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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 A1339ECE567 for ; Fri, 21 Sep 2018 17:24:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 28A6421568 for ; Fri, 21 Sep 2018 17:24:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 28A6421568 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390966AbeIUXNz (ORCPT ); Fri, 21 Sep 2018 19:13:55 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:47614 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390395AbeIUXNy (ORCPT ); Fri, 21 Sep 2018 19:13:54 -0400 Received: by mail-io1-f70.google.com with SMTP id v20-v6so23329118iom.14 for ; Fri, 21 Sep 2018 10:24:03 -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=Rr1IflITrDoO5M9kER5aRqmHpY5qAo2msvf2WNFxyrs=; b=Tq34aRxF87WrCJ9+Ttfx+/VyDsH2fauXeI59CMTKYcSNp9YASzCp54OCSCDdRhHk3d N4P1Qxr7wiyqXDx2DuN78F0nF0yIh7tR5HuWi/hN60fNjT6AFhjgL8Wc6CEnoVlQAFlv 1pbwbdSruxQoG7x14BM8WpCA2fG1sViobPDGrv7M/K+vo9dszMDnva4pqDOyN388lDyY hVjhJHJ87osEKzY21YBh91digqyxTNl2FeFkhsLD9ktSei0m99FI3iMck8hhimcpJqF2 JmYgHcfx+UuvW6zimHCToJTa1dEAzF2vSI6GL1EEJZikA807YKFRnfPBrUGFE0xZgdcU af3A== X-Gm-Message-State: APzg51CecqJMUB6cmfCYEzIylp3W4Ofd5Av+avP6dxEGCHurQoWcuwOH 27bE9Ty27WXImpsOmM3qsXbVFryeftfUtj4RAYdkOwFbfEHR X-Google-Smtp-Source: ANB0VdZOEXxBDjV7Hwak1KWz65g1OFEIELZuki86rTteu5QVvvvQm0T3P+0w8ADJ6Qgn1I/Ak31uSXPjoUQDnB0axXTjfwL5HTba MIME-Version: 1.0 X-Received: by 2002:a6b:c786:: with SMTP id x128-v6mr35468449iof.1.1537550642800; Fri, 21 Sep 2018 10:24:02 -0700 (PDT) Date: Fri, 21 Sep 2018 10:24:02 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e36e81057664e7c5@google.com> Subject: WARNING in clear_standby From: syzbot To: ceph-devel@vger.kernel.org, davem@davemloft.net, idryomov@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, sage@redhat.com, syzkaller-bugs@googlegroups.com, zyan@redhat.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 46c163a036b4 Add linux-next specific files for 20180921 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=17e32b9e400000 kernel config: https://syzkaller.appspot.com/x/.config?x=20ea07a946ad19d7 dashboard link: https://syzkaller.appspot.com/bug?extid=acdeb633f6211ccdf886 compiler: gcc (GCC) 8.0.1 20180413 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ffa12a400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1668561a400000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+acdeb633f6211ccdf886@syzkaller.appspotmail.com libceph: mon0 [::1]:6789 socket error on write libceph: mon0 [::1]:6789 socket error on write libceph: mon0 [::1]:6789 socket error on write libceph: mon0 [::1]:6789 socket error on write libceph: mon0 [::1]:6789 socket error on write WARNING: CPU: 1 PID: 5595 at net/ceph/messenger.c:3101 clear_standby+0x174/0x1b0 net/ceph/messenger.c:3101 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 5595 Comm: syz-executor575 Not tainted 4.19.0-rc4-next-20180921+ #77 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d3/0x2c4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969 RIP: 0010:clear_standby+0x174/0x1b0 net/ceph/messenger.c:3101 Code: 48 89 da 48 c7 c6 00 99 e3 88 48 c7 c7 e0 d3 4f 8a e8 a0 ee 02 fc e9 fe fe ff ff e8 06 e4 21 fa e9 47 ff ff ff e8 7c 6a de f9 <0f> 0b eb 85 4c 89 ef e8 10 e4 21 fa e9 ae fe ff ff 4c 89 ef e8 03 RSP: 0018:ffff8801bfb67710 EFLAGS: 00010293 RAX: ffff8801d928e5c0 RBX: ffff8801cbca2028 RCX: ffffffff879ee638 RDX: 0000000000000000 RSI: ffffffff879ee6b4 RDI: 0000000000000007 RBP: ffff8801bfb67728 R08: ffff8801d928e5c0 R09: ffffed0039794435 R10: ffff8801bfb67728 R11: ffff8801cbca21af R12: 0000000000000001 R13: ffff8801cbca2160 R14: ffff8801c878fb90 R15: ffff8801bfb67808 ceph_con_send+0x471/0x930 net/ceph/messenger.c:3136 __send_prepared_auth_request+0x155/0x1b0 net/ceph/mon_client.c:111 __open_session+0x3df/0x640 net/ceph/mon_client.c:199 ceph_monc_open_session+0x47/0x60 net/ceph/mon_client.c:448 __ceph_open_session+0xe2/0x830 net/ceph/ceph_common.c:705 ceph_real_mount fs/ceph/super.c:900 [inline] ceph_mount+0x1410/0x1ea0 fs/ceph/super.c:1085 legacy_get_tree+0x131/0x460 fs/fs_context.c:718 vfs_get_tree+0x1cb/0x5c0 fs/super.c:1795 do_new_mount fs/namespace.c:2648 [inline] do_mount+0x70c/0x1d90 fs/namespace.c:2974 ksys_mount+0x12d/0x140 fs/namespace.c:3190 __do_sys_mount fs/namespace.c:3204 [inline] __se_sys_mount fs/namespace.c:3201 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3201 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x440d39 Code: e8 cc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 bb 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffdf06babe8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000440d39 RDX: 00000000200001c0 RSI: 0000000020000180 RDI: 0000000020000240 RBP: 0000000000000000 R08: 0000000000000000 R09: 00000009004002c8 R10: 0000000000000000 R11: 0000000000000286 R12: 000000000000956a R13: 0000000000401d10 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches