rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-...0: (0 ticks this GP) idle=d174/1/0x4000000000000000 softirq=51725/51725 fqs=2098 rcu: hardirqs softirqs csw/system rcu: number: 0 0 0 rcu: cputime: 0 0 0 ==> 52550(ms) rcu: (detected by 0, t=10506 jiffies, g=41913, q=659 ncpus=2) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 14479 Comm: syz-executor Not tainted 6.13.0-rc2-syzkaller-00159-gf932fb9b4074 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:124 [inline] RIP: 0010:lock_release+0x17a/0x6f0 kernel/locking/lockdep.c:5866 Code: 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 00 0f 85 19 05 00 00 49 81 3c 24 a0 c7 7b 93 0f 84 65 02 00 00 9c 8f 04 24 48 c7 c7 20 db 6c 8b e8 59 84 b2 09 48 89 ea 83 e5 07 48 b8 00 RSP: 0018:ffffc90000a18d50 EFLAGS: 00000087 RAX: dffffc0000000000 RBX: 1ffff920001431ac RCX: ffffffff8176a9e9 RDX: 1ffff110170e5943 RSI: 0000000000000000 RDI: ffff8880284caf1c RBP: ffffffff905f48b4 R08: 0000000000000000 R09: fffffbfff20be2b2 R10: ffffffff905f1597 R11: 0000000000000003 R12: ffff8880b872ca18 R13: ffff8880b872cb00 R14: ffff8880284ca440 R15: ffffffff8940e0e0 FS: 0000555582513500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff5b43f6d58 CR3: 000000004e864000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline] _raw_spin_unlock_irqrestore+0x1a/0x80 kernel/locking/spinlock.c:194 __run_hrtimer kernel/time/hrtimer.c:1735 [inline] __hrtimer_run_queues+0x53d/0xae0 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:stack_access_ok+0x167/0x200 arch/x86/kernel/unwind_orc.c:398 Code: 85 95 00 00 00 49 39 ee 48 8b 43 10 77 29 48 39 e8 76 24 4c 01 e5 48 39 e8 0f 93 c0 49 39 ee 0f 92 c2 21 d0 48 83 c4 08 5b 5d <41> 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 83 c4 08 31 c0 5b 5d 41 RSP: 0018:ffffc900038d6cc0 EFLAGS: 00000292 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc900038d8000 RDX: ffffc900038d7201 RSI: ffffc900038d72d8 RDI: ffffc900038d6d58 RBP: ffffc900038d6da0 R08: ffffffff9104e336 R09: ffffffff9104e2f2 R10: ffffc900038d6d58 R11: 00000000000139f3 R12: 0000000000000008 R13: ffffc900038d6d68 R14: ffffc900038d6d60 R15: ffffc900038d0000 deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline] unwind_next_frame+0xac7/0x20c0 arch/x86/kernel/unwind_orc.c:585 arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4104 [inline] slab_alloc_node mm/slub.c:4153 [inline] kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4160 __kernfs_new_node+0xd3/0x890 fs/kernfs/dir.c:624 kernfs_new_node+0x186/0x240 fs/kernfs/dir.c:700 __kernfs_create_file+0x53/0x350 fs/kernfs/file.c:1034 sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:313 sysfs_merge_group+0x1b1/0x340 fs/sysfs/group.c:376 dpm_sysfs_add+0x237/0x280 drivers/base/power/sysfs.c:708 device_add+0x9a8/0x1a70 drivers/base/core.c:3625 netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:2139 register_netdevice+0x1473/0x1e90 net/core/dev.c:10599 rtnl_newlink_create net/core/rtnetlink.c:3788 [inline] __rtnl_newlink net/core/rtnetlink.c:3896 [inline] rtnl_newlink+0x1917/0x1d60 net/core/rtnetlink.c:4011 rtnetlink_rcv_msg+0x95b/0xea0 net/core/rtnetlink.c:6921 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2542 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] __sys_sendto+0x488/0x4f0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f312f587bac Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b RSP: 002b:00007ffe127259d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f31302a4620 RCX: 00007f312f587bac RDX: 000000000000003c RSI: 00007f31302a4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffe12725a24 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f31302a4670 R15: 0000000000000000