BUG: sleeping function called from invalid context at block/blk-sysfs.c:766 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/3 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by swapper/3/0: #0: ffffffff8bd81e40 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2524 [inline] #0: ffffffff8bd81e40 (rcu_callback){....}-{0:0}, at: rcu_core+0x73d/0x1880 kernel/rcu/tree.c:2786 Preemption disabled at: [] unwind_next_frame+0x120/0x1ce0 arch/x86/kernel/unwind_orc.c:428 CPU: 3 PID: 0 Comm: swapper/3 Not tainted 5.17.0-syzkaller-13805-gb012b3235cb9 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9733 blk_release_queue+0x1f/0x320 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+0x1c8/0x540 lib/kobject.c:753 blkg_free.part.0+0x112/0x1f0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0x105/0x160 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0x7b1/0x1880 kernel/rcu/tree.c:2786 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:default_idle+0xb/0x10 arch/x86/kernel/process.c:734 Code: ff ff ff 48 89 df e8 14 13 63 f8 e9 55 ff ff ff 4c 89 e7 e8 07 13 63 f8 eb 96 0f 1f 44 00 00 eb 07 0f 00 2d 37 43 65 00 fb f4 cc cc cc cc 41 55 41 54 55 48 89 fd 53 e8 a2 56 17 f8 e8 7d 21 RSP: 0018:ffffc9000047fdf8 EFLAGS: 00000202 RAX: 000000000051de79 RBX: ffff888011519d00 RCX: ffffffff895e5d71 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000003 R08: 0000000000000001 R09: ffff88802cd3afd3 R10: ffffed10059a75fa R11: 0000000000000000 R12: ffffed10022a33a0 R13: 0000000000000003 R14: ffffffff8db6b910 R15: 0000000000000000 default_idle_call+0x87/0xd0 kernel/sched/idle.c:109 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0x401/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400 start_secondary+0x265/0x340 arch/x86/kernel/smpboot.c:266 secondary_startup_64_no_verify+0xc3/0xcb ================================ WARNING: inconsistent lock state 5.17.0-syzkaller-13805-gb012b3235cb9 #0 Tainted: G W -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. swapper/3/0 [HC0[0]:SC1[1]:HE0:SE0] takes: ffff888046ac2ea0 (&xa->xa_lock#8){+.?.}-{2:2}, at: xa_destroy+0xb3/0x360 lib/xarray.c:2207 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5641 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 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+0x52d/0x1190 block/blk-mq.c:3962 blk_mq_realloc_hw_ctxs+0x43d/0x590 block/blk-mq.c:3991 blk_mq_init_allocated_queue+0x457/0x13d0 block/blk-mq.c:4053 blk_mq_init_queue_data block/blk-mq.c:3906 [inline] __blk_mq_alloc_disk+0xd1/0x1c0 block/blk-mq.c:3926 floppy_alloc_disk+0x3d/0x390 drivers/block/floppy.c:4495 do_floppy_init drivers/block/floppy.c:4576 [inline] floppy_async_init+0x316/0x21ca drivers/block/floppy.c:4746 async_run_entry_fn+0x9d/0x550 kernel/async.c:127 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 irq event stamp: 5365701 hardirqs last enabled at (5365700): [] kasan_quarantine_put+0xf5/0x210 mm/kasan/quarantine.c:231 hardirqs last disabled at (5365701): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (5365701): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (5365344): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (5365344): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 softirqs last disabled at (5365373): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (5365373): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&xa->xa_lock#8); lock(&xa->xa_lock#8); *** DEADLOCK *** 1 lock held by swapper/3/0: #0: ffffffff8bd81e40 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2524 [inline] #0: ffffffff8bd81e40 (rcu_callback){....