Hello Harry, > http://pastebin.com/AqqJaYVX I checked my log from 11th October last year when this happened to me, and for me it looks like the same error we're hitting: ... Oct 11 11:53:56 node-62 kernel: [219465.151250] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 5488 Oct 11 11:53:56 node-62 kernel: [219465.151261] ABORT_TASK: Found referenced iSCSI task_tag: 5494 Oct 11 11:53:56 node-62 kernel: [219465.151264] ABORT_TASK: ref_tag: 5494 already complete, skipping Oct 11 11:53:56 node-62 kernel: [219465.151267] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 5494 Oct 11 11:53:56 node-62 kernel: [219465.151271] ABORT_TASK: Found referenced iSCSI task_tag: 5495 Oct 11 11:53:56 node-62 kernel: [219465.151273] ABORT_TASK: ref_tag: 5495 already complete, skipping Oct 11 11:53:56 node-62 kernel: [219465.151275] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 5495 Oct 11 11:54:09 node-62 kernel: [219478.744212] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000008 Oct 11 11:54:09 node-62 kernel: [219478.751738] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 5508 Oct 11 11:54:23 node-62 kernel: [219492.351282] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x00000013 Oct 11 11:54:23 node-62 kernel: [219492.358819] ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST for ref_tag: 5514 Oct 11 11:54:23 node-62 kernel: [219492.630489] TARGET_CORE[iSCSI]: Detected NON_EXISTENT_LUN Access for 0x0000001d ... Full log here: https://thomas.glanzmann.de/crash/extracted_crash_dmesg.log I'll try to reproduce it and let the list know when I find something. Harry, can you let me know how many VM's you had running and if they were thin or thick provisioned and if they're idle or they had a heavy workload. In my case I did _not_ use jumbo frames, but 802.3ad bonding. My switches are configured to be able to deliver jumbo frames. Cheers, Thomas -- 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
