watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [aoe_tx0:2391]
Modules linked in:
irq event stamp: 28020825
hardirqs last  enabled at (28020824): [<ffff80008adc6794>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (28020824): [<ffff80008adc6794>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (28020825): [<ffff80008ada1458>] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline]
hardirqs last disabled at (28020825): [<ffff80008ada1458>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:575
softirqs last  enabled at (1930): [<ffff8000890b1d60>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1934): [<ffff8000890b1d2c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 0 UID: 0 PID: 2391 Comm: aoe_tx0 Not tainted 6.15.0-rc4-syzkaller-00028-ge0f4c8dd9d2d #0 PREEMPT 
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 : ffff8000a15976e0
x29: ffff8000a15976e0 x28: dfff800000000000 x27: ffff0000c78ba470
x26: 0000000000000000 x25: ffff80008f301000 x24: ffff0000c9330f48
x23: 0000000000000003 x22: 0000000000000000 x21: ffff800090e25520
x20: ffff8000972b3a80 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff800092f13000 x16: ffff800080513940 x15: 0000000000000001
x14: 1ffff00012e56750 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800092d13bc0 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : ffff800083cc7ed0 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000002 x1 : ffff80008e8ed79e x0 : ffff80012461c000
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+0x464/0x938 drivers/tty/serial/serial_core.c:628
 handle_tx+0x200/0x5fc drivers/net/caif/caif_serial.c:222
 caif_xmit+0x108/0x150 drivers/net/caif/caif_serial.c:268
 __netdev_start_xmit include/linux/netdevice.h:5203 [inline]
 netdev_start_xmit include/linux/netdevice.h:5212 [inline]
 xmit_one net/core/dev.c:3776 [inline]
 dev_hard_start_xmit+0x2b0/0x8ac net/core/dev.c:3792
 __dev_queue_xmit+0x15a4/0x31f0 net/core/dev.c:4629
 dev_queue_xmit include/linux/netdevice.h:3350 [inline]
 tx+0x9c/0x1cc drivers/block/aoe/aoenet.c:62
 kthread+0x164/0x354 drivers/block/aoe/aoecmd.c:1237
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.15.0-rc4-syzkaller-00028-ge0f4c8dd9d2d #0 PREEMPT 
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 : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:50
lr : default_idle_call+0xd0/0xfc kernel/sched/idle.c:124
sp : ffff8000976b7d40
x29: ffff8000976b7d40 x28: 0000000000000002 x27: dfff800000000000
x26: 1ffff00012ed6fb0 x25: 0000000000000000 x24: 0000000000000000
x23: 1fffe00018341b70 x22: ffff80008f2fe648 x21: 1ffff00011e5fcc9
x20: 0000000000000000 x19: ffff8000804b4ff4 x18: 1fffe00036711a76
x17: ffff80008f2fe000 x16: ffff8000804b4954 x15: 0000000000000001
x14: 1fffe00036713728 x13: 0000000000000000 x12: 0000000000000000
x11: ffff600036713729 x10: 0000000000000003 x9 : 0000000000000000
x8 : 0000000000081881 x7 : ffff800080643f70 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008ada57d0
x2 : 0000000000000000 x1 : ffff80008e8ed79e x0 : ffff800124640000
Call trace:
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P)
 arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:48 (P)
 cpuidle_idle_call kernel/sched/idle.c:185 [inline]
 do_idle+0x1d8/0x454 kernel/sched/idle.c:325
 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:423
 secondary_start_kernel+0x1b8/0x1e0 arch/arm64/kernel/smp.c:279
 __secondary_switched+0xc0/0xc4 arch/arm64/kernel/head.S:401