}-{0:0}, at: rcu_core+0x73d/0x1880 kernel/rcu/tree.c:2786 stack backtrace: CPU: 3 PID: 0 Comm: swapper/3 Tainted: G W 5.17.0-syzkaller-13805-gb012b3235cb9 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_usage_bug kernel/locking/lockdep.c:3935 [inline] valid_state kernel/locking/lockdep.c:3947 [inline] mark_lock_irq kernel/locking/lockdep.c:4150 [inline] mark_lock.part.0.cold+0x18/0xd8 kernel/locking/lockdep.c:4607 mark_lock kernel/locking/lockdep.c:4571 [inline] mark_usage kernel/locking/lockdep.c:4502 [inline] __lock_acquire+0x11e7/0x56c0 kernel/locking/lockdep.c:4983 lock_acquire kernel/locking/lockdep.c:5641 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 xa_destroy+0xb3/0x360 lib/xarray.c:2207 blk_mq_release+0x2b1/0x3e0 block/blk-mq.c:3887 blk_release_queue+0x15b/0x320 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+0x1c8/0x540 lib/kobject.c:753 blkg_free.part.0+0x112/0x1f0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0x105/0x160 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0x7b1/0x1880 kernel/rcu/tree.c:2786 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:default_idle+0xb/0x10 arch/x86/kernel/process.c:734 Code: ff ff ff 48 89 df e8 14 13 63 f8 e9 55 ff ff ff 4c 89 e7 e8 07 13 63 f8 eb 96 0f 1f 44 00 00 eb 07 0f 00 2d 37 43 65 00 fb f4 cc cc cc cc 41 55 41 54 55 48 89 fd 53 e8 a2 56 17 f8 e8 7d 21 RSP: 0018:ffffc9000047fdf8 EFLAGS: 00000202 RAX: 000000000051de79 RBX: ffff888011519d00 RCX: ffffffff895e5d71 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000003 R08: 0000000000000001 R09: ffff88802cd3afd3 R10: ffffed10059a75fa R11: 0000000000000000 R12: ffffed10022a33a0 R13: 0000000000000003 R14: ffffffff8db6b910 R15: 0000000000000000 default_idle_call+0x87/0xd0 kernel/sched/idle.c:109 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0x401/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400 start_secondary+0x265/0x340 arch/x86/kernel/smpboot.c:266 secondary_startup_64_no_verify+0xc3/0xcb BUG: sleeping function called from invalid context at kernel/locking/mutex.c:577 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/3 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 INFO: lockdep is turned off. Preemption disabled at: [] unwind_next_frame+0x120/0x1ce0 arch/x86/kernel/unwind_orc.c:428 CPU: 3 PID: 0 Comm: swapper/3 Tainted: G W 5.17.0-syzkaller-13805-gb012b3235cb9 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9733 __mutex_lock_common kernel/locking/mutex.c:577 [inline] __mutex_lock+0x9f/0x12f0 kernel/locking/mutex.c:733 blk_trace_shutdown+0x1d/0x100 kernel/trace/blktrace.c:773 blk_release_queue+0x16f/0x320 block/blk-sysfs.c:782 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1c8/0x540 lib/kobject.c:753 blkg_free.part.0+0x112/0x1f0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0x105/0x160 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0x7b1/0x1880 kernel/rcu/tree.c:2786 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:default_idle+0xb/0x10 arch/x86/kernel/process.c:734 Code: ff ff ff 48 89 df e8 14 13 63 f8 e9 55 ff ff ff 4c 89 e7 e8 07 13 63 f8 eb 96 0f 1f 44 00 00 eb 07 0f 00 2d 37 43 65 00 fb f4 cc cc cc cc 41 55 41 54 55 48 89 fd 53 e8 a2 56 17 f8 e8 7d 21 RSP: 0018:ffffc9000047fdf8 EFLAGS: 00000202 RAX: 000000000051de79 RBX: ffff888011519d00 RCX: ffffffff895e5d71 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000003 R08: 0000000000000001 R09: ffff88802cd3afd3 R10: ffffed10059a75fa R11: 0000000000000000 R12: ffffed10022a33a0 R13: 0000000000000003 R14: ffffffff8db6b910 R15: 0000000000000000 default_idle_call+0x87/0xd0 kernel/sched/idle.c:109 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0x401/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400 start_secondary+0x265/0x340 arch/x86/kernel/smpboot.c:266 secondary_startup_64_no_verify+0xc3/0xcb ---------------- Code disassembly (best guess), 2 bytes skipped: 0: ff 48 89 decl -0x77(%rax) 3: df e8 fucomip %st(0),%st 5: 14 13 adc $0x13,%al 7: 63 f8 movsxd %eax,%edi 9: e9 55 ff ff ff jmpq 0xffffff63 e: 4c 89 e7 mov %r12,%rdi 11: e8 07 13 63 f8 callq 0xf863131d 16: eb 96 jmp 0xffffffae 18: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1d: eb 07 jmp 0x26 1f: 0f 00 2d 37 43 65 00 verw 0x654337(%rip) # 0x65435d 26: fb sti 27: f4 hlt * 28: c3 retq <-- trapping instruction 29: cc int3 2a: cc int3 2b: cc int3 2c: cc int3 2d: 41 55 push %r13 2f: 41 54 push %r12 31: 55 push %rbp 32: 48 89 fd mov %rdi,%rbp 35: 53 push %rbx 36: e8 a2 56 17 f8 callq 0xf81756dd 3b: e8 .byte 0xe8 3c: 7d 21 jge 0x5f