How to determine anonymous shared memory region created by memfd_create() syscall from VMcore?

Issue

• How to determine anonymous shared memory region created by memfd_create(2) syscall from VMcore?
• How to determine the shared memory regions created by the "memfd" feature of the Linux kernel from VMcore?
• How to determine which process uses the shared memory regions created by the "memfd" feature of the Linux kernel from VMcore?
• Unable to account for the shared memory usage and the process using the shared memory region from VMcore.

The crash built-in "kmem -i" command shows that the total memory allocated to the shared memory region is 233.5 GB.

crash> kmem -i
                  PAGES        TOTAL      PERCENTAGE
    TOTAL MEM  65960140     251.6 GB         ----
         FREE    154157     602.2 MB    0% of TOTAL MEM
         USED  65805983       251 GB   99% of TOTAL MEM
       SHARED  61220393     233.5 GB   92% of TOTAL MEM
      BUFFERS      7354      28.7 MB    0% of TOTAL MEM
       CACHED  61160804     233.3 GB   92% of TOTAL MEM
         SLAB    298648       1.1 GB    0% of TOTAL MEM

   TOTAL HUGE         0            0         ----
    HUGE FREE         0            0    0% of TOTAL HUGE

   TOTAL SWAP   8388607        32 GB         ----
    SWAP USED   5892394      22.5 GB   70% of TOTAL SWAP
    SWAP FREE   2496213       9.5 GB   29% of TOTAL SWAP

 COMMIT LIMIT  41368677     157.8 GB         ----
    COMMITTED  78532523     299.6 GB  189% of TOTAL LIMIT

The crash built-in "ipcs -m" commands show that the total memory allocated to the shared memory region is 0.68 MiB.

crash> ipcs -m | awk '{ total += $6 } END { printf "Total Shared Memory: %.02f MiB\n", total/2^20 }'
Total Shared Memory: 0.68 MiB

crash> ipcs -m
SHMID_KERNEL     KEY      SHMID      UID     PERMS BYTES      NATTCH STATUS
ffff978ec5a32f40 f9000c46 0          0       600   222        1       
ffff978ecf99b0c0 02002235 1          1000755 666   2048       0       
ffff978ecf99a7c0 01002230 2          1000755 666   18168      0       
ffff978ecf99adc0 02002238 3          1000755 666   2048       0       
ffff978ecf99ac40 02002253 5          1000755 666   2560       0       
ffff978ec639dc00 41002236 7          1000755 666   768        0       
ffff978ec639c040 41002237 18         1000755 666   5376       0       
ffff978ec639c880 4100223a 20         1000755 666   768        0       
ffff978ec639cd00 4100223b 22         1000755 666   768        0       
ffff978ec639ca00 4100223e 23         1000755 666   256        0       
ffff978ec639c640 4100223f 25         1000755 666   768        0       
ffff978ec639d3c0 41002240 28         1000755 666   1280       0       
ffff978ec639c700 41002241 30         1000755 666   768        0       
ffff978ec639c7c0 41002242 31         1000755 666   256        0       
ffff978ec639cb80 41002243 32         1000755 666   256        0       
ffff978ef00304c0 41002239 34         1000755 666   768        0       
ffff978eccf14a00 41002245 37         1000755 666   256        0       
ffff978eccf14340 41002247 38         1000755 666   256        0       
ffff978eccf159c0 41002248 39         1000755 666   256        0       
ffff978eccf14c40 41002249 40         1000755 666   256        0       
ffff978ef0031a80 4100223c 42         1000755 666   768        0       
ffff978eccf15840 4100224a 44         1000755 666   1280       0       
ffff978ef0030700 41002250 45         1000755 666   256        0       
ffff978eccf14ac0 4100224b 47         1000755 666   1280       0       
ffff978eccf15f00 4100224d 51         1000755 666   15236      0       
ffff978eccf15c00 4100224e 52         1000755 666   256        0       
ffff978eccf14dc0 4100224f 53         1000755 666   256        0       
ffff978eccf15000 41002251 54         1000755 666   256        0       
ffff978eccf156c0 41002252 56         1000755 666   768        0       
ffff97634bf6f540 4100224c 59         1000755 666   1792       0       
ffff978ed34bdd80 41002244 60         1000755 666   654460     0