Filled a bugzilla entry, no answer for 3 days, and at same time it is clear regression. http://bugzilla.kernel.org/show_bug.cgi?id=14242 While on 2.6.30.5 MPT SAS controller worked fine, on 2.6.31 it fails on heavy operations and start spitting errors to dmesg (they vary). Failsystems also stopped, and i am unable to reboot box properly (only over sysrq or hardreset). x86, Sun Fire X4100, 8 GB RAM, PAE kernel enabled, module loaded with default options I upgrade BIOS, LSI controller BIOS to latest version, it didn't fix the bug. I cannot do bisection, because this is loaded server and semi-embedded system. But i can do tests of patches or reverse specific commits, if you point me to exact commit. http://www.nuclearcat.com/files/dmesg.ok from 2.6.30.5 kernel http://www.nuclearcat.com/files/dmesg.fail from 2.6.31.1 kernel http://www.nuclearcat.com/files/config.gz config from 2.6.31.1 kernel Let me know if you need any additional information. Additionally - i have few other similar units (X4100), but with less amount of RAM (4GB),HDD's(2 only), less load (but still enough heavy at some moments) working ok. I dont think it is hardware issue, since it works on 2.6.30 very stable, and worked on other (older) kernels for 1 year and more. It is clear regression and i guess dangerous regression (causing data loss on high loads). I will try to bisect some changes on mpt driver today. Please CC me on answers, i am not subscribed at any SCSI/LSI list. Crossposting to linux-kernel, since there is no mails about issue from linux-scsi. Here is some technical info about controller over lsiutil Current active firmware version is 01102800 (1.16.40) Firmware image's version is MPTFW-01.16.40.00-IE LSI Logic x86 BIOS image's version is MPTBIOS-6.14.04.00 (2007.02.27) SAS1064's links are 3.0 G, 3.0 G, 3.0 G, 3.0 G B___T SASAddress PhyNum Handle Parent Type 50003ba0000003ba 0001 SAS Initiator 50003ba0000003bb 0002 SAS Initiator 50003ba0000003bc 0003 SAS Initiator 50003ba0000003bd 0004 SAS Initiator 0 0 500000e01277abd2 0 0005 0001 SAS Target 0 1 500000e011e3b602 1 0006 0001 SAS Target 0 2 500000e012779792 2 0007 0001 SAS Target 0 3 500000e0120efb42 3 0008 0001 SAS Target Type NumPhys PhyNum Handle PhyNum Handle Port Speed Adapter 4 0 0001 --> 0 0005 0 3.0 1 0001 --> 0 0006 1 3.0 2 0001 --> 0 0007 2 3.0 3 0001 --> 0 0008 3 3.0 Enclosure Handle Slots SASAddress B___T (SEP) 0001 4 50003ba0000003ba -- 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
