From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D5A2829CEB for ; Sun, 10 Aug 2025 14:50:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754837405; cv=none; b=oV1zuTowa7Q0yDy9O382wHJqMUNXZE6ugNDHKGj098Vkdvl4ru57Ziwefet8UVAmHS9bJgh7YTYayrJoGG7LzDC6aXEXX+I/eo75ZX9YV/my8YjVss8fjbemND0sClALm1xg8JL0y/+6KXCfqLQhEVFisLUaR5yhnkmrjBwCT1M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754837405; c=relaxed/simple; bh=+pEXslFSW8f8UiaL/v+ygF+Q81rPI5CbwaLn9YRGf7I=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=KH5XVwb91PGs26XynwePq2wEQnbxLb3zSsqOCNcIEY7QXjE7K6y9DkbyngoxuAGd4A1zkO7RxxANTwikNdtAmCbitC37JqnRZIFm0odNmiDHQUN9P56iR9Knv45RuUL9umg3u1m+M71m8QGSkl54Ykm5VXsKzAQ64eDZX6wN/5E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-88177a20e0fso778685839f.0 for ; Sun, 10 Aug 2025 07:50:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1754837403; x=1755442203; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=60eUBaP4S1YM8bshFqm4Sr3laTofYKn/0WXOd9xAoMg=; b=YWRe17E6rshR4y4zvPSxCeYI+n7AWtKNn/Tq8pkikQZY0gsHysNrSoFbBqbuq/Dk4R LYHMBxk9wpJgPNtULfh/Qw1Wkod+uDmTQrNv8ywd2jcrd/DVuPtuMzGhF0/b/UfV6lOt eao9/jeNnsBhkzli6rYi9IMMJ+9WTg3GMekvcNZOnh+6G4NS4to/+g1WwLfbkCsmso88 oDpb39nlatg6jJR166+prYLcuxkR2+9UntjClVTbrtI3SAzfqWi0CgKyNuvhcylOfZ7g 99GNsyEV1it/NNKk/3TWxMnyjsv+qhcoHOxYrAH9rnsljLWFhywNmTi67I4YpfMLiJCw VZgg== X-Forwarded-Encrypted: i=1; AJvYcCVTm0/+enf22WTM4QBI9UZ65W6E/gJl1jdKeBldXZsS5U3iI0IjdwCrA040kXy+M1mYiCMiXEfUQlZSUUg=@vger.kernel.org X-Gm-Message-State: AOJu0YwH2uIg5g3krVEbd5fMmLEr3qhHdxE5PAEY1wLsvGnSCunBMRoD 1tcZ/MTtvXfEjpb9/CpWrxqgKKfEX5zUp7RNGjQddyZymxZOC4C4ZnAgsXcs5nnoD+IFEIENDDD iDV8NIjlTaRy00WzQbUh2+/e4G7NUKgDFEAXDhpoOSskkB20HLz2g5snu+9k= X-Google-Smtp-Source: AGHT+IGf9Dq1NnHv965MWqAJj5twYpG+w/zwXyElvrhHtv8GVEAHg8eBNnkmhJP75MeCWIFzQEBVoBse4UZb0smPCb1kIzGobyZe Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a5d:9ac1:0:b0:87c:49fe:cafe with SMTP id ca18e2360f4ac-883f1255323mr1470374339f.11.1754837403031; Sun, 10 Aug 2025 07:50:03 -0700 (PDT) Date: Sun, 10 Aug 2025 07:50:03 -0700 In-Reply-To: <6897b156.050a0220.51d73.0082.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6898b19b.050a0220.7f033.00cf.GAE@google.com> Subject: Re: [syzbot] [mm?] WARNING in try_to_migrate_one (3) From: syzbot To: Liam.Howlett@oracle.com, akpm@linux-foundation.org, david@redhat.com, dev.jain@arm.com, harry.yoo@oracle.com, hdanton@sina.com, liam.howlett@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, riel@surriel.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, ziy@nvidia.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit cac1db8c3aad97d6ffb56ced8868d6cbbbd2bfbe Author: Dev Jain Date: Fri Jul 18 09:02:43 2025 +0000 mm: optimize mprotect() by PTE batching bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12ac8842580000 start commit: 0227b49b5027 Merge tag 'gpio-updates-for-v6.17-rc1-part2' .. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=11ac8842580000 console output: https://syzkaller.appspot.com/x/log.txt?x=16ac8842580000 kernel config: https://syzkaller.appspot.com/x/.config?x=2ae1da3a7f4a6ba4 dashboard link: https://syzkaller.appspot.com/bug?extid=63859a31071a369082b1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117c72f0580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17ab7ea2580000 Reported-by: syzbot+63859a31071a369082b1@syzkaller.appspotmail.com Fixes: cac1db8c3aad ("mm: optimize mprotect() by PTE batching") For information about bisection process see: https://goo.gl/tpsmEJ#bisection