Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 #194
Description
Hi,
I have enabled a FILIO backing store and I have mounted it from a Win2016 Server. I do get lots of output in dmesg when doing something heavy like a chkdsk -r (surface scan). Are these messages harmless or do they indicate a problem that I need to sort out?
There are no errors reported in Windows, and as far as I can tell the storage works fine with no corruptions.
# System
OS: Alpine Linux 3.16
Kernel: 5.15.57
Targetcli: 2.1.54-r1
# dmesg
[65095.963669] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65095.964074] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65095.985581] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 950272 for SAM Opcode: 0x2f
[65100.964521] target_cmd_size_check: 11557 callbacks suppressed
[65100.964523] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65100.964979] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65100.965386] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 950272 for SAM Opcode: 0x2f
[65100.965783] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65100.966176] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65100.966543] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65100.966981] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 950272 for SAM Opcode: 0x2f
[65100.967355] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65100.967699] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65100.968045] TARGET_CORE[iSCSI]: Expected Transfer Length: 0 does not match SCSI CDB Length: 1048576 for SAM Opcode: 0x2f
[65105.968019] target_cmd_size_check: 11718 callbacks suppressed
...
snip, continues a lot
....
# saveconfig.json
{
"fabric_modules": [],
"storage_objects": [
{
"aio": false,
"alua_tpgs": [
{
"alua_access_state": 0,
"alua_access_status": 0,
"alua_access_type": 3,
"alua_support_active_nonoptimized": 1,
"alua_support_active_optimized": 1,
"alua_support_offline": 1,
"alua_support_standby": 1,
"alua_support_transitioning": 1,
"alua_support_unavailable": 1,
"alua_write_metadata": 0,
"implicit_trans_secs": 0,
"name": "default_tg_pt_gp",
"nonop_delay_msecs": 100,
"preferred": 0,
"tg_pt_gp_id": 0,
"trans_delay_msecs": 0
}
],
"attributes": {
"alua_support": 1,
"block_size": 4096,
"emulate_3pc": 1,
"emulate_caw": 1,
"emulate_dpo": 1,
"emulate_fua_read": 1,
"emulate_fua_write": 1,
"emulate_model_alias": 1,
"emulate_pr": 1,
"emulate_rest_reord": 0,
"emulate_tas": 1,
"emulate_tpu": 1,
"emulate_tpws": 1,
"emulate_ua_intlck_ctrl": 0,
"emulate_write_cache": 1,
"enforce_pr_isids": 1,
"force_pr_aptpl": 0,
"is_nonrot": 0,
"max_unmap_block_desc_count": 1,
"max_unmap_lba_count": 8192,
"max_write_same_len": 4096,
"optimal_sectors": 2048,
"pgr_support": 1,
"pi_prot_format": 0,
"pi_prot_type": 0,
"pi_prot_verify": 0,
"queue_depth": 128,
"unmap_granularity": 1,
"unmap_granularity_alignment": 0,
"unmap_zeroes_data": 0
},
"dev": "/media/iscsi-tgt/media_1.bin",
"name": "media_1",
"plugin": "fileio",
"size": 858993459200,
"write_back": true,
"wwn": "d28ec22e-f29e-4c96-9019-0204730c538b"
},
{
"aio": false,
"alua_tpgs": [
{
"alua_access_state": 0,
"alua_access_status": 0,
