Hi. I'm running Ubuntu 13.04 Raring on a Power Edge R515 with Dell H700 controller. I'm using kernel 3.10.12 Its a test platform and I'm driving quite a bit of i/o through it. Under load at times, the megaraid_sas driver will spit out the following error: Sep 24 11:16:17 ubuntu1 kernel: [52243.873844] megasas: Err returned from build_and_issue_cmd Sep 24 11:16:17 ubuntu1 kernel: [52243.933889] megasas: build_ld_io: sge_count = 65 Sep 24 11:16:17 ubuntu1 kernel: [52243.933894] megasas: Err returned from build_and_issue_cmd Sep 24 11:16:17 ubuntu1 kernel: [52243.993934] megasas: build_ld_io: sge_count = 65 Sep 24 11:16:17 ubuntu1 kernel: [52243.993939] megasas: Err returned from build_and_issue_cmd Sep 24 11:16:17 ubuntu1 kernel: [52244.053983] megasas: build_ld_io: sge_count = 65 Sep 24 11:16:17 ubuntu1 kernel: [52244.053988] megasas: Err returned from build_and_issue_cmd Sep 24 11:16:17 ubuntu1 kernel: [52244.104031] megasas: build_ld_io: sge_count = 65 Then the server will hang/crash. This is how the module is loaded into the kernel: root@ubuntu1:/# cat /etc/modprobe.d/megaraid_sas.conf options megaraid_sas max_sectors=2048 I'm planning on upgrading/testing kernel 3.11 or later to see if a driver update resolves things. Has anyone seen this issue before? -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
