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=-0.7 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 3250EC43381 for ; Mon, 1 Apr 2019 17:43:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0CAD620830 for ; Mon, 1 Apr 2019 17:43:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388217AbfDARnJ (ORCPT ); Mon, 1 Apr 2019 13:43:09 -0400 Received: from mail-it1-f200.google.com ([209.85.166.200]:38832 "EHLO mail-it1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387648AbfDARgG (ORCPT ); Mon, 1 Apr 2019 13:36:06 -0400 Received: by mail-it1-f200.google.com with SMTP id 79so218706itz.3 for ; Mon, 01 Apr 2019 10:36:05 -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=BD99+p9JTxs+7dg6aeQJ42Oad+28HFaix5kytirea5c=; b=LvUqRVZ8vyDyafCwzKnCEb1fiuzxWUhP/x5yySBxP4Fawbhn2oF/I64fKVWb70EMaA hirOUgCz3qoTKB5k23gDGdIM8v5IZi3Bxe+iZC2Kq/3N85Ays9LBsFiBei9BMSda9HWQ ie7u2EL7YhXJ3g9Rp/HiW5c95WoHepnT9w2XAYOo6gE9yqQ+gcB786VMlJVAPjCZg5cM ats60w8bZGQR9wIrx4pkcreL2Bc5QaI5OsmKal9A9RgbfQcyoiu6QW53oqpzmv8Xnwoq eDN2OKqpVo5Nhi8dZM+0hTdhI6PQjRAqX/2VJNoOiImmvySR5skbCmF6x5Ob7vtei8A5 aqzA== X-Gm-Message-State: APjAAAUsCWgxMAFar1b0SzzmwaN3ANytc0rtPBBMtvQ5NEqj21kFWdNj sCVO00kMUrseiBx/zz7ruHllnH2Y0C6v5wP0G9jvRKsF4sTQ X-Google-Smtp-Source: APXvYqyRMeEB5u45X5WEr4JHFQmuRnaMqCPTKm9E86TvTtQBNHBzzFAwsMRXLimzxavcQ602wgqxtm4vprTSnNeVKGiR0cOt8ARp MIME-Version: 1.0 X-Received: by 2002:a24:612:: with SMTP id 18mr6984223itv.9.1554140165606; Mon, 01 Apr 2019 10:36:05 -0700 (PDT) Date: Mon, 01 Apr 2019 10:36:05 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008096f305857b74d1@google.com> Subject: WARNING in cma_exit_net From: syzbot To: danielj@mellanox.com, danitg@mellanox.com, dledford@redhat.com, jgg@ziepe.ca, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, parav@mellanox.com, swise@opengridcomputing.com, syzkaller-bugs@googlegroups.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: e3ecb83e Add linux-next specific files for 20190401 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=13bc36cd200000 kernel config: https://syzkaller.appspot.com/x/.config?x=db6c9f2bfeb91a99 dashboard link: https://syzkaller.appspot.com/bug?extid=2e3e485d5697ea610460 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+2e3e485d5697ea610460@syzkaller.appspotmail.com WARNING: CPU: 1 PID: 7 at drivers/infiniband/core/cma.c:4674 cma_exit_net+0x327/0x390 drivers/infiniband/core/cma.c:4674 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.1.0-rc2-next-20190401 #15 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:cma_exit_net+0x327/0x390 drivers/infiniband/core/cma.c:4674 Code: 00 48 c7 c7 c0 4e ea 87 c6 05 89 86 4a 04 01 e8 ba cc 46 fc e9 c8 fd ff ff e8 25 6c 5f fc 0f 0b e9 d7 fe ff ff e8 19 6c 5f fc <0f> 0b e8 12 6c 5f fc 48 8d 65 e8 5b 41 5c 41 5d 5d c3 e8 02 6c 5f RSP: 0000:ffff8880aa267bf0 EFLAGS: 00010293 RAX: ffff8880aa2581c0 RBX: ffff8880a538d500 RCX: 1ffff1101544b146 RDX: 0000000000000000 RSI: ffffffff85111537 RDI: ffff8880a538d618 RBP: ffff8880aa267c08 R08: ffff8880aa2581c0 R09: 0000000000000004 R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 0000000000000001 R13: ffff8880a90e84c0 R14: ffffffff891e29f8 R15: dffffc0000000000 ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:552 process_one_work+0x98e/0x1790 kernel/workqueue.c:2270 worker_thread+0x98/0xe40 kernel/workqueue.c:2416 kthread+0x357/0x430 kernel/kthread.c:254 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 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#status for how to communicate with syzbot.