"alua_access_type": 3,
"alua_support_active_nonoptimized": 1,
"alua_support_active_optimized": 1,
"alua_support_offline": 1,
"alua_support_standby": 1,
"alua_support_transitioning": 1,
"alua_support_unavailable": 1,
"alua_write_metadata": 0,
"implicit_trans_secs": 0,
"name": "default_tg_pt_gp",
"nonop_delay_msecs": 100,
"preferred": 0,
"tg_pt_gp_id": 0,
"trans_delay_msecs": 0
}
],
"attributes": {
"alua_support": 1,
"block_size": 4096,
"emulate_3pc": 1,
"emulate_caw": 1,
"emulate_dpo": 1,
"emulate_fua_read": 1,
"emulate_fua_write": 1,
"emulate_model_alias": 1,
"emulate_pr": 1,
"emulate_rest_reord": 0,
"emulate_tas": 1,
"emulate_tpu": 1,
"emulate_tpws": 1,
"emulate_ua_intlck_ctrl": 0,
"emulate_write_cache": 1,
"enforce_pr_isids": 1,
"force_pr_aptpl": 0,
"is_nonrot": 1,
"max_unmap_block_desc_count": 1,
"max_unmap_lba_count": 8192,
"max_write_same_len": 4096,
"optimal_sectors": 2048,
"pgr_support": 1,
"pi_prot_format": 0,
"pi_prot_type": 0,
"pi_prot_verify": 0,
"queue_depth": 128,
"unmap_granularity": 1,
"unmap_granularity_alignment": 0,
"unmap_zeroes_data": 0
},
"dev": "/media/iscsi-tgt/dep_1.bin",
"name": "dep_1",
"plugin": "fileio",
"size": 966367641600,
"write_back": true,
"wwn": "a844aa27-dd49-4025-9ae0-20f85557ab32"
}
],
"targets": [
{
"fabric": "iscsi",
"parameters": {
"cmd_completion_affinity": "-1"
},
"tpgs": [
{
"attributes": {
"authentication": 0,
"cache_dynamic_acls": 0,
"default_cmdsn_depth": 64,
"default_erl": 2,
"demo_mode_discovery": 1,
"demo_mode_write_protect": 1,
"fabric_prot_type": 0,
"generate_node_acls": 0,
"login_keys_workaround": 1,
"login_timeout": 15,
"netif_timeout": 2,
"prod_mode_write_protect": 0,
"t10_pi": 1,
"tpg_enabled_sendtargets": 1
},
"enable": true,
"luns": [
{
"alias": "8f17e89b4f",
"alua_tg_pt_gp_name": "default_tg_pt_gp",
"index": 0,
"storage_object": "/backstores/fileio/dep_1"
},
{
"alias": "a5a9f51905",
"alua_tg_pt_gp_name": "default_tg_pt_gp",
"index": 1,
"storage_object": "/backstores/fileio/media_1"
}
],
"node_acls": [
{
"attributes": {
"dataout_timeout": 5,
"dataout_timeout_retries": 5,
"default_erl": 2,
"nopin_response_timeout": 30,
"nopin_timeout": 15,
"random_datain_pdu_offsets": 0,
"random_datain_seq_offsets": 0,
"random_r2t_offsets": 0
},
"mapped_luns": [
{
"alias": "8c4e02bd30",
"index": 1,
"tpg_lun": 1,
"write_protect": false
},
{
"alias": "360e15af50",
"index": 0,
"tpg_lun": 0,
"write_protect": false
}
],
"node_wwn": "iqn.1991-05.com.microsoft:srv01"
}
],
"parameters": {
"AuthMethod": "CHAP,None",
"DataDigest": "CRC32C",
"DataPDUInOrder": "Yes",
"DataSequenceInOrder": "Yes",
"DefaultTime2Retain": "20",
"DefaultTime2Wait": "2",
"ErrorRecoveryLevel": "0",
"FirstBurstLength": "65536",
"HeaderDigest": "CRC32C",
"IFMarkInt": "Reject",
"IFMarker": "No",
"ImmediateData": "Yes",
"InitialR2T": "Yes",
"MaxBurstLength": "262144",
"MaxConnections": "1",
"MaxOutstandingR2T": "1",
"MaxRecvDataSegmentLength": "8192",
"MaxXmitDataSegmentLength": "262144",
"OFMarkInt": "Reject",
"OFMarker": "No",
"TargetAlias": "LIO Target"
},
"portals": [
{
"ip_address": "0.0.0.0",
"iser": false,
"offload": false,
"port": 3260
}
],
"tag": 1
}
],
"wwn": "iqn.2022-02.com.xxxxxx:srv01"
}
]
}