From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 DCBC3282FA for ; Thu, 26 Sep 2024 20:47:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727383633; cv=none; b=jg4RNt2bTzeJUJ/kC8VMhSYYhVTGmjzCkw6KDW6PmqJMgnMObl/7YtQLb7t5PVhKE4h4IyTm7cu8sU+JOk79vH3l57kqjJJSoMHqvGuAIBaKOPEJjISKK32IummsjaPcBTuHuBNFZeH/YieUmSQez8L3BMbsO/aX6JiCIMBsSZk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727383633; c=relaxed/simple; bh=p6BEhbVfq/NrBLwnvfSaWcgE4gJvgiGMTyCgFQpBgUg=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=WcjLFj0/aVtSmi+jBpAfjrbhh7HhL4xNBIIMg9g/c4p2kf9cLBUEd9E+2xIVNRNAa4SPkHbW5eF8Y0JXzp/LRs/ovYvVedwB19FGkI/zQi5QFYuHVVh9SfSmFuhrWjKuOsUlVg5N1mcEBWDXBeQgi6Y9t+AVbltVuJdGO0nPYjQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=V/rDDouB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="V/rDDouB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 22DB6C4CEC5; Thu, 26 Sep 2024 20:47:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1727383633; bh=p6BEhbVfq/NrBLwnvfSaWcgE4gJvgiGMTyCgFQpBgUg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=V/rDDouBjdNcWrH6JRKCAugyirykGI0GU3NrrFCydFRtIPRfxbo/o6ccW2wnYBML9 F0NZond9aRczQtzs2iKYknjEaoOxEMeA4fMPl6CPl/5YsIbJPz0kNuknftuDQObJm0 /s9i3PW04taTy6e3rjXlCGE7yCduOvFlZsrrfSgM= Date: Thu, 26 Sep 2024 13:47:12 -0700 From: Andrew Morton To: syzbot Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, pasha.tatashin@soleen.com, syzkaller-bugs@googlegroups.com, Peter Xu Subject: Re: [syzbot] [mm?] kernel BUG in page_table_check_clear (2) Message-Id: <20240926134712.e99b7e7068ecc45f7cd00f16@linux-foundation.org> In-Reply-To: <66f4f173.050a0220.211276.003c.GAE@google.com> References: <66f4f173.050a0220.211276.003c.GAE@google.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 25 Sep 2024 22:30:27 -0700 syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 1ec6d097897a Merge tag 's390-6.12-1' of git://git.kernel.o.. Thanks. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=173cdca9980000 > kernel config: https://syzkaller.appspot.com/x/.config?x=6265dd30e362bb47 > dashboard link: https://syzkaller.appspot.com/bug?extid=645f216781b26a92a732 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12fcb080580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17b76c27980000 Seems to be memfd-related. Will the bot be performing a bisection search? > > ... >