watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [aoe_tx0:2381]
Modules linked in:
irq event stamp: 45511381
hardirqs last  enabled at (45511380): [<ffff80008b9b4a68>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (45511380): [<ffff80008b9b4a68>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (45511381): [<ffff80008b98fd14>] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline]
hardirqs last disabled at (45511381): [<ffff80008b98fd14>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575
softirqs last  enabled at (1168): [<ffff800089a9a128>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1172): [<ffff800089a9a0f4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 0 UID: 0 PID: 2381 Comm: aoe_tx0 Not tainted 6.15.0-rc1-syzkaller-g2fe2b96c3818 #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 : ffff8000a2d17660
x29: ffff8000a2d17660 x28: ffff80008ff41000 x27: 0000000000000000
x26: 0000000000000000 x25: dfff800000000000 x24: 0000000000000000
x23: 0000000000000003 x22: 0000000000000000 x21: ffff800091a4ee80
x20: ffff800097ec8a40 x19: 0000000000000000 x18: 1fffe000366ddab6
x17: 00000000fffffffa x16: ffff8000804829ec x15: 0000000000000001
x14: 1ffff00012fd9148 x13: ffff8000a2d18000 x12: ffff8000a2d17670
x11: ffff8000a2d17690 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : ffff8000840deaa4 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000002 x1 : ffff80008f6d3672 x0 : ffff800123861000
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_room+0x320/0x71c drivers/tty/serial/serial_core.c:649
 tty_write_room+0x6c/0x8c drivers/tty/tty_ioctl.c:69
 handle_tx+0x120/0x604 drivers/net/caif/caif_serial.c:212
 caif_xmit+0x108/0x150 drivers/net/caif/caif_serial.c:268
 __netdev_start_xmit include/linux/netdevice.h:5201 [inline]
 netdev_start_xmit include/linux/netdevice.h:5210 [inline]
 xmit_one net/core/dev.c:3783 [inline]
 dev_hard_start_xmit+0x2c4/0x958 net/core/dev.c:3799
 __dev_queue_xmit+0x1684/0x35b8 net/core/dev.c:4636
 dev_queue_xmit include/linux/netdevice.h:3350 [inline]
 tx+0x9c/0x1cc drivers/block/aoe/aoenet.c:62
 kthread+0x1b0/0x398 drivers/block/aoe/aoecmd.c:1237
 kthread+0x674/0x7dc 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-rc1-syzkaller-g2fe2b96c3818 #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+0xf8/0x128 kernel/sched/idle.c:124
sp : ffff8000982c7d10
x29: ffff8000982c7d10 x28: dfff800000000000 x27: 1ffff00013058fb0
x26: ffff80008ff3e000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011fe7cc9 x22: ffff80008ff3e648 x21: 0000000000000000
x20: ffff0000c1a0db80 x19: ffff80008041ec84 x18: 1fffe000366e22b6
x17: ffff80008ff3e000 x16: ffff80008041e564 x15: 0000000000000001
x14: 1fffe000366e3f68 x13: 0000000000000000 x12: 0000000000000000
x11: ffff6000366e3f69 x10: 0000000000000003 x9 : 0000000000000000
x8 : 000000000005c2bb x7 : ffff8000805d10b8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008b994644
x2 : 0000000000000000 x1 : ffff80008f6d3672 x0 : ffff800123885000
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+0x1ec/0x4e0 kernel/sched/idle.c:325
 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:423
 secondary_start_kernel+0x1bc/0x1e4 arch/arm64/kernel/smp.c:279
 __secondary_switched+0xc0/0xc4 arch/arm64/kernel/head.S:401