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 00AF0634; Wed, 16 Jul 2025 00:08:53 +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=1752624534; cv=none; b=OqC+/r/LOmK+IkAlrMei8squJNROW3O8nVHmiGtCCYlUGzOCAa+gjgzG3JysH1kTjoQlk4pANDYKeSDMTx0Tra2qoVvpLJh+RcWpfcq2M1axAt+wAXAkKK7miw0QZJ1hweeOQIeCtTYNqgH7fm2oJTA0XOFv6mxX7lcI4irXkoQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752624534; c=relaxed/simple; bh=XdTozw9SeWnYJKO34jlRMm1atgrylh7X/YNvThna1SI=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=LXpJQlDcxo9GvV+LuVweHMl+GstI4QZITLtldJdc7m9UosjIIkqKh8Gre5+ZY1I22+R0ng3FCCqqJXjbSpwC/xYoQLRVOAo/KeS/s1ea5wWjDCoTiWGOKFLJ6Bwzt6np8cZOSp3r2CpShwOsp3Y52k9H06eSyr7t/1YbAFLuK3c= 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=dlnIusNm; 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="dlnIusNm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A6A7C4CEE3; Wed, 16 Jul 2025 00:08:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1752624533; bh=XdTozw9SeWnYJKO34jlRMm1atgrylh7X/YNvThna1SI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=dlnIusNm7JiiK5MYJ5R+EFfeHMi9x8k5Xosd+TG1LASG2W8Y0rHcTMqs+0Vui+e9p QsRGbIcpBj5U09553O3+GQ8dXv10Ofu35Kkayy4Fd65sNT+NySe1NFqSELuw5fuW3N 8YeTjUVReHhLf68gl3HvCrFCoTwB3ViL2ui0hUBA= Date: Tue, 15 Jul 2025 17:08:52 -0700 From: Andrew Morton To: syzbot Cc: andrii@kernel.org, david@redhat.com, hdanton@sina.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, lorenzo.stoakes@oracle.com, surenb@google.com, syzkaller-bugs@googlegroups.com, linux-mm@kvack.org Subject: Re: [syzbot] [fs?] WARNING: bad unlock balance in query_matching_vma Message-Id: <20250715170852.e616b82a53a88e757ee342af@linux-foundation.org> In-Reply-To: <687628be.a00a0220.3af5df.0002.GAE@google.com> References: <68757288.a70a0220.5f69f.0003.GAE@google.com> <687628be.a00a0220.3af5df.0002.GAE@google.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-fsdevel@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 Tue, 15 Jul 2025 03:09:02 -0700 syzbot wrote: > syzbot has bisected this issue to: > > commit fb8a9ee1f05345b1fae37902d32d954d2150437b > Author: Suren Baghdasaryan > Date: Fri Jul 4 06:07:26 2025 +0000 > > fs/proc/task_mmu: execute PROCMAP_QUERY ioctl under per-vma locks > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=171c27d4580000 > start commit: a62b7a37e6fc Add linux-next specific files for 20250711 > git tree: linux-next > final oops: https://syzkaller.appspot.com/x/report.txt?x=149c27d4580000 > console output: https://syzkaller.appspot.com/x/log.txt?x=109c27d4580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=bb4e3ec360fcbd0f > dashboard link: https://syzkaller.appspot.com/bug?extid=d4316c39e84f412115c9 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ad50f0580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1173018c580000 > > Reported-by: syzbot+d4316c39e84f412115c9@syzkaller.appspotmail.com Thanks. This email (and the original bug report) lacked a cc:linux-mm@kvack.org. > Fixes: fb8a9ee1f053 ("fs/proc/task_mmu: execute PROCMAP_QUERY ioctl under per-vma locks") Could I suggest that your scripts be altered to parse the fb8a9ee1f053 changelog for its Link:, fetch the submitter's original email and from that, figure out which mailing list(s) were cc'ed? > For information about bisection process see: https://goo.gl/tpsmEJ#bisection Suren, I'll drop the v6 series from mm-new. Links which I have accumulated are: https://lkml.kernel.org/r/6871f94b.a00a0220.26a83e.0070.GAE@google.com https://lkml.kernel.org/r/f532558b-b19a-40ea-b594-94d1ba92188d@lucifer.local https://lkml.kernel.org/r/687628be.a00a0220.3af5df.0002.GAE@google.com https://lkml.kernel.org/r/687628be.a00a0220.3af5df.0002.GAE@google.com