BUG: MAX_STACK_TRACE_ENTRIES too low!
turning off the locking correctness validator.
CPU: 0 PID: 16558 Comm: syz-executor.2 Not tainted 5.3.0-rc1+ #76
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+0x172/0x1f0 lib/dump_stack.c:113
 save_trace kernel/locking/lockdep.c:473 [inline]
 save_trace.isra.0.cold+0x14/0x19 kernel/locking/lockdep.c:458
 check_prev_add kernel/locking/lockdep.c:2447 [inline]
 check_prevs_add kernel/locking/lockdep.c:2507 [inline]
 validate_chain kernel/locking/lockdep.c:2897 [inline]
 __lock_acquire+0x2d2a/0x4c30 kernel/locking/lockdep.c:3880
 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4413
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151
 spin_lock include/linux/spinlock.h:338 [inline]
 __mark_inode_dirty+0x58a/0x1390 fs/fs-writeback.c:2191
 __set_page_dirty_buffers+0x367/0x640 fs/buffer.c:648
 set_page_dirty+0x301/0x850 mm/page-writeback.c:2568
 filemap_page_mkwrite+0x258/0x310 mm/filemap.c:2736
 do_page_mkwrite+0xdd/0x490 mm/memory.c:2199
 do_shared_fault mm/memory.c:3545 [inline]
 do_fault mm/memory.c:3613 [inline]
 handle_pte_fault mm/memory.c:3840 [inline]
 __handle_mm_fault+0x2b84/0x3f20 mm/memory.c:3964
 handle_mm_fault+0x1b5/0x6b0 mm/memory.c:4001
 do_user_addr_fault arch/x86/mm/fault.c:1444 [inline]
 __do_page_fault+0x536/0xdd0 arch/x86/mm/fault.c:1509
 do_page_fault+0x38/0x590 arch/x86/mm/fault.c:1533
 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1200
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:205
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4
RSP: 0018:ffff88801b5ffa88 EFLAGS: 00010206
RAX: 0000000000000001 RBX: 00000000000000b8 RCX: 00000000000000b8
RDX: 00000000000000b8 RSI: ffff888009e0e000 RDI: 0000000020001440
RBP: ffff88801b5ffac0 R08: ffffed10013c1c17 R09: 0000000000000007
R10: ffffed10013c1c16 R11: ffff888009e0e0b7 R12: 0000000020001440
R13: ffff888009e0e000 R14: 00000000200014f8 R15: 00007ffffffff000
 copy_page_to_iter_iovec lib/iov_iter.c:211 [inline]
 copy_page_to_iter+0x36e/0xdb0 lib/iov_iter.c:900
 shmem_file_read_iter+0x454/0xbd0 mm/shmem.c:2595
 call_read_iter include/linux/fs.h:1864 [inline]
 new_sync_read+0x4d7/0x800 fs/read_write.c:414
 __vfs_read+0xe1/0x110 fs/read_write.c:427
 vfs_read+0x1f0/0x440 fs/read_write.c:461
 ksys_read+0x14f/0x290 fs/read_write.c:587
 __do_sys_read fs/read_write.c:597 [inline]
 __se_sys_read fs/read_write.c:595 [inline]
 __x64_sys_read+0x73/0xb0 fs/read_write.c:595
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2d917aac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829
RDX: 00000000000000b8 RSI: 0000000020001440 RDI: 0000000000000005
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d917ab6d4
R13: 00000000004c5994 R14: 00000000004dbb48 R15: 00000000ffffffff