watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [kworker/u8:6:252]
Modules linked in:
irq event stamp: 3132002
hardirqs last  enabled at (3132001): [<ffff800089488a90>] seqcount_lockdep_reader_access+0x80/0x104 include/linux/seqlock.h:74
hardirqs last disabled at (3132002): [<ffff80008ada1458>] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline]
hardirqs last disabled at (3132002): [<ffff80008ada1458>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:575
softirqs last  enabled at (3082536): [<ffff80008a64499c>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (3082536): [<ffff80008a64499c>] ieee80211_ibss_work+0x294/0xd50 net/mac80211/ibss.c:1666
softirqs last disabled at (3082534): [<ffff80008a6447c8>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (3082534): [<ffff80008a6447c8>] ieee80211_ibss_work+0xc0/0xd50 net/mac80211/ibss.c:1655
CPU: 0 UID: 0 PID: 252 Comm: kworker/u8:6 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
Workqueue: events_power_efficient gc_worker
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : seqcount_lockdep_reader_access+0xe4/0x104 include/linux/seqlock.h:75
lr : seqcount_lockdep_reader_access+0xe0/0x104 include/linux/seqlock.h:74
sp : ffff80009b917910
x29: ffff80009b917910 x28: ffff80008f309000 x27: 0000000000000000
x26: ffff80008f309000 x25: dfff800000000000 x24: ffff80008f3099c8
x23: ffff0000c5fb9e80 x22: ffff80008f309000 x21: 0000000000000000
x20: ffff80008f3099d0 x19: 00000000000000c0 x18: 1fffe0003670d276
x17: ffff80008f2fe000 x16: ffff800080513940 x15: 0000000000000001
x14: 1ffff00011e61339 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800092d13bc0 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000c5fb9e80 x7 : ffff800089492a34 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000006 x1 : 0000000000000080 x0 : 0000000000000000
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)
 seqcount_lockdep_reader_access+0xe4/0x104 include/linux/seqlock.h:74 (P)
 nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:333 [inline]
 gc_worker+0x2a4/0x1184 net/netfilter/nf_conntrack_core.c:1534
 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3400
 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: 134 Comm: kworker/u8:4 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
Workqueue: events_unbound toggle_allocation_gate
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:340 [inline]
pc : smp_call_function_many_cond+0xe14/0x1308 kernel/smp.c:885
lr : csd_lock_wait kernel/smp.c:340 [inline]
lr : smp_call_function_many_cond+0xe2c/0x1308 kernel/smp.c:885
sp : ffff800098f877b0
x29: ffff800098f87830 x28: 0000000000000011 x27: 0000000000000000
x26: dfff800000000000 x25: ffff80008f301de8 x24: ffff0001b38a38c0
x23: ffffffffffffffff x22: 1fffe00036714718 x21: 1fffe00036714719
x20: ffff0001b3885908 x19: ffff0001b38a38c8 x18: 00000000e9b6b459
x17: dfff800000000000 x16: ffff80008ada5d6c x15: 0000000000000001
x14: 1fffe00036710b21 x13: 0000000000000000 x12: 0000000000000000
x11: ffff600036710b22 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000011 x7 : ffff800080229b1c x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000806697d4
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:231 [inline] (P)
 __cmpwait arch/arm64/include/asm/cmpxchg.h:257 [inline] (P)
 csd_lock_wait kernel/smp.c:340 [inline] (P)
 smp_call_function_many_cond+0xe14/0x1308 kernel/smp.c:885 (P)
 smp_call_function_many kernel/smp.c:909 [inline]
 smp_call_function kernel/smp.c:931 [inline]
 kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1076
 arch_jump_label_transform_apply+0x14/0x20 arch/arm64/kernel/jump_label.c:34
 __jump_label_update+0x30c/0x334 kernel/jump_label.c:521
 jump_label_update+0x3f0/0x484 kernel/jump_label.c:919
 static_key_enable_cpuslocked+0x11c/0x220 kernel/jump_label.c:210
 static_key_enable+0x24/0x38 kernel/jump_label.c:223
 toggle_allocation_gate+0xbc/0x240 mm/kfence/core.c:850
 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3400
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862