team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves INFO: task syz-executor1:16788 blocked for more than 140 seconds. Not tainted 4.20.0+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D25784 16788 7921 0x00000004 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e90 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 blk_mq_freeze_queue_wait+0x1cf/0x480 block/blk-mq.c:158 blk_freeze_queue block/blk-mq.c:185 [inline] blk_mq_freeze_queue+0x1e/0x30 block/blk-mq.c:194 loop_set_status+0x282/0x1100 drivers/block/loop.c:1195 loop_set_status64+0xc2/0x120 drivers/block/loop.c:1389 lo_ioctl+0x518/0x2190 drivers/block/loop.c:1515 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0x10e0/0x2120 block/ioctl.c:605 block_ioctl+0xee/0x130 fs/block_dev.c:1909 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x107b/0x17d0 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457ec9 Code: Bad RIP value. RSP: 002b:00007fec895d3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 RDX: 0000000020000380 RSI: 0000000000004c04 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fec895d46d4 R13: 00000000004c1290 R14: 00000000004d2c80 R15: 00000000ffffffff INFO: task syz-executor1:16793 blocked for more than 140 seconds. Not tainted 4.20.0+ #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D24664 16793 7921 0x00000006 Call Trace: context_switch kernel/sched/core.c:2831 [inline] __schedule+0x897/0x1e90 kernel/sched/core.c:3472 schedule+0xfe/0x350 kernel/sched/core.c:3516 blk_queue_enter+0x7c4/0x1200 block/blk-core.c:435 generic_make_request+0x612/0x17f0 block/blk-core.c:1022 submit_bio+0xba/0x480 block/blk-core.c:1195 submit_bh_wbc+0x5f7/0x7f0 fs/buffer.c:3087 submit_bh fs/buffer.c:3093 [inline] ll_rw_block+0x1ef/0x220 fs/buffer.c:3143 __block_write_begin_int+0xd15/0x2010 fs/buffer.c:1996 __block_write_begin fs/buffer.c:2016 [inline] block_write_begin+0xd2/0x3a0 fs/buffer.c:2075 blkdev_write_begin+0x3c/0x50 fs/block_dev.c:611 generic_perform_write+0x2a0/0x6b0 mm/filemap.c:3208 __generic_file_write_iter+0x25e/0x630 mm/filemap.c:3333 blkdev_write_iter+0x23a/0x440 fs/block_dev.c:1942 call_write_iter include/linux/fs.h:1862 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x764/0xb40 fs/read_write.c:487 vfs_write+0x20c/0x580 fs/read_write.c:549 ksys_pwrite64+0x183/0x1c0 fs/read_write.c:652 __do_sys_pwrite64 fs/read_write.c:662 [inline] __se_sys_pwrite64 fs/read_write.c:659 [inline] __x64_sys_pwrite64+0x97/0xf0 fs/read_write.c:659 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457ec9 Code: Bad RIP value. RSP: 002b:00007fec895b2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9 RDX: 0000000000000001 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fec895b36d4 R13: 00000000004c47f1 R14: 00000000004d7bd0 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1041: #0: 0000000042a54978 (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389 1 lock held by udevd/3855: 1 lock held by rsyslogd/7770: #0: 00000000660b68a5 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795 2 locks held by getty/7883: #0: 000000009dbe2b89 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000f6ed4521 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7884: #0: 0000000078390699 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000003ff1883 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7885: #0: 00000000382bb7b0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000cced28a4 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7886: #0: 000000008ca63ec0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000005d3530ef (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7887: #0: 0000000031679aa2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000b41b3de8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7888: #0: 000000008a6f07d3 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000071eac2dd (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7889: #0: 000000003fbba05e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000b7032060 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by syz-executor4/13959: #0: 0000000055c50643 (&bdev->bd_mutex){+.+.}, at: __blkdev_put+0xbb/0x830 fs/block_dev.c:1809 #1: 0000000023275e25 (loop_ctl_mutex){+.+.}, at: lo_release+0x1f/0x200 drivers/block/loop.c:1711 1 lock held by syz-executor1/16788: #0: 0000000023275e25 (loop_ctl_mutex){+.+.}, at: loop_set_status+0x93/0x1100 drivers/block/loop.c:1176 2 locks held by syz-executor4/16825: #0: 00000000a4b1a1f6 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x1400 fs/block_dev.c:1492 #1: 0000000023275e25 (loop_ctl_mutex){+.+.}, at: lo_open+0x1d/0xd0 drivers/block/loop.c:1692 2 locks held by syz-executor5/16830: #0: 0000000091169c12 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x1400 fs/block_dev.c:1492 #1: 0000000023275e25 (loop_ctl_mutex){+.+.}, at: lo_open+0x1d/0xd0 drivers/block/loop.c:1692 2 locks held by syz-executor3/16831: #0: 00000000527b6486 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x1400 fs/block_dev.c:1492 #1: 0000000023275e25 (loop_ctl_mutex){+.+.}, at: lo_open+0x1d/0xd0 drivers/block/loop.c:1692 1 lock held by syz-executor0/16832: #0: 0000000055c50643 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19b/0x1400 fs/block_dev.c:1492 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1041 Comm: khungtaskd Not tainted 4.20.0+ #1 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+0x1db/0x2d0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline] watchdog+0xbd2/0x10b0 kernel/hung_task.c:289 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.636 msecs NMI backtrace for cpu 0 CPU: 0 PID: 3855 Comm: udevd Not tainted 4.20.0+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:191 [inline] RIP: 0010:select_idle_sibling kernel/sched/fair.c:6193 [inline] RIP: 0010:select_idle_sibling+0x155/0xda0 kernel/sched/fair.c:6164 Code: fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 f6 0a 00 00 48 8b 85 e0 fe ff ff 48 03 1c c5 60 60 55 89 <48> b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80 3c 02 00 0f RSP: 0018:ffff8880ae6072c8 EFLAGS: 00000082 RAX: 0000000000000000 RBX: ffff8880ae61f6a8 RCX: ffffed1015cc0e46 RDX: 1ffffffff12aac0c RSI: 0000000000000000 RDI: ffff8880ae72d828 RBP: ffff8880ae607428 R08: 0000000000000000 R09: ffffed1015cc5b90 R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: ffff8880a94662d8 R13: ffff8880ae607400 R14: 0000000000000001 R15: 0000000000000000 FS: 00007fa210ad07a0(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c4318b9a70 CR3: 0000000098e76000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: select_task_rq_fair+0x1dab/0x3b60 kernel/sched/fair.c:6652 select_task_rq kernel/sched/core.c:1536 [inline] try_to_wake_up+0x4ce/0x1480 kernel/sched/core.c:2041 wake_up_process+0x10/0x20 kernel/sched/core.c:2129 process_timeout+0x31/0x40 kernel/time/timer.c:1732 call_timer_fn+0x254/0x900 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers+0x6fc/0xd50 kernel/time/timer.c:1681 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694 __do_softirq+0x30b/0xb11 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1b7/0x760 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline] RIP: 0010:read_seqcount_begin include/linux/seqlock.h:164 [inline] RIP: 0010:ktime_get_ts64+0x1bb/0x4f0 kernel/time/timekeeping.c:883 Code: 4f 92 89 48 c1 e8 03 42 80 3c 20 00 0f 85 25 03 00 00 48 83 3d e5 ff 21 08 00 0f 84 a2 02 00 00 e8 aa 37 11 00 4c 89 ef 57 9d <0f> 1f 44 00 00 e8 9b 37 11 00 4c 8d 6d 80 49 c1 ed 03 4d 01 e5 41 RSP: 0018:ffff888097d2f950 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888097d22700 RBX: ffff888097d2fa88 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81704f56 RDI: 0000000000000293 RBP: ffff888097d2fa40 R08: ffff888097d22700 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000293 R14: 1ffff11012fa5f32 R15: 0000000000000200 select_estimate_accuracy+0xd7/0x4e0 fs/select.c:87 ep_poll+0x6fe/0x1490 fs/eventpoll.c:1758 do_epoll_wait+0x1b3/0x200 fs/eventpoll.c:2198 __do_sys_epoll_wait fs/eventpoll.c:2208 [inline] __se_sys_epoll_wait fs/eventpoll.c:2205 [inline] __x64_sys_epoll_wait+0x97/0xf0 fs/eventpoll.c:2205 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa2101e4943 Code: 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 83 3d b5 dc 2a 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 3b c4 00 00 48 89 04 24 RSP: 002b:00007ffca8db2398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000bb8 RCX: 00007fa2101e4943 RDX: 0000000000000008 RSI: 00007ffca8db2490 RDI: 000000000000000a RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000bb8 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 0000000002115150 R15: 000000000210f250