APFS Unable to mark physical extent range

I'm experiencing the same warnings on two Areca 56TB RAID volumes converted to APFS. I have no idea if it's related, but I'm also experiencing panic/reboots if I attempt to write a file of any significant size to either of the volumes. Reading files is fine however.

I have exactly the same problem with my Promise Pegasus R6 24To.

When I reboot my Mac the volum is not mounted. I use disk util to check my drive, i have the same error and after that the volum work correctly.

Me too I have converted the disk.

I will make more test of read and write lot of data.

It is a bug with converted big disk with lot of disk space ?

Did you manage to fix this or gathered frther information on this? I am running an Areca array as well and APFS crashes my system when I try to write a file on it.

Agreed - Created a new folder, populated with files. Checked folder size - finder reports 0. Disk

Utility produces lengthy unable to mark physical extent range report:

Repairing file system.

Volume was successfully unmounted.

Performing fsck_apfs -y -x /dev/rdisk10s1

Checking volume.

Checking the container superblock.

Checking the space manager.

Checking the object map.

Checking the APFS volume superblock.

Checking the object map.

Checking the fsroot tree.

Checking the snapshot metadata tree.

Checking the extent ref tree.

warning: object (oid 0x25350375): Unable to mark physical extent range (0x25350375 + 9118) allocated for space verification

warning: object (oid 0x25352713): Unable to mark physical extent range (0x25352713 + 8494) allocated for space verification

warning: object (oid 0x25354841): Unable to mark physical extent range (0x25354841 + 8470) allocated for space verification

warning: object (oid 0x25356957): Unable to mark physical extent range (0x25356957 + 8598) allocated for space verification

warning: object (oid 0x25358aed): Unable to mark physical extent range (0x25358aed + 9058) allocated for space verification

warning: object (oid 0x2535ae4f): Unable to mark physical extent range (0x2535ae4f + 9647) allocated for space verification

warning: object (oid 0x2535d3fe): Unable to mark physical extent range (0x2535d3fe + 8668) allocated for space verification

warning: object (oid 0x2535f5da): Unable to mark physical extent range (0x2535f5da + 8878) allocated for space verification

warning: object (oid 0x25361888): Unable to mark physical extent range (0x25361888 + 8564) allocated for space verification

warning: object (oid 0x253639fc): Unable to mark physical extent range (0x253639fc + 8691) allocated for space verification

warning: object (oid 0x25365bef): Unable to mark physical extent range (0x25365bef + 8684) allocated for space verification

warning: object (oid 0x25367ddb): Unable to mark physical extent range (0x25367ddb + 9456) allocated for space verification

warning: object (oid 0x2536a2cb): Unable to mark physical extent range (0x2536a2cb + 8542) allocated for space verification

warning: object (oid 0x2536c429): Unable to mark physical extent range (0x2536c429 + 8711) allocated for space verification

warning: object (oid 0x2536e630): Unable to mark physical extent range (0x2536e630 + 8696) allocated for space verification

warning: object (oid 0x25370828): Unable to mark physical extent range (0x25370828 + 8469) allocated for space verification

warning: object (oid 0x2537293d): Unable to mark physical extent range (0x2537293d + 10512) allocated for space verification

warning: object (oid 0x2537524d): Unable to mark physical extent range (0x2537524d + 8735) allocated for space verification

warning: object (oid 0x2537746c): Unable to mark physical extent range (0x2537746c + 8469) allocated for space verification

warning: object (oid 0x25379581): Unable to mark physical extent range (0x25379581 + 9282) allocated for space verification

warning: object (oid 0x2537b9c3): Unable to mark physical extent range (0x2537b9c3 + 8577) allocated for space verification

warning: object (oid 0x2537db44): Unable to mark physical extent range (0x2537db44 + 8471) allocated for space verification

warning: object (oid 0x2537fc5b): Unable to mark physical extent range (0x2537fc5b + 9070) allocated for space verification

warning: object (oid 0x25381fc9): Unable to mark physical extent range (0x25381fc9 + 8469) allocated for space verification

warning: object (oid 0x253840de): Unable to mark physical extent range (0x253840de + 8470) allocated for space verification

warning: object (oid 0x253861f4): Unable to mark physical extent range (0x253861f4 + 8471) allocated for space verification

warning: object (oid 0x2538830b): Unable to mark physical extent range (0x2538830b + 8469) allocated for space verification

warning: object (oid 0x2538a420): Unable to mark physical extent range (0x2538a420 + 8469) allocated for space verification

warning: object (oid 0x2538c535): Unable to mark physical extent range (0x2538c535 + 8693) allocated for space verification

warning: object (oid 0x2538e72a): Unable to mark physical extent range (0x2538e72a + 8944) allocated for space verification

warning: object (oid 0x25390a1a): Unable to mark physical extent range (0x25390a1a + 8471) allocated for space verification

warning: object (oid 0x25392b31): Unable to mark physical extent range (0x25392b31 + 9053) allocated for space verification

warning: object (oid 0x25394e8e): Unable to mark physical extent range (0x25394e8e + 8471) allocated for space verification

warning: object (oid 0x25396fa5): Unable to mark physical extent range (0x25396fa5 + 8950) allocated for space verification

warning: object (oid 0x2539929b): Unable to mark physical extent range (0x2539929b + 8470) allocated for space verification

warning: object (oid 0x2539b3b1): Unable to mark physical extent range (0x2539b3b1 + 8795) allocated for space verification

warning: object (oid 0x2539d60c): Unable to mark physical extent range (0x2539d60c + 8468) allocated for space verification

warning: object (oid 0x2539f720): Unable to mark physical extent range (0x2539f720 + 10440) allocated for space verification

warning: object (oid 0x253a1fe8): Unable to mark physical extent range (0x253a1fe8 + 8542) allocated for space verification

warning: object (oid 0x253a4146): Unable to mark physical extent range (0x253a4146 + 8468) allocated for space verification

warning: object (oid 0x253a625a): Unable to mark physical extent range (0x253a625a + 8950) allocated for space verification

warning: object (oid 0x253a8550): Unable to mark physical extent range (0x253a8550 + 8625) allocated for space verification

warning: object (oid 0x253aa701): Unable to mark physical extent range (0x253aa701 + 8470) allocated for space verification

warning: object (oid 0x253ac817): Unable to mark physical extent range (0x253ac817 + 9044) allocated for space verification

warning: object (oid 0x253aeb6b): Unable to mark physical extent range (0x253aeb6b + 8485) allocated for space verification

warning: object (oid 0x253b0c90): Unable to mark physical extent range (0x253b0c90 + 8892) allocated for space verification

warning: object (oid 0x253b2f4c): Unable to mark physical extent range (0x253b2f4c + 8600) allocated for space verification

warning: object (oid 0x253b50e4): Unable to mark physical extent range (0x253b50e4 + 8573) allocated for space verification

warning: object (oid 0x253b7261): Unable to mark physical extent range (0x253b7261 + 8961) allocated for space verification

warning: object (oid 0x253b9562): Unable to mark physical extent range (0x253b9562 + 8854) allocated for space verification

Checking the snapshots.

Verifying allocated space.

The volume /dev/rdisk10s1 appears to be OK.

File system check exit code is 0.

Restoring the original state found as mounted.

Operation successful.