From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_DIGITS, FROM_LOCAL_HEX,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFE38C433B4 for ; Sun, 4 Apr 2021 15:15:15 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2E90661365 for ; Sun, 4 Apr 2021 15:15:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2E90661365 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 84E446B0070; Sun, 4 Apr 2021 11:15:14 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7FDB66B0073; Sun, 4 Apr 2021 11:15:14 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 677DE6B0075; Sun, 4 Apr 2021 11:15:14 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0028.hostedemail.com [216.40.44.28]) by kanga.kvack.org (Postfix) with ESMTP id 49D936B0070 for ; Sun, 4 Apr 2021 11:15:14 -0400 (EDT) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 092DB18041E6C for ; Sun, 4 Apr 2021 15:15:14 +0000 (UTC) X-FDA: 77995032948.19.BD14B73 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) by imf17.hostedemail.com (Postfix) with ESMTP id 285BA40002C6 for ; Sun, 4 Apr 2021 15:15:12 +0000 (UTC) Received: by mail-il1-f197.google.com with SMTP id n1so8057784ili.17 for ; Sun, 04 Apr 2021 08:15:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=dxD0Hg0qysVOsDo3bqgEGmetC7jdDlc6pL/RNn78V90=; b=qNtMeaZRQVafIHu3aZ9sA3KXZQaOAqNw+Z5aHCGccIoYAuFkEffwBnRcls01rghihy Vs3ejozPfSnMrQNJUOCMoHsyP2p2HiY1RyL8c6cjIoUmQ6Rp0q86L0ZZkMQ0+Gd/qHJ3 PLifUjTIyUoLAbYXwhNsuz+glE9D7mYfnV38h0SElAGa0yRZTsRIK8P53HTakR485ogp 82W5fDjy2m12+X9V1/vcXpAt5c+IOMlkkstQ18EYdhcpHElfNUduo1fL55eA7UoezGrG OMnC529bmG4RUYCCx1YJFFDWM15/nEGoT7i1wMkB2U/Jj9fJlnJ0+w8HScZk43m3mBMn gMIw== X-Gm-Message-State: AOAM531mSBySRZJGGO9oGgqUqFGamS6TdMNqhxJwNHmrJR3rR+nxjXb0 ynoj4ntvNvOtS0/dLnKECgIf4ATAbHZRAj/Mm/WCROskNIQz X-Google-Smtp-Source: ABdhPJzVQjsJDUibxgnfqxPohifHOtt7o3aW3XOo1HD1pnjGDI9XFknYFRBJTAwNYD8USisEec6RGddqZ2Y4Cla2IahmipYMa8yY MIME-Version: 1.0 X-Received: by 2002:a92:7b05:: with SMTP id w5mr16393092ilc.232.1617549313028; Sun, 04 Apr 2021 08:15:13 -0700 (PDT) Date: Sun, 04 Apr 2021 08:15:13 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000035b58705bf270c19@google.com> Subject: [syzbot] WARNING: suspicious RCU usage in list_lru_destroy From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 285BA40002C6 X-Stat-Signature: 3d3udd5dyq5sgjfza48psoi7tb79aqj9 X-Rspamd-Server: rspam02 Received-SPF: none (m3kw2wvrgufz5godrsrytgd7.apphosting.bounces.google.com>: No applicable sender policy available) receiver=imf17; identity=mailfrom; envelope-from="<3AdhpYAkbAGISYZKALLERAPPID.GOOGLEUSERCONTENT.COM@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com>"; helo=mail-il1-f197.google.com; client-ip=209.85.166.197 X-HE-DKIM-Result: none/none X-HE-Tag: 1617549312-54138 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: Hello, syzbot found the following issue on: HEAD commit: 5e46d1b7 reiserfs: update reiserfs_xattrs_initialized() co.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15556cced00000 kernel config: https://syzkaller.appspot.com/x/.config?x=71a75beb62b62a34 dashboard link: https://syzkaller.appspot.com/bug?extid=d7dd989878658902c6d6 compiler: Debian clang version 11.0.1-2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d7dd989878658902c6d6@syzkaller.appspotmail.com EXT4-fs (loop0): mount failed ============================= WARNING: suspicious RCU usage 5.12.0-rc5-syzkaller #0 Not tainted ----------------------------- kernel/sched/core.c:8294 Illegal context switch in RCU-bh read-side critical section! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 0 no locks held by syz-executor.0/10672. stack backtrace: CPU: 0 PID: 10672 Comm: syz-executor.0 Not tainted 5.12.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x176/0x24e lib/dump_stack.c:120 ___might_sleep+0x6e/0x530 kernel/sched/core.c:8294 down_read+0x17/0x50 kernel/locking/rwsem.c:1352 list_lru_destroy+0x49/0x390 mm/list_lru.c:628 deactivate_locked_super+0xbf/0xf0 fs/super.c:343 mount_bdev+0x288/0x3a0 fs/super.c:1369 legacy_get_tree+0xea/0x180 fs/fs_context.c:592 vfs_get_tree+0x86/0x270 fs/super.c:1497 do_new_mount fs/namespace.c:2903 [inline] path_mount+0x188a/0x29a0 fs/namespace.c:3233 do_mount fs/namespace.c:3246 [inline] __do_sys_mount fs/namespace.c:3454 [inline] __se_sys_mount+0x28c/0x320 fs/namespace.c:3431 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x46797a Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f77bde01fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 000000000046797a RDX: 0000000020000300 RSI: 0000000020000100 RDI: 00007f77bde02000 RBP: 00007f77bde02040 R08: 00007f77bde02040 R09: 0000000020000300 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000300 R13: 0000000020000100 R14: 00007f77bde02000 R15: 00000000200000c0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.