BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 20680 Comm: syz-executor.1 Not tainted 5.6.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 add_chain_cache kernel/locking/lockdep.c:2840 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:2914 [inline]
 validate_chain kernel/locking/lockdep.c:2935 [inline]
 __lock_acquire.cold+0x263/0x288 kernel/locking/lockdep.c:3954
 lock_acquire+0x197/0x420 kernel/locking/lockdep.c:4484
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
 update_cfs_rq_load_avg kernel/sched/fair.c:3485 [inline]
 update_load_avg+0xd06/0x1b40 kernel/sched/fair.c:3605
 enqueue_entity+0xbe/0x16e0 kernel/sched/fair.c:4023
 enqueue_task_fair+0x19f/0x11c0 kernel/sched/fair.c:5259
 enqueue_task kernel/sched/core.c:1307 [inline]
 activate_task+0x10d/0x470 kernel/sched/core.c:1329
 ttwu_do_activate+0xca/0x130 kernel/sched/core.c:2260
 ttwu_queue kernel/sched/core.c:2405 [inline]
 try_to_wake_up+0xace/0x17c0 kernel/sched/core.c:2639
 autoremove_wake_function+0x12/0x140 kernel/sched/wait.c:389
 wake_page_function+0x176/0x1c0 mm/filemap.c:1030
 __wake_up_common+0x147/0x650 kernel/sched/wait.c:93
 wake_up_page_bit+0x11b/0x320 mm/filemap.c:1050
 unlock_page+0x197/0x2a0 mm/filemap.c:1295
 generic_write_end+0x107/0x3d0 fs/buffer.c:2187
 ext4_da_write_end+0x217/0xbd0 fs/ext4/inode.c:3092
 generic_perform_write+0x2c0/0x4e0 mm/filemap.c:3298
 ext4_buffered_write_iter+0x1f7/0x450 fs/ext4/file.c:270
 ext4_dio_write_iter fs/ext4/file.c:549 [inline]
 ext4_file_write_iter+0xc28/0x13f0 fs/ext4/file.c:640
 call_write_iter include/linux/fs.h:1902 [inline]
 new_sync_write+0x49c/0x700 fs/read_write.c:483
 __vfs_write+0xc9/0x100 fs/read_write.c:496
 vfs_write+0x262/0x5c0 fs/read_write.c:558
 ksys_write+0x127/0x250 fs/read_write.c:611
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c849
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2397558c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f23975596d4 RCX: 000000000045c849
RDX: 0000000000043400 RSI: 0000000020000200 RDI: 0000000000000006
RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000ce1 R14: 00000000004cf05a R15: 000000000076bfac