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 EAC12C3F2D1 for ; Sun, 1 Mar 2020 11:20:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CC1E520828 for ; Sun, 1 Mar 2020 11:20:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726194AbgCALUN (ORCPT ); Sun, 1 Mar 2020 06:20:13 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:43282 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725827AbgCALUN (ORCPT ); Sun, 1 Mar 2020 06:20:13 -0500 Received: by mail-il1-f198.google.com with SMTP id o13so8242021ilf.10 for ; Sun, 01 Mar 2020 03:20:13 -0800 (PST) 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=65OnynFSjOmtQMIac/FTTTX4yDBFQ88yOpqC92JdH08=; b=DmeHTlo+90WnKq2aCKJ2lIk/UggGxnRcTXrCT579Txt2vwK+QV7heVV2wOrey1P6HM eIVwgSj+TNzkgU6iKN3W6QxpBFmsBhecRJ5IrzOwhrJeRc1MLeKcwksxSlKFV+aS3tH9 FoZjwLSsJTHKe+Vb3/oLZ3a8i21RRXvk8Mdi2O9T9mffmYv108Dp4WVlQuhJsZMGYPAD NxGPIulzwOZM2Xedz2CpCcXOqUF9sBAcgZci0Cu/9LUq3k014nBMZbLgOpL5h5AaN7nt BPoKXIcCQ7j65OMNYT1D0rjk8bWFAAfLvgXjN9noDdYN6psfgvklhaa9+sxsaJgkwPJG YBJw== X-Gm-Message-State: APjAAAVrEMGVzTwp0SR1gWuL0k1hsnlUl1ILUbjyjCUqYX2b/QHn0ABC xyoTi1UOhvNHEjmLAumF+PFbxwa9plsLohjzZ2X7wW6BAzVX X-Google-Smtp-Source: APXvYqx5KNVvRS8b8Ll7jiWLv2ac4h2LHyaVkAkz2O2IQ4oAfBF0eM08g0Yu/3aKiKIQYUssku0mayJ0HC0zgsDesymTX0PKxFaX MIME-Version: 1.0 X-Received: by 2002:a6b:ea0e:: with SMTP id m14mr9307164ioc.135.1583061612643; Sun, 01 Mar 2020 03:20:12 -0800 (PST) Date: Sun, 01 Mar 2020 03:20:12 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000144d79059fc9415d@google.com> Subject: WARNING in srp_remove_one From: syzbot To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org, 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: f8788d86 Linux 5.6-rc3 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11c1ad29e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=9833e26bab355358 dashboard link: https://syzkaller.appspot.com/bug?extid=687bc62a84a6a2a3555a 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+687bc62a84a6a2a3555a@syzkaller.appspotmail.com ------------[ cut here ]------------ sysfs group 'power' not found for kobject 'srp-syz0-1' WARNING: CPU: 1 PID: 9946 at fs/sysfs/group.c:278 sysfs_remove_group fs/sysfs/group.c:278 [inline] WARNING: CPU: 1 PID: 9946 at fs/sysfs/group.c:278 sysfs_remove_group+0x15b/0x1b0 fs/sysfs/group.c:269 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9946 Comm: kworker/u4:6 Not tainted 5.6.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound ib_unregister_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:sysfs_remove_group fs/sysfs/group.c:278 [inline] RIP: 0010:sysfs_remove_group+0x15b/0x1b0 fs/sysfs/group.c:269 Code: 48 89 d9 49 8b 55 00 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 20 9f 59 88 e8 b4 a9 5b ff <0f> 0b eb 92 e8 bc fd c9 ff e9 d0 fe ff ff 48 89 df e8 af fd c9 ff RSP: 0018:ffffc90007d9fa98 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffffff88b136a0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815eae46 RDI: fffff52000fb3f45 RBP: ffffc90007d9fac0 R08: ffff88809bbaa340 R09: ffffed1015d26659 R10: ffffed1015d26658 R11: ffff8880ae9332c7 R12: 0000000000000000 R13: ffff88809b4c6010 R14: ffffffff88b13c40 R15: ffffffff8a5fef80 dpm_sysfs_remove+0x9f/0xb0 drivers/base/power/sysfs.c:741 device_del+0x197/0xda0 drivers/base/core.c:2641 device_unregister+0x16/0x40 drivers/base/core.c:2696 srp_remove_one+0xad/0x250 drivers/infiniband/ulp/srp/ib_srp.c:4232 remove_client_context+0xc7/0x120 drivers/infiniband/core/device.c:724 disable_device+0x14c/0x230 drivers/infiniband/core/device.c:1268 __ib_unregister_device+0x9c/0x190 drivers/infiniband/core/device.c:1435 ib_unregister_work+0x19/0x30 drivers/infiniband/core/device.c:1545 process_one_work+0xa05/0x17a0 kernel/workqueue.c:2264 worker_thread+0x98/0xe40 kernel/workqueue.c:2410 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug is generated by a bot. 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