Bluetooth: hci6: command 0x0406 tx timeout IPVS: ftp: loaded support on port[0] = 21 INFO: task kworker/u4:11:17446 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u4:11 D26280 17446 2 0x80000000 Workqueue: writeback wb_workfn (flush-7:4) Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 chnl_net:caif_netlink_parms(): no params data found f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 f2fs_write_inode+0x500/0x600 fs/f2fs/inode.c:630 write_inode fs/fs-writeback.c:1244 [inline] __writeback_single_inode+0x733/0x11d0 fs/fs-writeback.c:1442 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1716 wb_writeback+0x841/0xcc0 fs/fs-writeback.c:1822 bridge0: port 1(bridge_slave_0) entered blocking state wb_check_old_data_flush fs/fs-writeback.c:1924 [inline] wb_do_writeback fs/fs-writeback.c:1977 [inline] wb_workfn+0x8ba/0x1250 fs/fs-writeback.c:2006 bridge0: port 1(bridge_slave_0) entered disabled state process_one_work+0x864/0x1570 kernel/workqueue.c:2153 device bridge_slave_0 entered promiscuous mode worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_1 entered promiscuous mode kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Showing all locks held in the system: bond0: Enslaving bond_slave_0 as an active interface with an up link 1 lock held by khungtaskd/1568: #0: 00000000677e23d4 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 bond0: Enslaving bond_slave_1 as an active interface with an up link 1 lock held by in:imklog/7810: IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready team0: Port device team_slave_0 added 4 locks held by kworker/u4:11/17446: #0: 00000000129cbb42 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000009005769b ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: trylock_super+0x1d/0x100 fs/super.c:412 #3: 00000000cbc4a704 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 3 locks held by kworker/u4:12/17491: 3 locks held by syz-executor.4/24696: 2 locks held by syz-executor.5/24765: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.5/24769: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.2/24754: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.2/24764: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/24759: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/24766: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.0/24762: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.0/24767: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.4/25056: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.4/25057: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.4/26208: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.4/26213: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.0/26381: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.0/26384: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.2/26403: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.2/26411: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/26405: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/26412: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.5/26419: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.5/26422: #0: 00000000b8f21652 (&type->s_umount_key#69){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 0000000072ca8eb9 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 4 locks held by syz-executor.4/26427: IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready f2fs_msg: 5014 callbacks suppressed F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0] F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0] team0: Port device team_slave_1 added ============================================= batman_adv: batadv0: Adding interface: batadv_slave_0 F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0] batman_adv: batadv0: Adding interface: batadv_slave_1 NMI backtrace for cpu 0 batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. CPU: 0 PID: 1568 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0] ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready NMI backtrace for cpu 1 CPU: 1 PID: 26427 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:io_serial_in+0x60/0x80 drivers/tty/serial/8250/8250_port.c:455 Code: 0f b6 8d e1 00 00 00 48 8d 7d 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 d3 e3 80 3c 02 00 75 13 03 5d 38 89 da ec <5b> 0f b6 c0 5d c3 e8 c5 80 d7 fd eb c9 e8 0e 83 d7 fd eb e6 66 66 RSP: 0018:ffff8880a15ae980 EFLAGS: 00000002 RAX: dffffc0000000000 RBX: 00000000000003fd RCX: 0000000000000000 RDX: 00000000000003fd RSI: ffffffff83c0deec RDI: ffffffff8dc90258 RBP: ffffffff8dc90220 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000020 R13: fffffbfff1b9208c R14: fffffbfff1b9204d R15: 0000000000000000 FS: 0000555557229400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc8c8039108 CR3: 0000000094998000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_in drivers/tty/serial/8250/8250.h:111 [inline] wait_for_xmitr+0x9a/0x230 drivers/tty/serial/8250/8250_port.c:2049 serial8250_console_putchar+0x1b/0x50 drivers/tty/serial/8250/8250_port.c:3242 uart_console_write+0x59/0x100 drivers/tty/serial/serial_core.c:1888 serial8250_console_write+0x6aa/0xb70 drivers/tty/serial/8250/8250_port.c:3308 call_console_drivers kernel/printk/printk.c:1764 [inline] console_unlock+0xbb6/0x1110 kernel/printk/printk.c:2460 vprintk_emit+0x2d1/0x740 kernel/printk/printk.c:1965 vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405 printk+0xba/0xed kernel/printk/printk.c:2040 addrconf_notify+0xdce/0x21f0 net/ipv6/addrconf.c:3493 notifier_call_chain+0xc0/0x230 kernel/notifier.c:93 call_netdevice_notifiers net/core/dev.c:1762 [inline] __dev_notify_flags+0x110/0x2b0 net/core/dev.c:7717 dev_change_flags+0xf0/0x140 net/core/dev.c:7753 do_setlink+0x14f1/0x3540 net/core/rtnetlink.c:2449 rtnl_newlink+0xda9/0x15c0 net/core/rtnetlink.c:3077 rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4782 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 __sys_sendto+0x21a/0x320 net/socket.c:1899 __do_sys_sendto net/socket.c:1911 [inline] __se_sys_sendto net/socket.c:1907 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1907 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f62b4df24fc Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007ffc847e6da0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f62b5e99320 RCX: 00007f62b4df24fc RDX: 0000000000000020 RSI: 00007f62b5e99370 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffc847e6df4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007f62b5e99370 R14: 0000000000000003 R15: 0000000000000000 F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready F2FS-fs (loop4): inconsistent node block, nid:6, node_footer[nid:0,ino:0,ofs:0,cpver:0,blkaddr:0]