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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7FE6DC433EF for ; Sun, 20 Feb 2022 18:27:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244502AbiBTS1s (ORCPT ); Sun, 20 Feb 2022 13:27:48 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:47982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230370AbiBTS1q (ORCPT ); Sun, 20 Feb 2022 13:27:46 -0500 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE9C225C7C for ; Sun, 20 Feb 2022 10:27:23 -0800 (PST) Received: by mail-il1-f198.google.com with SMTP id o8-20020a056e0214c800b002bc2f9cffffso6421826ilk.8 for ; Sun, 20 Feb 2022 10:27:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=pSYYjv4i1WUh1iDAp2nfTxJwhP3uvRN5jOqDLwvohJk=; b=fsAM4wodCS1WBIbxdNziVP84LpligIii3A68pWwgMF27SHWcvQqHsKtT/KI/bW2a/f NoMyCEylkU1Zs5Swx5iMTjpO4T8uMs83nX0sZk4GgIO74JmzjIze5pa1YQNYFwpfaLa9 aM8wmrOfwHfuh8PvfU14tYOUGOFd3Xxe8C7aNO+vM0z6m2OHQ2MrquCoKVrpkj7JyRLw vkJBBOi5ReeNeCt2jY+k0muOYx7izCV/de9FIXSa18twRmTC2cIAi5X3DAbp+AQoXx/n kCPguDDuWncf7TTJKjmSEwRcOw/jnMTVG8g8A1ntJsMPaKS4uTLa8DH3HVmHLbw7zT8c i5Ow== X-Gm-Message-State: AOAM530sebHVcN0DwluzeWJzrnuVCAUn2VOZeeSZjW9FAaCUW1h2UCKt dUhvidOaUZ69sSz7I4h4QBpu5E28Wc1rWAVy/TXDy4p1L/Bu X-Google-Smtp-Source: ABdhPJxZQVGnvRHrpY23wkb0dEerpIGEGo9vmaKQQNULR0KelCo7/EZdOOvHDzW1z1BN+EUAuPT8rryPd7I3k//WZtBeDS28/LCJ MIME-Version: 1.0 X-Received: by 2002:a02:69c2:0:b0:311:b65e:388b with SMTP id e185-20020a0269c2000000b00311b65e388bmr12501547jac.123.1645381643183; Sun, 20 Feb 2022 10:27:23 -0800 (PST) Date: Sun, 20 Feb 2022 10:27:23 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005ca92705d877448c@google.com> Subject: [syzbot] WARNING in kthread_bind_mask From: syzbot To: clm@fb.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: c5d9ae265b10 Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11daf74a700000 kernel config: https://syzkaller.appspot.com/x/.config?x=da674567f7b6043d dashboard link: https://syzkaller.appspot.com/bug?extid=087b7effddeec0697c66 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 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+087b7effddeec0697c66@syzkaller.appspotmail.com BTRFS info (device loop3): disk space caching is enabled BTRFS info (device loop3): has skinny extents ------------[ cut here ]------------ WARNING: CPU: 0 PID: 10327 at kernel/kthread.c:525 __kthread_bind_mask kernel/kthread.c:525 [inline] WARNING: CPU: 0 PID: 10327 at kernel/kthread.c:525 kthread_bind_mask+0x35/0xc0 kernel/kthread.c:543 Modules linked in: CPU: 1 PID: 10327 Comm: syz-executor.3 Not tainted 5.17.0-rc4-syzkaller-00051-gc5d9ae265b10 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__kthread_bind_mask kernel/kthread.c:525 [inline] RIP: 0010:kthread_bind_mask+0x35/0xc0 kernel/kthread.c:543 Code: fb e8 df 36 2a 00 be 02 00 00 00 48 89 df e8 62 cb 03 00 31 ff 48 89 c5 48 89 c6 e8 d5 38 2a 00 48 85 ed 75 12 e8 bb 36 2a 00 <0f> 0b 5b 5d 41 5c 41 5d e9 ae 36 2a 00 e8 a9 36 2a 00 4c 8d ab 80 RSP: 0018:ffffc90002ca7658 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88802e38e200 RCX: ffffc90004682000 RDX: 0000000000040000 RSI: ffffffff814ddc65 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8ffc6ab7 R10: ffffffff814ddc5b R11: 0000000000000000 R12: ffffffff8d93cf18 R13: ffff88807b643940 R14: ffff88807a0ea020 R15: ffff88807a0ea000 FS: 00007f0f90de1700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2b555fb920 CR3: 0000000021192000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: init_rescuer kernel/workqueue.c:4291 [inline] init_rescuer+0x141/0x1d0 kernel/workqueue.c:4270 alloc_workqueue+0xbf7/0xf00 kernel/workqueue.c:4358 __btrfs_alloc_workqueue+0x3e9/0x660 fs/btrfs/async-thread.c:112 btrfs_alloc_workqueue+0x7b/0x460 fs/btrfs/async-thread.c:140 btrfs_init_workqueues fs/btrfs/disk-io.c:2401 [inline] open_ctree+0x196e/0x4817 fs/btrfs/disk-io.c:3574 btrfs_fill_super fs/btrfs/super.c:1358 [inline] btrfs_mount_root.cold+0x15/0x162 fs/btrfs/super.c:1724 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 fc_mount fs/namespace.c:1000 [inline] vfs_kern_mount.part.0+0xd3/0x170 fs/namespace.c:1030 vfs_kern_mount+0x3c/0x60 fs/namespace.c:1017 btrfs_mount+0x234/0xa60 fs/btrfs/super.c:1784 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:2994 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3324 do_mount fs/namespace.c:3337 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount fs/namespace.c:3522 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3522 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f0f9246d58a Code: 48 c7 c2 b8 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0f90de0f88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f0f9246d58a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f0f90de0fe0 RBP: 00007f0f90de1020 R08: 00007f0f90de1020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f0f90de0fe0 R15: 0000000020016b00 --- 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.