From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-133.freemail.mail.aliyun.com (out30-133.freemail.mail.aliyun.com [115.124.30.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E0CD119D8A8 for ; Fri, 14 Jun 2024 15:51:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718380265; cv=none; b=i1fIqYeXvKhBFsjfJjyeLjl+i3agU2qwdjIAW0sEaVjH9GEs9qA51Mvywq44pCOao2FfALSA14NUUje3Ml1s4Yks+2ZprkopgnBE3DiopSmwZaYkcNP6W9SFis2mrKpQwotmZKml/oCzaTCayic13CgTyvlKWgWTr0bhBqAQ4Bc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718380265; c=relaxed/simple; bh=BvjgjlgucoXkEkKLtVSOVM2pyQUuUWHW5q5svClDKlA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=PUZJmmH+f5gSOJ0scVsd6ukhTXc1kZFTndmW4jMCGJ4Ln4tcghEZy6JLzvYWowi2nwQS715mHZ0U2yBW20NsAAmq6kQgjPe3z0wOlm0AonHe62LlkvO/cQY5RKRYt2R+pgTZKHvPdE7cNha+q/aNJLl31jydfPD7bx455TPowDk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=KFCBNwdv; arc=none smtp.client-ip=115.124.30.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="KFCBNwdv" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1718380260; h=Message-ID:Date:MIME-Version:Subject:To:From:Content-Type; bh=YYE4KSPkg1QQNyDaGn6/ggOWuxBN59PMEdzwWo8hCNY=; b=KFCBNwdvZzIbvhlA9XODWGUMtpibROQlSntBYUL71BdaJliJz9Vkd2CgJZmbmsXzmc+n0Mg9Ko4CW8WVRj7IeBgPzRhrubDLGJGcurV7xMhdnoNsEUhjhGda70P80Lo9ChLA2l6wj1ZGGdzd5kUMQ/VA+ki4YD4KbHM+Zrr1DgY= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R941e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037067110;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=5;SR=0;TI=SMTPD_---0W8RXOKv_1718380259; Received: from 192.168.0.106(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0W8RXOKv_1718380259) by smtp.aliyun-inc.com; Fri, 14 Jun 2024 23:50:59 +0800 Message-ID: <4fc95571-7815-458f-9d34-5109b1be7399@linux.alibaba.com> Date: Fri, 14 Jun 2024 23:50:58 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] BUG: Bad rss-counter state (5) To: syzbot Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com References: <0000000000007f58de061adb8ea6@google.com> From: Baolin Wang In-Reply-To: <0000000000007f58de061adb8ea6@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2024/6/14 23:49, syzbot wrote: >> >> >> On 2024/6/14 23:12, syzbot wrote: >>> syzbot has bisected this issue to: >>> >>> commit 1c05047ad01693ad92bdf8347fad3b5c2b25e8bb >>> Author: Baolin Wang >>> Date: Tue Jun 4 10:17:45 2024 +0000 >>> >>> mm: memory: extend finish_fault() to support large folio >>> >>> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=106e8e56980000 >>> start commit: d35b2284e966 Add linux-next specific files for 20240607 >>> git tree: linux-next >>> final oops: https://syzkaller.appspot.com/x/report.txt?x=126e8e56980000 >>> console output: https://syzkaller.appspot.com/x/log.txt?x=146e8e56980000 >>> kernel config: https://syzkaller.appspot.com/x/.config?x=d8bf5cd6bcca7343 >>> dashboard link: https://syzkaller.appspot.com/bug?extid=f2bbbb592debc978d46d >>> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17f57a36980000 >>> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10a57696980000 >>> >>> Reported-by: syzbot+f2bbbb592debc978d46d@syzkaller.appspotmail.com >>> Fixes: 1c05047ad016 ("mm: memory: extend finish_fault() to support large folio") >>> >>> For information about bisection process see: https://goo.gl/tpsmEJ#bisection >> >> Thanks. Please try the fix in mm-unstable branch >> >> #syz test: > > want either no args or 2 args (repo, branch), got 1 > >> https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?h=mm-unstable&id=4135d2688b42f097f78062ef328f3056db32e3a0 #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable