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-executor0:13034 blocked for more than 140 seconds. Not tainted 4.18.0-rc5-next-20180720+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D24160 13034 4477 0x00000004 Call Trace: context_switch kernel/sched/core.c:2821 [inline] __schedule+0x87c/0x1ea0 kernel/sched/core.c:3469 schedule+0xfb/0x450 kernel/sched/core.c:3513 __rwsem_down_write_failed_common+0x95d/0x1630 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xaa/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:752 [inline] generic_file_write_iter+0xed/0x870 mm/filemap.c:3200 call_write_iter include/linux/fs.h:1826 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6af/0x9d0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456959 Code: fd b4 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 b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f89eba0ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f89eba0b6d4 RCX: 0000000000456959 RDX: 00000000fffffe45 RSI: 0000000020000180 RDI: 0000000000000013 RBP: 000000000072bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d6480 R14: 00000000004c9807 R15: 0000000000000001 INFO: task syz-executor0:13037 blocked for more than 140 seconds. Not tainted 4.18.0-rc5-next-20180720+ #12 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D24968 13037 4477 0x00000004 Call Trace: context_switch kernel/sched/core.c:2821 [inline] __schedule+0x87c/0x1ea0 kernel/sched/core.c:3469 schedule+0xfb/0x450 kernel/sched/core.c:3513 __rwsem_down_write_failed_common+0x95d/0x1630 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xaa/0x130 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:752 [inline] generic_file_write_iter+0xed/0x870 mm/filemap.c:3200 call_write_iter include/linux/fs.h:1826 [inline] aio_write+0x3b1/0x610 fs/aio.c:1541 io_submit_one+0x997/0xe20 fs/aio.c:1639 __do_sys_io_submit fs/aio.c:1717 [inline] __se_sys_io_submit fs/aio.c:1688 [inline] __x64_sys_io_submit+0x1b7/0x550 fs/aio.c:1688 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456959 Code: fd b4 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 b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f89eb9e9c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f89eb9ea6d4 RCX: 0000000000456959 RDX: 0000000020000400 RSI: 0000000000000001 RDI: 00007f89eba0c000 RBP: 000000000072bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cc3a0 R14: 00000000004c30fe R15: 0000000000000002 INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 900 Comm: khungtaskd Not tainted 4.18.0-rc5-next-20180720+ #12 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+0x1c9/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.3+0x48/0x88 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x151/0x192 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:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0xb39/0x10b0 kernel/hung_task.c:265 kthread+0x345/0x410 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.408 msecs NMI backtrace for cpu 1 CPU: 1 PID: 12967 Comm: syz-executor0 Not tainted 4.18.0-rc5-next-20180720+ #12 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:write_comp_data+0xa/0x70 kernel/kcov.c:121 Code: e8 cb cb 3e 00 e9 ad fc ff ff 4c 89 ef e8 1e cb 3e 00 e9 76 fc ff ff e8 04 a3 ca ff 90 90 90 90 55 65 4c 8b 04 25 40 ee 01 00 <65> 8b 05 6f 47 85 7e 48 89 e5 a9 00 01 1f 00 75 51 41 8b 80 98 12 RSP: 0018:ffff880195d0e858 EFLAGS: 00000006 RAX: 0000000000040000 RBX: ffff8801d269b7e0 RCX: ffffffff81d73f95 RDX: 000000000000000c RSI: 0000000000000010 RDI: 0000000000000005 RBP: ffff880195d0e868 R08: ffff8801977ec3c0 R09: fffff94000dc0b7e R10: fffff94000dc0b7e R11: ffffea0006e05bf7 R12: 000000000000000c R13: dffffc0000000000 R14: 000000000000000b R15: 00000000000026ff FS: 00007f89eba2d700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 00000001d333b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lookup_bh_lru fs/buffer.c:1261 [inline] __find_get_block+0x165/0xe60 fs/buffer.c:1291 __getblk_slow fs/buffer.c:1040 [inline] __getblk_gfp+0x2be/0xb10 fs/buffer.c:1321 __bread_gfp+0x2d/0x310 fs/buffer.c:1355 sb_bread include/linux/buffer_head.h:307 [inline] fat12_ent_bread+0x14e/0x3d0 fs/fat/fatent.c:76 fat_ent_read_block fs/fat/fatent.c:442 [inline] fat_alloc_clusters+0x8ce/0x16e0 fs/fat/fatent.c:490 fat_add_cluster+0x7a/0x150 fs/fat/inode.c:101 __fat_get_block fs/fat/inode.c:148 [inline] fat_get_block+0x373/0xaf0 fs/fat/inode.c:183 __block_write_begin_int+0x50d/0x1b70 fs/buffer.c:1967 __block_write_begin fs/buffer.c:2017 [inline] block_write_begin+0xda/0x370 fs/buffer.c:2076 cont_write_begin+0x567/0x860 fs/buffer.c:2429 fat_write_begin+0x8d/0x120 fs/fat/inode.c:229 generic_perform_write+0x3ae/0x6c0 mm/filemap.c:3050 __generic_file_write_iter+0x26e/0x630 mm/filemap.c:3175 generic_file_write_iter+0x438/0x870 mm/filemap.c:3203 call_write_iter include/linux/fs.h:1826 [inline] aio_write+0x3b1/0x610 fs/aio.c:1541 io_submit_one+0x997/0xe20 fs/aio.c:1639 __do_sys_io_submit fs/aio.c:1717 [inline] __se_sys_io_submit fs/aio.c:1688 [inline] __x64_sys_io_submit+0x1b7/0x550 fs/aio.c:1688 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456959 Code: fd b4 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 b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f89eba2cc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f89eba2d6d4 RCX: 0000000000456959 RDX: 0000000020000400 RSI: 0000000000000001 RDI: 00007f89eba0c000 RBP: 000000000072be80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cc3a0 R14: 00000000004c30fe R15: 0000000000000000