BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 4695 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xf88/0x2f44 kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x368 kernel/locking/lockdep.c:5868
 do_write_seqcount_begin_nested include/linux/seqlock.h:478 [inline]
 do_write_seqcount_begin include/linux/seqlock.h:504 [inline]
 psi_write_begin+0x1b0/0x320 kernel/sched/psi.c:183
 psi_account_irqtime+0x1d0/0x420 kernel/sched/psi.c:1030
 __schedule+0x131c/0x2dcc kernel/sched/core.c:7182
 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7370
 preempt_schedule+0x60/0x78 kernel/sched/core.c:7394
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
 _raw_spin_unlock_irqrestore+0x94/0x98 kernel/locking/spinlock.c:198
 stack_depot_save_flags+0x2a0/0x6d8 lib/stackdepot.c:728
 kasan_save_stack mm/kasan/common.c:58 [inline]
 kasan_save_track+0x54/0x78 mm/kasan/common.c:78
 kasan_save_alloc_info+0x44/0x54 mm/kasan/generic.c:570
 unpoison_slab_object mm/kasan/common.c:340 [inline]
 __kasan_slab_alloc+0x70/0x88 mm/kasan/common.c:366
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4570 [inline]
 slab_alloc_node mm/slub.c:4899 [inline]
 kmem_cache_alloc_noprof+0x26c/0x610 mm/slub.c:4906
 kmem_alloc_batch+0x50/0x140 lib/debugobjects.c:371
 fill_pool+0x168/0x3f8 lib/debugobjects.c:420
 debug_objects_fill_pool+0x7c/0x8c lib/debugobjects.c:752
 debug_object_assert_init+0x5c/0x160 lib/debugobjects.c:1030
 debug_timer_assert_init kernel/time/timer.c:803 [inline]
 debug_assert_init kernel/time/timer.c:848 [inline]
 __mod_timer+0x5c/0x8ac kernel/time/timer.c:1025
 mod_timer+0x2c/0x3c kernel/time/timer.c:1195
 sk_reset_timer+0x30/0xe8 net/core/sock.c:3680
 inet_csk_reset_xmit_timer include/net/inet_connection_sock.h:-1 [inline]
 tcp_reset_xmit_timer include/net/tcp.h:1627 [inline]
 tcp_rearm_rto+0x2f8/0x624 net/ipv4/tcp_input.c:3548
 tcp_event_new_data_sent+0x1d0/0x434 net/ipv4/tcp_output.c:105
 tcp_write_xmit+0x1098/0x459c net/ipv4/tcp_output.c:3068
 __tcp_push_pending_frames+0x98/0x314 net/ipv4/tcp_output.c:3244
 tcp_push+0x43c/0x63c net/ipv4/tcp.c:773
 tcp_sendmsg_locked+0x29c8/0x3250 net/ipv4/tcp.c:1415
 tcp_sendmsg+0x40/0x64 net/ipv4/tcp.c:1452
 inet_sendmsg+0xb4/0xd8 net/ipv4/af_inet.c:866
 sock_sendmsg_nosec net/socket.c:787 [inline]
 __sock_sendmsg+0xc8/0x138 net/socket.c:802
 sock_write_iter+0x23c/0x32c net/socket.c:1254
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x52c/0xa14 fs/read_write.c:688
 ksys_write+0x12c/0x224 fs/read_write.c:740
 __do_sys_write fs/read_write.c:751 [inline]
 __se_sys_write fs/read_write.c:748 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:748
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594