================================ WARNING: inconsistent lock state 5.18.0-rc4-syzkaller-00910-g48cec73a891c #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes: ffff88805a1a4038 (&rxnet->call_lock){+.?.}-{2:2}, at: rxrpc_put_call+0x175/0x300 net/rxrpc/call_object.c:634 {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_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2a/0x40 kernel/locking/spinlock.c:300 rxrpc_service_prealloc_one+0xacf/0x1440 net/rxrpc/call_accept.c:143 rxrpc_kernel_charge_accept+0xd4/0x120 net/rxrpc/call_accept.c:487 afs_charge_preallocation+0xba/0x310 fs/afs/rxrpc.c:733 afs_open_socket+0x294/0x360 fs/afs/rxrpc.c:92 afs_net_init+0xa75/0xec0 fs/afs/main.c:126 ops_init+0xaf/0x470 net/core/net_namespace.c:134 __register_pernet_operations net/core/net_namespace.c:1146 [inline] register_pernet_operations+0x35a/0x850 net/core/net_namespace.c:1215 register_pernet_device+0x26/0x70 net/core/net_namespace.c:1302 afs_init+0xe6/0x218 fs/afs/main.c:189 do_one_initcall+0x103/0x650 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+0x6b1/0x73a init/main.c:1613 kernel_init+0x1a/0x1d0 init/main.c:1502 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 irq event stamp: 474002 hardirqs last enabled at (474002): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 hardirqs last disabled at (474001): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1097 softirqs last enabled at (473854): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (473854): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 softirqs last disabled at (473975): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (473975): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&rxnet->call_lock); lock(&rxnet->call_lock); *** DEADLOCK *** 1 lock held by swapper/0/0: #0: ffffc90000007d70 ((&call->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:35 [inline] #0: ffffc90000007d70 ((&call->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1411 stack backtrace: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.18.0-rc4-syzkaller-00910-g48cec73a891c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2a/0x40 kernel/locking/spinlock.c:300 rxrpc_put_call+0x175/0x300 net/rxrpc/call_object.c:634 rxrpc_call_timer_expired+0xa1/0xc0 net/rxrpc/call_object.c:58 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1737 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1750 __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:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:551 Code: 89 de e8 ad a6 0b f8 84 db 75 ac e8 c4 a2 0b f8 e8 2f eb 11 f8 eb 0c e8 b8 a2 0b f8 0f 00 2d d1 4b c5 00 e8 ac a2 0b f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 27 a5 0b f8 48 85 db RSP: 0018:ffffffff8ba07d60 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffffff8babc700 RSI: ffffffff896d8694 RDI: 0000000000000000 RBP: ffff88801639f864 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817f71e8 R11: 0000000000000000 R12: 0000000000000001 R13: ffff88801639f800 R14: ffff88801639f864 R15: ffff888019952004 acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:686 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3e8/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400 start_kernel+0x47f/0x4a0 init/main.c:1140 secondary_startup_64_no_verify+0xc3/0xcb ---------------- Code disassembly (best guess): 0: 89 de mov %ebx,%esi 2: e8 ad a6 0b f8 callq 0xf80ba6b4 7: 84 db test %bl,%bl 9: 75 ac jne 0xffffffb7 b: e8 c4 a2 0b f8 callq 0xf80ba2d4 10: e8 2f eb 11 f8 callq 0xf811eb44 15: eb 0c jmp 0x23 17: e8 b8 a2 0b f8 callq 0xf80ba2d4 1c: 0f 00 2d d1 4b c5 00 verw 0xc54bd1(%rip) # 0xc54bf4 23: e8 ac a2 0b f8 callq 0xf80ba2d4 28: fb sti 29: f4 hlt * 2a: 9c pushfq <-- trapping instruction 2b: 5b pop %rbx 2c: 81 e3 00 02 00 00 and $0x200,%ebx 32: fa cli 33: 31 ff xor %edi,%edi 35: 48 89 de mov %rbx,%rsi 38: e8 27 a5 0b f8 callq 0xf80ba564 3d: 48 85 db test %rbx,%rbx