Updated to kernel 4.1.0-rc2 and watching this crash in real time now with ESXi 5.5 (vmkernel.log) and syslog on Ubuntu: May 19 21:00:05 roc-4r-scd212 kernel: [ 5458.521531] libceph: osd22 10.80.3.25:6800 socket closed (con state OPEN) May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742819] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000017 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742912] ABORT_TASK: Found referenced iSCSI task_tag: 60155 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742914] ABORT_TASK: ref_tag: 60155 already complete, skipping May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742916] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 60155 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742919] ABORT_TASK: Found referenced iSCSI task_tag: 60156 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742920] ABORT_TASK: ref_tag: 60156 already complete, skipping May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742922] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 60156 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742924] ABORT_TASK: Found referenced iSCSI task_tag: 60153 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742926] ABORT_TASK: ref_tag: 60153 already complete, skipping May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742927] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 60153 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742928] ABORT_TASK: Found referenced iSCSI task_tag: 60154 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742929] ABORT_TASK: ref_tag: 60154 already complete, skipping May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742931] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 60154 May 19 21:00:32 roc-4r-scd212 kernel: [ 5484.742932] Unexpected ret: -32 send data 48 May 19 21:00:45 roc-4r-scd212 kernel: [ 5498.354391] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000021 May 19 21:00:45 roc-4r-scd212 kernel: [ 5498.354466] Unexpected ret: -32 send data 48 May 19 21:00:59 roc-4r-scd212 kernel: [ 5512.247507] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000035 May 19 21:00:59 roc-4r-scd212 kernel: [ 5512.247650] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000036 May 19 21:00:59 roc-4r-scd212 kernel: [ 5512.247775] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000037 May 19 21:00:59 roc-4r-scd212 kernel: [ 5512.247889] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000038 May 19 21:00:59 roc-4r-scd212 kernel: [ 5512.248002] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000039 May 19 21:00:59 roc-4r-scd212 kernel: [ 5512.248115] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x0000003a May 19 21:00:59 roc-4r-scd212 kernel: [ 5512.248227] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x0000003b 015-05-20T01:02:10.529Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x28 (0x412ec0401580, 32887) to dev "naa.6001405e00d099200000000000000000" on path "vmhba33:C3:T22:L3" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL 2015-05-20T01:02:10.615Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x89 (0x4136c52bbb80, 32889) to dev "naa.6001405a37e54d400000000000000000" on path "vmhba33:C3:T22:L0" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL 2015-05-20T01:02:10.643Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x12 (0x4136c5dc4a40, 0) to dev "naa.60014053de09e2800000000000000000" on path "vmhba33:C3:T22:L5" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL 2015-05-20T01:02:10.657Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x28 (0x412ec03ca100, 32888) to dev "naa.6001405ca6b51d000000000000000000" on path "vmhba33:C3:T22:L1" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL 2015-05-20T01:02:10.672Z cpu4:45156)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.6001405ca6b51d000000000000000000" state in doubt; requested fast path state update... 2015-05-20T01:02:10.672Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x28 (0x412ec0401580, 32887) to dev "naa.6001405e00d099200000000000000000" on path "vmhba33:C3:T22:L3" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL 2015-05-20T01:02:10.672Z cpu4:45156)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.6001405e00d099200000000000000000" state in doubt; requested fast path state update... 2015-05-20T01:02:10.672Z cpu4:45156)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.6001405a37e54d400000000000000000" state in doubt; requested fast path state update... 2015-05-20T01:02:10.672Z cpu4:45156)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "naa.60014053de09e2800000000000000000" state in doubt; requested fast path state update... 2015-05-20T01:02:10.757Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x89 (0x4136c52bbb80, 32889) to dev "naa.6001405a37e54d400000000000000000" on path "vmhba33:C3:T22:L0" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL 2015-05-20T01:02:10.786Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x12 (0x4136c5dc4a40, 0) to dev "naa.60014053de09e2800000000000000000" on path "vmhba33:C3:T22:L5" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL 2015-05-20T01:02:10.800Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x28 (0x412ec03ca100, 32888) to dev "naa.6001405ca6b51d000000000000000000" on path "vmhba33:C3:T22:L1" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL 2015-05-20T01:02:10.815Z cpu4:45156)NMP: nmp_ThrottleLogForDevice:2321: Cmd 0x28 (0x412ec0401580, 32887) to dev "naa.6001405e00d099200000000000000000" on path "vmhba33:C3:T22:L3" Failed: H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Act:EVAL -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html