------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=402 set at [<0000000000084e4f>] worker_set_flags kernel/workqueue.c:983 [inline] do not call blocking ops when !TASK_RUNNING; state=402 set at [<0000000000084e4f>] worker_thread+0x498/0xc40 kernel/workqueue.c:2445 WARNING: CPU: 0 PID: 26830 at kernel/sched/core.c:9656 __might_sleep+0x10c/0x144 kernel/sched/core.c:9656 Modules linked in: CPU: 0 PID: 26830 Comm: kworker/0:0 Not tainted 5.17.0-syzkaller-11407-gae085d7f9365 #0 Hardware name: linux,dummy-virt (DT) Workqueue: 0x0 (events) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __might_sleep+0x10c/0x144 kernel/sched/core.c:9656 lr : __might_sleep+0x10c/0x144 kernel/sched/core.c:9656 sp : ffff800013497760 x29: ffff800013497760 x28: dfff800000000000 x27: 1fffe000020908c6 x26: 1ffff00001c41fdc x25: 0000000000000000 x24: ffff80000ca2a0a0 x23: ffff00000ea05040 x22: ffff00000ea05040 x21: 0000000000000402 x20: 00000000000002fe x19: ffff80000ca29c60 x18: ffff00006aa20c3c x17: 3c5b207461207465 x16: 73203230343d6574 x15: 617473203b474e49 x14: 1ffff00002692e2a x13: 0000000000000001 x12: ffff60000d54419d x11: 1fffe0000d54419c x10: ffff60000d54419c x9 : dfff800000000000 x8 : ffff00006aa20ce3 x7 : 0000000000000001 x6 : 00009ffff2abbe64 x5 : ffff00006aa20ce0 x4 : 1fffe00001d40a09 x3 : dfff800000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00000ea05040 Call trace: __might_sleep+0x10c/0x144 kernel/sched/core.c:9656 blk_release_queue+0x30/0x25c block/blk-sysfs.c:766 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x170/0x460 lib/kobject.c:753 blk_put_queue+0x14/0x20 block/blk-core.c:270 blkg_free.part.0+0xdc/0x1a0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0xbc/0x110 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0xc60/0x1a00 kernel/rcu/tree.c:2786 rcu_core_si+0x10/0x20 kernel/rcu/tree.c:2803 _stext+0x3f4/0xff8 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:637 irq_exit_rcu+0x14/0x80 kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:459 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:473 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:478 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:577 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] _raw_spin_unlock_irq+0x80/0x15c kernel/locking/spinlock.c:202 worker_thread+0x4f8/0xc40 kernel/workqueue.c:2456 kthread+0x234/0x2a0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:867 irq event stamp: 2294025 hardirqs last enabled at (2294024): [] __up_console_sem+0x78/0x84 kernel/printk/printk.c:264 hardirqs last disabled at (2294025): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:395 softirqs last enabled at (2293864): [] spin_unlock_bh include/linux/spinlock.h:394 [inline] softirqs last enabled at (2293864): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:814 [inline] softirqs last enabled at (2293864): [] nsim_dev_trap_report_work+0x690/0x9ac drivers/net/netdevsim/dev.c:840 softirqs last disabled at (2293879): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (2293879): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (2293879): [] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:637 ---[ end trace 0000000000000000 ]--- BUG: sleeping function called from invalid context at block/blk-sysfs.c:766 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 26830, name: kworker/0:0 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by kworker/0:0/26830: #0: ffff80000de84d20 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2524 [inline] #0: ffff80000de84d20 (rcu_callback){....