT1zztmh+bfJbTh7CmvHEEuYjyBzUBe9nwDt09v9b6XTnaFooJirE5a8XrYUn7UaF2i26NHuov8De2uOjHHeqdc473hcuq9iYw8tvCJFXJnf0afHhw+2C6nNPRjcUTAw08qGR9LcnV8/NjS2tq3e07RvSMe8IYUKRQrAKwXmXSTJHtVrhD11/BhWMBOMzuhIimIGzhb70e3HGpQ/bdav714zGUP+CvSHMd9oGdm/InJFlSDbCCAweso/7SU+sYMy2HHxxeUkX3q7clZhM8xKnxUJdy/F78NSYxVxZWbhurBeynX/NELRX9fYM0SPdSkNAZ8IZa316cdtglVdAPdr/JRfdOWHrxC3mHWFLl7qfPcbXo43dTJCOytLrpP30xpzAtQJgfFEcOOLv8B3gpqc0GnVL/N xGnIoKkq 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 qqOKxRV1 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+159a3ef1894076a6a6e9@syzkaller.appspotmail.com Tested-by: syzbot+159a3ef1894076a6a6e9@syzkaller.appspotmail.com Tested on: commit: 760b462b mm: add zblock allocator git tree: git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new console output: https://syzkaller.appspot.com/x/log.txt?x=106c2d8c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=c39d2ebefebaec5f dashboard link: https://syzkaller.appspot.com/bug?extid=159a3ef1894076a6a6e9 compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.