BUG: scheduling while atomic: syz-executor.1/9519/0x00000102 Modules linked in: CPU: 0 PID: 9519 Comm: syz-executor.1 Not tainted 5.17.0-syzkaller-04443-ged4643521e6a #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace.part.0+0xcc/0xe0 arch/arm64/kernel/stacktrace.c:184 dump_backtrace arch/arm64/kernel/stacktrace.c:190 [inline] show_stack+0x18/0x6c arch/arm64/kernel/stacktrace.c:191 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x68/0x84 lib/dump_stack.c:106 dump_stack+0x18/0x34 lib/dump_stack.c:113 __schedule_bug+0x60/0x80 kernel/sched/core.c:5617 schedule_debug kernel/sched/core.c:5644 [inline] __schedule+0x74c/0x7f0 kernel/sched/core.c:6273 schedule+0x54/0xd0 kernel/sched/core.c:6454 rwsem_down_write_slowpath+0x29c/0x5a0 kernel/locking/rwsem.c:1142 __down_write_common kernel/locking/rwsem.c:1259 [inline] __down_write_common kernel/locking/rwsem.c:1256 [inline] __down_write kernel/locking/rwsem.c:1268 [inline] down_write+0x58/0x64 kernel/locking/rwsem.c:1515 inode_lock include/linux/fs.h:778 [inline] simple_recursive_removal+0x124/0x270 fs/libfs.c:288 debugfs_remove fs/debugfs/inode.c:732 [inline] debugfs_remove+0x5c/0x80 fs/debugfs/inode.c:726 blk_release_queue+0x7c/0xf0 block/blk-sysfs.c:785 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x98/0x114 lib/kobject.c:753 blk_put_queue+0x14/0x20 block/blk-core.c:271 blkg_free.part.0+0x54/0x80 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0x44/0x70 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0x324/0x590 kernel/rcu/tree.c:2786 rcu_core_si+0x10/0x20 kernel/rcu/tree.c:2803 _stext+0x124/0x2a0 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0xe4/0x100 kernel/softirq.c:637 irq_exit_rcu+0x10/0x1c kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:459 [inline] el1_interrupt+0x38/0x64 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] preempt_schedule_irq+0x3c/0x130 kernel/sched/core.c:6689 arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:265 [inline] __el1_irq arch/arm64/kernel/entry-common.c:461 [inline] el1_interrupt+0x4c/0x64 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 vprintk+0x0/0xe4 start_creating.part.0+0x144/0x160 fs/debugfs/inode.c:355 start_creating fs/debugfs/inode.c:330 [inline] debugfs_create_dir+0x48/0x1e4 fs/debugfs/inode.c:557 blk_register_queue+0xa4/0x23c block/blk-sysfs.c:841 device_add_disk+0x214/0x36c block/genhd.c:502 add_disk include/linux/blkdev.h:755 [inline] loop_add+0x24c/0x2c4 drivers/block/loop.c:2063 loop_control_ioctl+0xac/0x204 drivers/block/loop.c:2185 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xa8/0xf0 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:52 el0_svc_common.constprop.0+0x44/0xec arch/arm64/kernel/syscall.c:142 do_el0_svc+0x6c/0x84 arch/arm64/kernel/syscall.c:181 el0_svc+0x44/0xb0 arch/arm64/kernel/entry-common.c:616 el0t_64_sync_handler+0x1a4/0x1b0 arch/arm64/kernel/entry-common.c:634 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:581 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 12 at kernel/rcu/tree.c:2592 rcu_do_batch kernel/rcu/tree.c:2592 [inline] WARNING: CPU: 0 PID: 12 at kernel/rcu/tree.c:2592 rcu_core+0x4d4/0x590 kernel/rcu/tree.c:2786 Modules linked in: CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G W 5.17.0-syzkaller-04443-ged4643521e6a #0 Hardware name: linux,dummy-virt (DT) pstate: a04000c9 (NzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : rcu_do_batch kernel/rcu/tree.c:2592 [inline] pc : rcu_core+0x4d4/0x590 kernel/rcu/tree.c:2786 lr : rcu_do_batch kernel/rcu/tree.c:2572 [inline] lr : rcu_core+0x38c/0x590 kernel/rcu/tree.c:2786 sp : ffff80000a663d00 x29: ffff80000a663d00 x28: ffff800008121018 x27: 0000000000000000 x26: 000000000000000a x25: ffffffffffffffff x24: ffff80000a663d60 x23: ffff80000a33cc80 x22: ffff00007fbc27f8 x21: 0000000000000000 x20: ffff00007fbc2780 x19: 0000000000000000 x18: 0000000000000000 x17: ffff8000759b0000 x16: ffff800008004000 x15: 0000182b2f30792a x14: 00000000000001ab x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000002 x10: ffff8000759b0000 x9 : 00000000005d0e90 x8 : ffff8000080102a0 x7 : ffff80000a6639e4 x6 : 000000000014ff78 x5 : f7ff000005236c00 x4 : ffff00007fbc63d0 x3 : 000000000014ff80 x2 : 0000000000002710 x1 : ffffffffffffd8f0 x0 : 0000000000000001 Call trace: rcu_do_batch kernel/rcu/tree.c:2592 [inline] rcu_core+0x4d4/0x590 kernel/rcu/tree.c:2786 rcu_core_si+0x10/0x20 kernel/rcu/tree.c:2803 _stext+0x124/0x2a0 run_ksoftirqd+0x4c/0x60 kernel/softirq.c:921 smpboot_thread_fn+0x23c/0x270 kernel/smpboot.c:164 kthread+0x108/0x10c kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:867 ---[ end trace 0000000000000000 ]---