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 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 A6F89ECDE44 for ; Sat, 20 Oct 2018 16:57:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 643C521582 for ; Sat, 20 Oct 2018 16:57:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 643C521582 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 S1727698AbeJUBIJ (ORCPT ); Sat, 20 Oct 2018 21:08:09 -0400 Received: from mail-it1-f199.google.com ([209.85.166.199]:43347 "EHLO mail-it1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727590AbeJUBII (ORCPT ); Sat, 20 Oct 2018 21:08:08 -0400 Received: by mail-it1-f199.google.com with SMTP id w137-v6so7439609itc.8 for ; Sat, 20 Oct 2018 09:57:03 -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=VVPYag9curU1k6n5E5X9HDf2jmfos7gGBlMl4ujz+0U=; b=e+g+SBtCDfE8mpt1Eorl1cR8iyHYWjWcTDbpIeIPjpSo2dF8acRWkZrlQcy9YAe3CG KKbAAPZMx9+hDxigFxsp60G2We0MfwJCLKBeSgwuLzG7k2T4JkQ+fdx1gkOkxpNunEOk DqXfUPQqCWVWwduP/Ne1dnPKUjIhUjdQLiJMLIFrKcvXeTexZxWYfIDcYV0mOMBvDUCh 4OqaOu0inlRFfcEn+B41hTUpJBmNC/A+6MGXET0kywXr0nTsHE5JNs7BoAzhdE7H1bce HrzAmt1EBes6qFnjMilU75O4ECFZRZaVNayto86MxM4LxEIif6Df+kFTaVMnlOKIS+lv de4A== X-Gm-Message-State: ABuFfoiliBEOpu0308ZRCnNlbkENICGnTwRpu57qU8U31U3GOqCg8UaY cujwqz3DQwoC2ppaSP4Q1E5sepfSot2KSJUKqJuxCzH+w8uu X-Google-Smtp-Source: ACcGV61l3g7sJiqa4Hhj2smTnGysDeIG20wem+E8HdvnsFMPJ8OFBSbrFtw1/ipUJFFGFHAinJ1qTj1X07nSYp2hvS7TNC9o6+3h MIME-Version: 1.0 X-Received: by 2002:a24:5495:: with SMTP id t143-v6mr7008991ita.34.1540054623166; Sat, 20 Oct 2018 09:57:03 -0700 (PDT) Date: Sat, 20 Oct 2018 09:57:03 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bfd4270578abe88b@google.com> Subject: possible deadlock in flush_workqueue (2) From: syzbot To: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu 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: 91b15613ce7f Merge git://git.kernel.org/pub/scm/linux/kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10114109400000 kernel config: https://syzkaller.appspot.com/x/.config?x=b3f55cb3dfcc6c33 dashboard link: https://syzkaller.appspot.com/bug?extid=a50c7541a4a55cd49b02 compiler: gcc (GCC) 8.0.1 20180413 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=159c1de9400000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+a50c7541a4a55cd49b02@syzkaller.appspotmail.com 8021q: adding VLAN 0 to HW filter on device team0 8021q: adding VLAN 0 to HW filter on device team0 8021q: adding VLAN 0 to HW filter on device team0 ====================================================== WARNING: possible circular locking dependency detected 4.19.0-rc8+ #291 Not tainted ------------------------------------------------------ syz-executor1/6832 is trying to acquire lock: 000000007d4a82f2 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: flush_workqueue+0x2db/0x1e10 kernel/workqueue.c:2652 but task is already holding lock: 00000000e2da6d71 (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_trylock include/linux/fs.h:758 [inline] 00000000e2da6d71 (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_file_write_iter+0x2a1/0x1420 fs/ext4/file.c:232 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env -> #2 (&sb->s_type->i_mutex_key#10){+.+.}: down_write+0x8a/0x130 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:738 [inline] __generic_file_fsync+0xb5/0x200 fs/libfs.c:981 ext4_sync_file+0xa4f/0x1510 fs/ext4/fsync.c:120 vfs_fsync_range+0x140/0x220 fs/sync.c:197 kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' generic_write_sync include/linux/fs.h:2732 [inline] dio_complete+0x75c/0x9e0 fs/direct-io.c:329 dio_aio_complete_work+0x20/0x30 fs/direct-io.c:341 process_one_work+0xc90/0x1b90 kernel/workqueue.c:2153 kobject: 'loop0' (0000000088c9da71): kobject_uevent_env worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 -> #1 ((work_completion)(&dio->complete_work)){+.+.}: process_one_work+0xc0a/0x1b90 kernel/workqueue.c:2129 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 -> #0 ((wq_completion)"dio/%s"sb->s_id){+.+.