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_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 3D488C54FCB for ; Sun, 26 Apr 2020 13:43:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2125F2071C for ; Sun, 26 Apr 2020 13:43:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726165AbgDZNnS (ORCPT ); Sun, 26 Apr 2020 09:43:18 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:53208 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726149AbgDZNnP (ORCPT ); Sun, 26 Apr 2020 09:43:15 -0400 Received: by mail-il1-f197.google.com with SMTP id l9so8226956ili.19 for ; Sun, 26 Apr 2020 06:43:14 -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=rlJAfwbPqtPWQJVZIPkomN7KJEtdzrl3Ui0y/x3Z8hs=; b=KI4pz7ISn0D9f4RwP5wegczAcY30Uhbr8UHy+0LNrb3h0O64/3O9waNfkjOqyKQrNb cnkpMJVf3O6NPfhH+sz6QhK3WJv6VcKMwtNE/59SCN8UlQiPiL44Qrj2tRns4QeIX3EZ tbIjoxHunEFOiYRo6LkXfcDT85W+kFHJmkYzzYAKF0t46jj0e3ARLhclGNbMr3gD91TW uQW9UFXoUpiWK12iNr6az7pFN5LlyDWC7BWQjfhBaSEQPWO1xMNkcCn6MIYq2yNtDhWp 9FJCN7sh08JRXbgFLZBgTyAzMFVPm7jfqBKSNdFNvYwOuME7yDl36NI0bHTaLRRHWTw7 aLRA== X-Gm-Message-State: AGi0PuZzfflY3YKT3MPiigNkX2aLErDLTnFKU3RChRH+8gS/0vccroVS OtsKLHDSzrFv2e7yoFKHHmJ71MSt0QWC92AOwSPB31cdbPsA X-Google-Smtp-Source: APiQypKxs5VGnvM1qXq+lYJKi9Um6WY+7O0zommb3ly8Y5J38otFgmbS3FSL4vxdihxPch6+sK5nNtt+xHbSN3izMbjCgJLBOJWR MIME-Version: 1.0 X-Received: by 2002:a02:9642:: with SMTP id c60mr16053970jai.87.1587908593710; Sun, 26 Apr 2020 06:43:13 -0700 (PDT) Date: Sun, 26 Apr 2020 06:43:13 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000aa012505a431c7d9@google.com> Subject: WARNING in ib_unregister_device_queued From: syzbot To: dledford@redhat.com, jgg@ziepe.ca, kamalheib1@gmail.com, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, parav@mellanox.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" 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: b9663b7c net: stmmac: Enable SERDES power up/down sequence git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=166bf717e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=5d351a1019ed81a2 dashboard link: https://syzkaller.appspot.com/bug?extid=4088ed905e4ae2b0e13b 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+4088ed905e4ae2b0e13b@syzkaller.appspotmail.com rdma_rxe: ignoring netdev event = 10 for netdevsim0 infiniband yz2: set down ------------[ cut here ]------------ WARNING: CPU: 0 PID: 22753 at drivers/infiniband/core/device.c:1565 ib_unregister_device_queued+0x122/0x160 drivers/infiniband/core/device.c:1565 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 22753 Comm: syz-executor.5 Not tainted 5.7.0-rc1-syzkaller #0 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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:ib_unregister_device_queued+0x122/0x160 drivers/infiniband/core/device.c:1565 Code: fb e8 72 e2 d4 fb 48 89 ef e8 2a c3 c1 fe 48 83 c4 08 5b 5d e9 5f e2 d4 fb e8 5a e2 d4 fb 0f 0b e9 46 ff ff ff e8 4e e2 d4 fb <0f> 0b e9 6f ff ff ff 48 89 ef e8 2f a9 12 fc e9 16 ff ff ff 48 c7 RSP: 0018:ffffc900072ef290 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880a6a24000 RCX: ffffc90013201000 RDX: 0000000000040000 RSI: ffffffff859e51b2 RDI: ffff8880a6a24310 RBP: 0000000000000019 R08: ffff88808d21c280 R09: ffffed1014d449bb R10: ffff8880a6a24dd3 R11: ffffed1014d449ba R12: 0000000000000006 R13: ffff88805988c000 R14: 0000000000000000 R15: ffffffff8a44f8c0 rxe_notify+0x77/0xd0 drivers/infiniband/sw/rxe/rxe_net.c:605 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] rollback_registered_many+0x75c/0xe70 net/core/dev.c:8828 rollback_registered+0xf2/0x1c0 net/core/dev.c:8873 unregister_netdevice_queue net/core/dev.c:9969 [inline] unregister_netdevice_queue+0x1d7/0x2b0 net/core/dev.c:9962 unregister_netdevice include/linux/netdevice.h:2725 [inline] nsim_destroy+0x35/0x60 drivers/net/netdevsim/netdev.c:330 __nsim_dev_port_del+0x144/0x1e0 drivers/net/netdevsim/dev.c:934 nsim_dev_port_del_all+0x86/0xe0 drivers/net/netdevsim/dev.c:947 nsim_dev_reload_destroy+0x77/0x110 drivers/net/netdevsim/dev.c:1123 nsim_dev_reload_down+0x6e/0xd0 drivers/net/netdevsim/dev.c:703 devlink_reload+0xbd/0x3b0 net/core/devlink.c:2797 devlink_nl_cmd_reload+0x2f7/0x7c0 net/core/devlink.c:2832 genl_family_rcv_msg_doit net/netlink/genetlink.c:673 [inline] genl_family_rcv_msg net/netlink/genetlink.c:718 [inline] genl_rcv_msg+0x627/0xdf0 net/netlink/genetlink.c:735 netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469 genl_rcv+0x24/0x40 net/netlink/genetlink.c:746 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6bf/0x7e0 net/socket.c:2362 ___sys_sendmsg+0x100/0x170 net/socket.c:2416 __sys_sendmsg+0xec/0x1b0 net/socket.c:2449 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c829 Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f6fae1cac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004fcc00 RCX: 000000000045c829 RDX: 0000000000000000 RSI: 0000000020000800 RDI: 0000000000000006 RBP: 000000000078c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000905 R14: 00000000004cbaab R15: 00007f6fae1cb6d4 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.