BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 12380 Comm: syz-executor.5 Not tainted 5.8.0-rc5-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+0x18f/0x20d lib/dump_stack.c:118
 add_chain_cache kernel/locking/lockdep.c:3063 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3162 [inline]
 validate_chain kernel/locking/lockdep.c:3183 [inline]
 __lock_acquire.cold+0x11/0x3f8 kernel/locking/lockdep.c:4380
 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
 __queue_work+0x3b4/0xff0 kernel/workqueue.c:1449
 queue_work_on+0x18b/0x200 kernel/workqueue.c:1518
 drain_all_pages+0x380/0x5f0 mm/page_alloc.c:3031
 __alloc_pages_direct_reclaim mm/page_alloc.c:4258 [inline]
 __alloc_pages_slowpath.constprop.0+0xa2e/0x2780 mm/page_alloc.c:4650
 __alloc_pages_nodemask+0x68f/0x930 mm/page_alloc.c:4863
 __alloc_pages include/linux/gfp.h:509 [inline]
 __alloc_pages_node include/linux/gfp.h:522 [inline]
 alloc_pages_vma+0x564/0x720 mm/mempolicy.c:2236
 do_huge_pmd_anonymous_page+0x3e9/0x2230 mm/huge_memory.c:769
 create_huge_pmd mm/memory.c:4107 [inline]
 __handle_mm_fault mm/memory.c:4328 [inline]
 handle_mm_fault+0x35dd/0x43f0 mm/memory.c:4394
 faultin_page mm/gup.c:887 [inline]
 __get_user_pages+0x733/0x1760 mm/gup.c:1113
 __get_user_pages_locked mm/gup.c:1306 [inline]
 __get_user_pages_remote+0x19f/0x760 mm/gup.c:1857
 pin_user_pages_remote+0x69/0xa0 mm/gup.c:3004
 process_vm_rw_single_vec mm/process_vm_access.c:108 [inline]
 process_vm_rw_core.constprop.0+0x436/0x960 mm/process_vm_access.c:218
 process_vm_rw+0x21a/0x250 mm/process_vm_access.c:286
 __do_sys_process_vm_writev mm/process_vm_access.c:308 [inline]
 __se_sys_process_vm_writev mm/process_vm_access.c:303 [inline]
 __x64_sys_process_vm_writev+0xdf/0x1b0 mm/process_vm_access.c:303
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cba9
Code: Bad RIP value.
RSP: 002b:00007f825c89ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000137
RAX: ffffffffffffffda RBX: 00000000004fd140 RCX: 000000000045cba9
RDX: 000000000000037f RSI: 0000000020000000 RDI: 0000000000000ece
RBP: 000000000078bfa0 R08: 000000000000023a R09: 0000000000000000
R10: 0000000020121000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000008c0 R14: 00000000004cbaa1 R15: 00007f825c89b6d4