net_ratelimit: 270 callbacks suppressed Dead loop on virtual device ipvlan1, fix it urgently! Dead loop on virtual device ipvlan1, fix it urgently! rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-...!: (1 GPs behind) idle=dbe4/1/0x4000000000000000 softirq=22903/22904 fqs=1 rcu: (detected by 0, t=10505 jiffies, g=24417, q=1880 ncpus=2) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.11.0-rc3-syzkaller-00200-g0d76fc7e27b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] RIP: 0010:rcu_is_watching+0x6c/0xb0 kernel/rcu/tree.c:726 Code: 81 00 48 c7 c3 78 7c 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 22 8b 03 65 ff 0d 71 13 8a 7e 74 10 83 e0 04 e8 02 5b 41 5e 41 5f c3 cc cc cc cc e8 92 f2 86 ff eb e9 89 d9 RSP: 0018:ffffc90000a18320 EFLAGS: 00000002 RAX: 0000000000000004 RBX: ffff8880b9337c78 RCX: ffffffff816ff4c0 RDX: 0000000000000000 RSI: ffffffff8c6068e0 RDI: ffffffff8c6068a0 RBP: ffffc90000a18470 R08: ffffffff9017d4ef R09: 1ffffffff202fa9d R10: dffffc0000000000 R11: fffffbfff202fa9e R12: 1ffff92000143074 R13: ffffffff89bd57f4 R14: ffffffff8e295a48 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f52b8734d58 CR3: 000000000e734000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0xbf/0xa30 kernel/locking/lockdep.c:5770 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline] _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] advance_sched+0x9b4/0xca0 net/sched/sch_taprio.c:981 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ee 48 3a f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 23 7c a2 f5 65 8b 05 54 51 43 74 85 c0 74 43 48 c7 04 24 0e 36 RSP: 0018:ffffc90000a188c0 EFLAGS: 00000206 RAX: 32a6b86cbd358800 RBX: 1ffff9200014311c RCX: ffffffff817040ca RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: 0000000000000001 RBP: ffffc90000a18950 R08: ffffffff9372f937 R09: 1ffffffff26e5f26 R10: dffffc0000000000 R11: fffffbfff26e5f27 R12: dffffc0000000000 R13: 1ffff92000143118 R14: ffffc90000a188e0 R15: 0000000000000246 krc_this_cpu_unlock kernel/rcu/tree.c:3340 [inline] kvfree_call_rcu+0x48c/0x790 kernel/rcu/tree.c:3847 rate_control_set_rates+0x79d/0x10f0 net/mac80211/rate.c:969 rate_control_tx_status+0x269/0x380 net/mac80211/rate.c:85 ieee80211_tx_status_ext+0x1ff7/0x2970 net/mac80211/status.c:1227 ieee80211_tx_status_skb+0x248/0x330 net/mac80211/status.c:1131 ieee80211_handle_queued_frames+0x119/0x1e0 net/mac80211/main.c:443 tasklet_action_common+0x321/0x4d0 kernel/softirq.c:785 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 ieee80211_tx_skb_tid+0x264/0x420 net/mac80211/tx.c:6130 ieee80211_ibss_sta_expire net/mac80211/ibss.c:1251 [inline] ieee80211_sta_merge_ibss net/mac80211/ibss.c:1274 [inline] ieee80211_ibss_work+0x834/0x14c0 net/mac80211/ibss.c:1671 cfg80211_wiphy_work+0x2db/0x490 net/wireless/core.c:440 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: rcu_preempt kthread starved for 10500 jiffies! g24417 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:25816 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: CPU: 0 UID: 0 PID: 2536 Comm: kworker/u8:9 Not tainted 6.11.0-rc3-syzkaller-00200-g0d76fc7e27b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:312 [inline] RIP: 0010:smp_call_function_many_cond+0x1860/0x29d0 kernel/smp.c:856 Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 99 14 0c 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 44 10 0c 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 28 10 RSP: 0018:ffffc900098b7700 EFLAGS: 00000293 RAX: ffffffff81877948 RBX: 1ffff110172688f9 RCX: ffff88802a26bc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900098b78e0 R08: ffffffff81877917 R09: 1ffffffff26e5f08 R10: dffffc0000000000 R11: fffffbfff26e5f09 R12: dffffc0000000000 R13: ffff8880b93447c8 R14: ffff8880b923fb80 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fae33bfffc4 CR3: 000000000e734000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2085 [inline] text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2295 text_poke_flush arch/x86/kernel/alternative.c:2486 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2493 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 toggle_allocation_gate+0xb5/0x250 mm/kfence/core.c:833 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244