Kernel shows "would truncate bmap result" when process issues FIBMAP

Issue

• The following messages are shown.

  ------------[ cut here ]------------
  would truncate bmap result
  WARNING: CPU: 1 PID: 1813834 at fs/iomap/fiemap.c:121 iomap_bmap_actor+0x3e/0x50
  Modules linked in: md4 cmac cifs rdma_cm iw_cm ib_cm ib_core libarc4 dns_resolver d2dctl(OE) sunrpc nls_utf8 isofs loop bmhook
  (OE) tmhook(OE) binfmt_misc sha512_ssse3 sha512_generic nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject 
  nft_ct nf_tables_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink vsock_loopback vmw_vsock_virtio_transport_common
  vmw_vsock_vmci_transport vsock intel_rapl_msr intel_rapl_common isst_if_mbox_msr isst_if_common nfit libnvdimm crct10dif_pclmul crc32_pclmul ghash_clmulni_inte
  l rapl vmw_balloon vfat fat vmw_vmci joydev pcspkr i2c_piix4 ip_tables xfs libcrc32c sr_mod cdrom ata_generic vmwgfx drm_kms_helper syscopyarea sysfillrect sysi
  mgblt fb_sys_fops ttm sd_mod drm t10_pi sg ahci libahci ata_piix libata crc32c_intel vmxnet3 serio_raw vmw_pvscsi dm_mirror dm_region_hash dm_log dm_mod fuse [l
  ast unloaded: tmhook]
  CPU: 1 PID: 1813834 Comm: d2dbackupvol Kdump: loaded Tainted: P           OE    --------- -  - 4.18.0-305.7.1.el8_4.x86_64 #1
  Hardware name: VMware, Inc. VMware7,1/440BX Desktop Reference Platform, BIOS VMW71.00V.18227214.B64.2106252220 06/25/2021
  RIP: 0010:iomap_bmap_actor+0x3e/0x50
  Code: 8f 90 00 00 00 49 2b 70 08 49 03 30 48 d3 ee 48 81 fe ff ff ff 7f 77 06 48 89 30 31 c0 c3 48 c7 c7 6a 84 2e a7 e8 bb 1d 
  d5 ff <0f> 0b 31 c0 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00
  RSP: 0018:ffffb91d9270bd58 EFLAGS: 00010282
  RAX: 0000000000000000 RBX: ffffb91d9270bd80 RCX: 0000000000000007
  RDX: 0000000000000007 RSI: 0000000000000086 RDI: ffff8c2c7f8567c0
  RBP: 0000000000000000 R08: 000000000000065e R09: 0000000000000004
  R10: 0000000000000000 R11: 0000000000000001 R12: ffff8c23c2c04548
  R13: 0000000000001000 R14: ffffffffc0655a60 R15: 0000000000000000
  FS:  00007fa62a41f280(0000) GS:ffff8c2c7f840000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007fff8178db68 CR3: 0000000fca998001 CR4: 0000000000770ee0
  PKRU: 55555554
  Call Trace:
  iomap_apply+0xfb/0x330
  ? iomap_fiemap_actor+0xa0/0xa0
  ? __filemap_fdatawait_range+0x6d/0xe0
  iomap_bmap+0x68/0x80
  ? iomap_fiemap_actor+0xa0/0xa0
  do_vfs_ioctl+0x5a2/0x680
  ? handle_mm_fault+0xc2/0x1d0
  ? syscall_trace_enter+0x1d3/0x2c0
  ksys_ioctl+0x60/0x90
  __x64_sys_ioctl+0x16/0x20
  do_syscall_64+0x5b/0x1a0
  entry_SYSCALL_64_after_hwframe+0x65/0xca
  RIP: 0033:0x7fa628e5762b
  Code: 0f 1e fa 48 8b 05 5d b8 2c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2d b8 2c 00 f7 d8 64 89 01 48
  RSP: 002b:00007fff81792d28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
  RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa628e5762b
  RDX: 00007fff81792d50 RSI: 0000000000000001 RDI: 000000000000000a
  RBP: 00005574ab1fa2e0 R08: 000000000000025b R09: 0000000000000003
  R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000008000
  R13: 00005574ab249220 R14: 000000000000000a R15: 0000000000000000
  ---[ end trace ec44e66ed49e81b0 ]---