}: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 flush_workqueue+0x30a/0x1e10 kernel/workqueue.c:2655 drain_workqueue+0x2a9/0x640 kernel/workqueue.c:2820 destroy_workqueue+0xc6/0x9c0 kernel/workqueue.c:4155 sb_init_dio_done_wq+0x74/0x90 fs/direct-io.c:634 do_blockdev_direct_IO+0x12ea/0x9d70 fs/direct-io.c:1283 __blockdev_direct_IO+0x9d/0xc6 fs/direct-io.c:1417 kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env ext4_direct_IO_write fs/ext4/inode.c:3743 [inline] ext4_direct_IO+0xae8/0x2230 fs/ext4/inode.c:3870 generic_file_direct_write+0x275/0x4b0 mm/filemap.c:3042 __generic_file_write_iter+0x2ff/0x630 mm/filemap.c:3221 ext4_file_write_iter+0x390/0x1420 fs/ext4/file.c:266 call_write_iter include/linux/fs.h:1808 [inline] aio_write+0x3b1/0x610 fs/aio.c:1561 io_submit_one+0xaa1/0xf80 fs/aio.c:1835 kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' __do_sys_io_submit fs/aio.c:1916 [inline] __se_sys_io_submit fs/aio.c:1887 [inline] __x64_sys_io_submit+0x1b7/0x580 fs/aio.c:1887 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: (wq_completion)"dio/%s"sb->s_id --> (work_completion)(&dio->complete_work) --> &sb->s_type->i_mutex_key#10 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#10); lock((work_completion)(&dio->complete_work)); lock(&sb->s_type->i_mutex_key#10); lock((wq_completion)"dio/%s"sb->s_id); *** DEADLOCK *** 1 lock held by syz-executor1/6832: #0: 00000000e2da6d71 (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_trylock include/linux/fs.h:758 [inline] #0: 00000000e2da6d71 (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_file_write_iter+0x2a1/0x1420 fs/ext4/file.c:232 stack backtrace: CPU: 1 PID: 6832 Comm: syz-executor1 Not tainted 4.19.0-rc8+ #291 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+0x1c4/0x2b4 lib/dump_stack.c:113 print_circular_bug.isra.33.cold.54+0x1bd/0x27d kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1861 [inline] check_prevs_add kernel/locking/lockdep.c:1974 [inline] validate_chain kernel/locking/lockdep.c:2415 [inline] __lock_acquire+0x33e4/0x4ec0 kernel/locking/lockdep.c:3411 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 flush_workqueue+0x30a/0x1e10 kernel/workqueue.c:2655 drain_workqueue+0x2a9/0x640 kernel/workqueue.c:2820 destroy_workqueue+0xc6/0x9c0 kernel/workqueue.c:4155 sb_init_dio_done_wq+0x74/0x90 fs/direct-io.c:634 do_blockdev_direct_IO+0x12ea/0x9d70 fs/direct-io.c:1283 __blockdev_direct_IO+0x9d/0xc6 fs/direct-io.c:1417 ext4_direct_IO_write fs/ext4/inode.c:3743 [inline] ext4_direct_IO+0xae8/0x2230 fs/ext4/inode.c:3870 generic_file_direct_write+0x275/0x4b0 mm/filemap.c:3042 __generic_file_write_iter+0x2ff/0x630 mm/filemap.c:3221 ext4_file_write_iter+0x390/0x1420 fs/ext4/file.c:266 call_write_iter include/linux/fs.h:1808 [inline] aio_write+0x3b1/0x610 fs/aio.c:1561 io_submit_one+0xaa1/0xf80 fs/aio.c:1835 __do_sys_io_submit fs/aio.c:1916 [inline] __se_sys_io_submit fs/aio.c:1887 [inline] __x64_sys_io_submit+0x1b7/0x580 fs/aio.c:1887 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7d19a51c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000020000540 RSI: 0000000000000008 RDI: 00007f7d19a31000 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7d19a526d4 R13: 00000000004be72d R14: 00000000004ce380 R15: 00000000ffffffff kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' syz-executor3 (6993) used greatest stack depth: 14648 bytes left kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! kobject: 'loop3' (00000000037f642c): kobject_uevent_env File: /root/syzkaller-testdir701396558/syzkaller.CThVT5/11/bus PID: 14 Comm: kworker/0:1 kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! File: /root/syzkaller-testdir446226321/syzkaller.6kf3D2/23/bus PID: 14 Comm: kworker/0:1 kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' syz-executor5 (7484) used greatest stack depth: 12280 bytes left kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env File: /root/syzkaller-testdir749472085/syzkaller.cOi3p9/41/bus PID: 5692 Comm: kworker/0:4 kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! kobject: 'loop3' (00000000037f642c): kobject_uevent_env File: /root/syzkaller-testdir625100220/syzkaller.kNEfa4/64/bus PID: 7011 Comm: kworker/0:5 kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000373a5938): kobject_uevent_env kobject: 'loop5' (00000000373a5938): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000d7ab4dab): kobject_uevent_env kobject: 'loop4' (00000000d7ab4dab): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000020356063): kobject_uevent_env kobject: 'loop1' (0000000020356063): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000a99f8b0a): kobject_uevent_env kobject: 'loop2' (00000000a99f8b0a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (0000000088c9da71): kobject_uevent_env kobject: 'loop0' (0000000088c9da71): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000037f642c): kobject_uevent_env kobject: 'loop3' (00000000037f642c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000373a5938): kobject_uevent_env --- 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