}-{0:0}, at: rcu_core+0xbf8/0x1a00 kernel/rcu/tree.c:2786 Preemption disabled at: [] process_one_work+0x884/0x17b4 kernel/workqueue.c:2317 CPU: 0 PID: 26830 Comm: kworker/0:0 Tainted: G W 5.17.0-syzkaller-11407-gae085d7f9365 #0 Hardware name: linux,dummy-virt (DT) Workqueue: 0x0 (events) Call trace: dump_backtrace+0x1e0/0x270 arch/arm64/kernel/stacktrace.c:184 show_stack+0x18/0x70 arch/arm64/kernel/stacktrace.c:191 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x9c/0xd8 lib/dump_stack.c:106 dump_stack+0x1c/0x38 lib/dump_stack.c:113 __might_resched+0x3c8/0x530 kernel/sched/core.c:9733 __might_sleep+0x90/0x144 kernel/sched/core.c:9662 blk_release_queue+0x30/0x25c block/blk-sysfs.c:766 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x170/0x460 lib/kobject.c:753 blk_put_queue+0x14/0x20 block/blk-core.c:270 blkg_free.part.0+0xdc/0x1a0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0xbc/0x110 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0xc60/0x1a00 kernel/rcu/tree.c:2786 rcu_core_si+0x10/0x20 kernel/rcu/tree.c:2803 _stext+0x3f4/0xff8 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:637 irq_exit_rcu+0x14/0x80 kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:459 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:473 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:478 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:577 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] _raw_spin_unlock_irq+0x80/0x15c kernel/locking/spinlock.c:202 worker_thread+0x4f8/0xc40 kernel/workqueue.c:2456 kthread+0x234/0x2a0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:867 ================================ WARNING: inconsistent lock state 5.17.0-syzkaller-11407-gae085d7f9365 #0 Tainted: G W -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. kworker/0:0/26830 [HC0[0]:SC1[1]:HE0:SE0] takes: ffff000010484590 (&xa->xa_lock#6){+.?.}-{2:2}, at: xa_destroy+0x8c/0x240 lib/xarray.c:2207 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5641 [inline] lock_acquire+0x568/0x93c kernel/locking/lockdep.c:5606 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x8c/0x120 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:349 [inline] xa_insert include/linux/xarray.h:772 [inline] blk_mq_init_hctx block/blk-mq.c:3501 [inline] blk_mq_alloc_and_init_hctx+0x384/0xd64 block/blk-mq.c:3962 blk_mq_realloc_hw_ctxs+0x258/0x350 block/blk-mq.c:3991 blk_mq_init_allocated_queue+0x3c8/0x1054 block/blk-mq.c:4053 blk_mq_init_queue_data block/blk-mq.c:3906 [inline] __blk_mq_alloc_disk+0xb4/0x15c block/blk-mq.c:3926 loop_add+0x29c/0x7ac drivers/block/loop.c:2011 loop_init+0x134/0x158 drivers/block/loop.c:2267 do_one_initcall+0x128/0x950 init/main.c:1298 do_initcall_level init/main.c:1371 [inline] do_initcalls init/main.c:1387 [inline] do_basic_setup init/main.c:1406 [inline] kernel_init_freeable+0x71c/0x7a0 init/main.c:1613 kernel_init+0x28/0x140 init/main.c:1502 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:867 irq event stamp: 2294193 hardirqs last enabled at (2294192): [] kasan_quarantine_put+0x108/0x254 mm/kasan/quarantine.c:231 hardirqs last disabled at (2294193): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (2294193): [] _raw_spin_lock_irqsave+0xfc/0x160 kernel/locking/spinlock.c:162 softirqs last enabled at (2293864): [] spin_unlock_bh include/linux/spinlock.h:394 [inline] softirqs last enabled at (2293864): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:814 [inline] softirqs last enabled at (2293864): [] nsim_dev_trap_report_work+0x690/0x9ac drivers/net/netdevsim/dev.c:840 softirqs last disabled at (2293879): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (2293879): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (2293879): [] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:637 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&xa->xa_lock#6); lock(&xa->xa_lock#6); *** DEADLOCK *** 1 lock held by kworker/0:0/26830: #0: ffff80000de84d20 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2524 [inline] #0: ffff80000de84d20 (rcu_callback){....