INFO: task syz.8.25:4726 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.8.25 state:D stack:0 pid:4726 ppid:4628 flags:0x00000001 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xdb4/0x1a6c kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 rwsem_down_write_slowpath+0xba8/0x12cc kernel/locking/rwsem.c:1189 __down_write_common kernel/locking/rwsem.c:1314 [inline] __down_write kernel/locking/rwsem.c:1323 [inline] down_write+0x84/0x88 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 vfs_fallocate+0x4a4/0x5fc fs/open.c:323 ksys_fallocate fs/open.c:346 [inline] __do_sys_fallocate fs/open.c:354 [inline] __se_sys_fallocate fs/open.c:352 [inline] __arm64_sys_fallocate+0xc4/0x114 fs/open.c:352 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 INFO: task syz.7.24:4727 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.7.24 state:D stack:0 pid:4727 ppid:4623 flags:0x00000001 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xdb4/0x1a6c kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 rwsem_down_write_slowpath+0xba8/0x12cc kernel/locking/rwsem.c:1189 __down_write_common kernel/locking/rwsem.c:1314 [inline] __down_write kernel/locking/rwsem.c:1323 [inline] down_write+0x84/0x88 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 vfs_fallocate+0x4a4/0x5fc fs/open.c:323 ksys_fallocate fs/open.c:346 [inline] __do_sys_fallocate fs/open.c:354 [inline] __se_sys_fallocate fs/open.c:352 [inline] __arm64_sys_fallocate+0xc4/0x114 fs/open.c:352 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 INFO: task syz.0.27:4984 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.27 state:D stack:0 pid:4984 ppid:4862 flags:0x00000001 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xdb4/0x1a6c kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 rwsem_down_write_slowpath+0xba8/0x12cc kernel/locking/rwsem.c:1189 __down_write_common kernel/locking/rwsem.c:1314 [inline] __down_write kernel/locking/rwsem.c:1323 [inline] down_write+0x84/0x88 kernel/locking/rwsem.c:1574 inode_lock include/linux/fs.h:758 [inline] blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 vfs_fallocate+0x4a4/0x5fc fs/open.c:323 ksys_fallocate fs/open.c:346 [inline] __do_sys_fallocate fs/open.c:354 [inline] __se_sys_fallocate fs/open.c:352 [inline] __arm64_sys_fallocate+0xc4/0x114 fs/open.c:352 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015557db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc48 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffff8000155585d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3} , at: rcu_tasks_one_gp+0x40/0xc48 kernel/rcu/tasks.h:517 3 locks held by kworker/0:1/14: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff80001cb87c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000ddc38240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 1 lock held by khungtaskd/28: #0: ffff800015557440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 3 locks held by kworker/0:2/3432: #0: ffff0000d5ddf138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff8000227e7c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff800017a02e48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 2 locks held by getty/4079: #0: ffff0000d63a5098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80002093e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2e8/0xfa8 drivers/tty/n_tty.c:2198 3 locks held by kworker/0:5/4406: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800020c57c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000f7e49240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 3 locks held by kworker/1:15/4458: #0: ffff0000d5ddf138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800020db7c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff800017a02e48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:74 3 locks held by kworker/1:20/4464: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1 #1: ffff800020e17c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267 #2: ffff0000d457e240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x2708 drivers/net/netdevsim/fib.c:1491 2 locks held by kworker/u4:7/4573: 3 locks held by syz.5.22/4725: 1 lock held by syz.8.25/4726: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.7.24/4727: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.0.27/4984: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.3.30/5204: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.2.29/5205: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.4.31/5206: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.1.28/5207: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.6.32/5233: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.7.34/5302: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.5.33/5303: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.9.36/5324: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.8.35/5325: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3} , at: inode_lock include/linux/fs.h:758 [inline] , at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.0.37/5385: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.2.38/5390: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.3.39/5409: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.1.40/5410: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.4.41/5411: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.9.46/5486: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.8.45/5497: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.5.43/5528: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.7.44/5530: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.6.42/5531: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.0.47/5585: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.1.49/5612: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.3.50/5613: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.2.48/5614: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.4.51/5615: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.9.52/5688: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.7.54/5729: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.8.53/5730: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.6.55/5731: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz.5.56/5732: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 1 lock held by syz-executor/5745: #0: ffff800017a02e48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a02e48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6155 5 locks held by syz-executor/5748: #0: ffff0000d9326460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x254/0x7c8 fs/read_write.c:580 #1: ffff00011af6c088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1b8/0x4b4 fs/kernfs/file.c:343 #2: ffff0000d18e7660 (kn->active#56){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline] #2: ffff0000d18e7660 (kn->active#56){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1f8/0x4b4 fs/kernfs/file.c:344 #3: ffff800016dae048 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xdc/0x330 drivers/net/netdevsim/bus.c:209 #4: ffff0000f39510e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:885 [inline] #4: ffff0000f39510e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1100 [inline] #4: ffff0000f39510e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x9c/0x6e4 drivers/base/dd.c:1303 4 locks held by syz-executor/5749: #0: ffff0000d9326460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x254/0x7c8 fs/read_write.c:580 #1: ffff000118735088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1b8/0x4b4 fs/kernfs/file.c:343 #2: ffff0000d18e7660 (kn->active#56){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline] #2: ffff0000d18e7660 (kn->active#56){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1f8/0x4b4 fs/kernfs/file.c:344 #3: ffff800016dae048 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xdc/0x330 drivers/net/netdevsim/bus.c:209 1 lock held by syz-executor/5755: #0: ffff800017a02e48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffff800017a02e48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x64c/0xcc4 net/core/rtnetlink.c:6155 1 lock held by syz.0.57/5785: #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #0: ffff0000c5233340 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_fallocate+0x1b8/0x3fc block/fops.c:712 =============================================