watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [aoe_tx0:2366] Modules linked in: irq event stamp: 38384125 hardirqs last enabled at (38384124): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (38384124): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (38384125): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (38384125): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (240014): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (240014): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (240018): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 1 UID: 0 PID: 2366 Comm: aoe_tx0 Not tainted 6.14.0-rc7-syzkaller-gb5737d35364f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] pc : _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] lr : _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 sp : ffff8000a19776b0 x29: ffff8000a19776b0 x28: ffff0001220c6130 x27: dfff800000000000 x26: 0000000000000000 x25: ffff8000915d9360 x24: ffff0000ca150f48 x23: 0000000000000003 x22: 0000000000000000 x21: ffff8000915d9360 x20: ffff800097b00900 x19: 0000000000000000 x18: ffff8000a1977360 x17: 000000000002e5fc x16: ffff800080469530 x15: 0000000000000001 x14: 1ffff00012f60120 x13: ffff8000a1978000 x12: 0000000000000003 x11: 0000000000000202 x10: 0000000000000003 x9 : 0000000000000000 x8 : 00000000000000c0 x7 : ffff800084025fc4 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000002 x1 : ffff80008b87a760 x0 : ffff800123ca8000 Call trace: __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P) arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P) __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] (P) _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 (P) spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] uart_port_unlock_irqrestore include/linux/serial_core.h:786 [inline] uart_write+0x4b0/0x9b4 drivers/tty/serial/serial_core.c:628 handle_tx+0x200/0x604 drivers/net/caif/caif_serial.c:236 caif_xmit+0x108/0x150 drivers/net/caif/caif_serial.c:282 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x274/0x904 net/core/dev.c:3816 __dev_queue_xmit+0x1680/0x35b4 net/core/dev.c:4652 dev_queue_xmit include/linux/netdevice.h:3313 [inline] tx+0x9c/0x1cc drivers/block/aoe/aoenet.c:62 kthread+0x1ac/0x374 drivers/block/aoe/aoecmd.c:1237 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 4176 Comm: kworker/R-bat_e Not tainted 6.14.0-rc7-syzkaller-gb5737d35364f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: bat_events batadv_tt_purge pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : rcu_lockdep_current_cpu_online+0x0/0x218 kernel/rcu/tree.c:3946 lr : rcu_read_lock_held_common kernel/rcu/update.c:113 [inline] lr : rcu_read_lock_held+0x20/0x50 kernel/rcu/update.c:349 sp : ffff800080006f20 x29: ffff800080006f20 x28: dfff800000000000 x27: 1fffe0001a1a1217 x26: 0000000000000001 x25: ffff0000d0d090cf x24: ffff0000d0d090b8 x23: 0000000000000003 x22: 0000000000000001 x21: 000000000000001e x20: 1fffe0001a1a1219 x19: ffff0000cec3c000 x18: ffff80009bafe080 x17: 0000000000020010 x16: ffff8000832b7b9c x15: 0000000000000005 x14: 1ffff00010000e18 x13: 0000000000000000 x12: ffff700010000e10 x11: 1ffff00010000e7f x10: 0000000000000003 x9 : 0000000000000000 x8 : 0000000100000101 x7 : ffff8000800072d0 x6 : 0000000000000003 x5 : ffff8000800072d0 x4 : ffff8000800072c0 x3 : 0000000000000003 x2 : 000000000000001e x1 : ffff80008bdf7b20 x0 : 0000000000000001 Call trace: rcu_lockdep_current_cpu_online+0x0/0x218 (P) __in6_dev_get include/net/addrconf.h:347 [inline] ip6_ignore_linkdown include/net/addrconf.h:443 [inline] find_match+0xec/0xae8 net/ipv6/route.c:747 __find_rr_leaf+0x238/0x724 net/ipv6/route.c:835 find_rr_leaf net/ipv6/route.c:856 [inline] rt6_select net/ipv6/route.c:900 [inline] fib6_table_lookup+0x36c/0x9c0 net/ipv6/route.c:2195 ip6_pol_route+0x228/0x1314 net/ipv6/route.c:2231 ip6_pol_route_input+0x74/0x94 net/ipv6/route.c:2288 pol_lookup_func include/net/ip6_fib.h:616 [inline] fib6_rule_lookup+0x1f8/0x510 net/ipv6/fib6_rules.c:119 ip6_route_input_lookup net/ipv6/route.c:2300 [inline] ip6_route_input+0x6b8/0xb34 net/ipv6/route.c:2596 ip6_rcv_finish_core+0x218/0x3c8 net/ipv6/ip6_input.c:66 ip6_rcv_finish+0x120/0x21c net/ipv6/ip6_input.c:77 NF_HOOK+0x328/0x3d4 include/linux/netfilter.h:314 ipv6_rcv+0x9c/0xbc net/ipv6/ip6_input.c:309 __netif_receive_skb_one_core net/core/dev.c:5896 [inline] __netif_receive_skb+0x18c/0x3c8 net/core/dev.c:6009 process_backlog+0x640/0x123c net/core/dev.c:6357 __napi_poll+0xb4/0x3fc net/core/dev.c:7191 napi_poll net/core/dev.c:7260 [inline] net_rx_action+0x6a8/0xf4c net/core/dev.c:7382 handle_softirqs+0x320/0xd34 kernel/softirq.c:561 __do_softirq+0x14/0x20 kernel/softirq.c:595 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 do_softirq+0x90/0xf8 kernel/softirq.c:462 __local_bh_enable_ip+0x288/0x44c kernel/softirq.c:389 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] batadv_tt_global_purge net/batman-adv/translation-table.c:2250 [inline] batadv_tt_purge+0x47c/0x92c net/batman-adv/translation-table.c:3510 process_one_work+0x810/0x1638 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] rescuer_thread+0x58c/0xf50 kernel/workqueue.c:3496 kthread+0x65c/0x7b0 kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862