}-{0:0}, at: rcu_core+0xbf8/0x1a00 kernel/rcu/tree.c:2786 stack backtrace: CPU: 0 PID: 26830 Comm: kworker/0:0 Tainted: G W 5.17.0-syzkaller-11407-gae085d7f9365 #0 Hardware name: linux,dummy-virt (DT) Workqueue: 0x0 (events) Call trace: dump_backtrace+0x1e0/0x270 arch/arm64/kernel/stacktrace.c:184 show_stack+0x18/0x70 arch/arm64/kernel/stacktrace.c:191 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x9c/0xd8 lib/dump_stack.c:106 dump_stack+0x1c/0x38 lib/dump_stack.c:113 print_usage_bug.part.0+0x4c4/0x4e8 kernel/locking/lockdep.c:3935 print_usage_bug kernel/locking/lockdep.c:3905 [inline] valid_state kernel/locking/lockdep.c:3947 [inline] mark_lock_irq kernel/locking/lockdep.c:4156 [inline] mark_lock+0x1084/0x14b0 kernel/locking/lockdep.c:4607 mark_usage kernel/locking/lockdep.c:4502 [inline] __lock_acquire+0x1038/0x4b14 kernel/locking/lockdep.c:4983 lock_acquire kernel/locking/lockdep.c:5641 [inline] lock_acquire+0x568/0x93c kernel/locking/lockdep.c:5606 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xa8/0x160 kernel/locking/spinlock.c:162 xa_destroy+0x8c/0x240 lib/xarray.c:2207 blk_mq_release+0x208/0x2e4 block/blk-mq.c:3887 blk_release_queue+0x100/0x25c block/blk-sysfs.c:780 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x170/0x460 lib/kobject.c:753 blk_put_queue+0x14/0x20 block/blk-core.c:270 blkg_free.part.0+0xdc/0x1a0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0xbc/0x110 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0xc60/0x1a00 kernel/rcu/tree.c:2786 rcu_core_si+0x10/0x20 kernel/rcu/tree.c:2803 _stext+0x3f4/0xff8 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:637 irq_exit_rcu+0x14/0x80 kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:459 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:473 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:478 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:577 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] _raw_spin_unlock_irq+0x80/0x15c kernel/locking/spinlock.c:202 worker_thread+0x4f8/0xc40 kernel/workqueue.c:2456 kthread+0x234/0x2a0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:867 BUG: sleeping function called from invalid context at block/blk-sysfs.c:766 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1637, name: syz-executor.0 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 INFO: lockdep is turned off. Preemption disabled at: [] spin_lock include/linux/spinlock.h:349 [inline] [] futex_wake+0x148/0x390 kernel/futex/waitwake.c:164 CPU: 0 PID: 1637 Comm: syz-executor.0 Tainted: G W 5.17.0-syzkaller-11407-gae085d7f9365 #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x1e0/0x270 arch/arm64/kernel/stacktrace.c:184 show_stack+0x18/0x70 arch/arm64/kernel/stacktrace.c:191 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x9c/0xd8 lib/dump_stack.c:106 dump_stack+0x1c/0x38 lib/dump_stack.c:113 __might_resched+0x3c8/0x530 kernel/sched/core.c:9733 __might_sleep+0x90/0x144 kernel/sched/core.c:9662 blk_release_queue+0x30/0x25c block/blk-sysfs.c:766 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x170/0x460 lib/kobject.c:753 blk_put_queue+0x14/0x20 block/blk-core.c:270 blkg_free.part.0+0xdc/0x1a0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0xbc/0x110 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0xc60/0x1a00 kernel/rcu/tree.c:2786 rcu_core_si+0x10/0x20 kernel/rcu/tree.c:2803 _stext+0x3f4/0xff8 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0x208/0x4f0 kernel/softirq.c:637 irq_exit_rcu+0x14/0x80 kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:459 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:473 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:478 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:577 futex_match kernel/futex/futex.h:137 [inline] futex_wake+0x1ec/0x390 kernel/futex/waitwake.c:167 do_futex+0x140/0x250 kernel/futex/syscalls.c:111 __do_sys_futex kernel/futex/syscalls.c:183 [inline] __se_sys_futex kernel/futex/syscalls.c:164 [inline] __arm64_sys_futex+0x15c/0x310 kernel/futex/syscalls.c:164 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x6c/0x260 arch/arm64/kernel/syscall.c:52 el0_svc_common.constprop.0+0xc4/0x254 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x9c/0xcc arch/arm64/kernel/syscall.c:181 el0_svc+0x70/0x29c arch/arm64/kernel/entry-common.c:616 el0t_64_sync_handler+0x1a4/0x1b0 arch/arm64/kernel/entry-common.c:634 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581