On Thu, Oct 21, 2010 at 12:08:51PM +0100, Tim Small wrote: > > >Any suggestion on fixing that problem would be welcome. I can send more > >complete logs. > > Looks like a firmware bug - do you have the latest firmware? Drive > firmwares? Anything in the drive error logs (using smartctl)? > > If not, then try opening a bug on the kernel bugzilla - LSI > engineers read that (and sometimes even fix things). > > Otherwise, you could try replacing with a straight SATA contoller, > if that box doesn't have a SAS backplane - I've not been to > impressed by the quality of engineering for LSI contollers, and > SATA-on-SAS in general hasn't been very reliable IMO. Just go for a > well supported SATA controller (e.g. Sil 3132 etc.). Hi Tim and thanks for your feedback. I was eventually able to "fix" the problem. After very carefully running lilo on each disk with "raid-extra-boot=/dev/sdX" (instead of "mbr") I rebooted into my live system with a freshly compliled 2.6.36 and the problem vanished. lilo now runs fine even my "raid-extra-boot=mbr" and several reboots have not triggered any further issue. The firmwares are all to their latest so I guess the mpt2sas kernel driver must have been improved between 2.6.35 and 2.6.36. For info here is part of the 2.6.36 boot log with a few ominous "!!" and one "failure" but with no apparent consequence. Cheers, Oct 21 14:25:47 zenon kernel: mpt2sas version 06.100.00.00 loaded Oct 21 14:25:47 zenon kernel: scsi0 : Fusion MPT SAS Host Oct 21 14:25:47 zenon kernel: mpt2sas 0000:02:00.0: PCI INT A -> GSI 41 (level, low) -> IRQ 41 Oct 21 14:25:47 zenon kernel: mpt2sas0: 64 BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (16426776 kB) Oct 21 14:25:47 zenon kernel: mpt2sas0: IO-APIC enabled: IRQ 41 Oct 21 14:25:47 zenon kernel: mpt2sas0: iomem(0x00000000df2b0000), mapped(0xffffc90000060000), size(65536) Oct 21 14:25:47 zenon kernel: mpt2sas0: ioport(0x000000000000fc00), size(256) Oct 21 14:25:47 zenon kernel: mpt2sas0: sending diag reset !! Oct 21 14:25:47 zenon kernel: mpt2sas0: diag reset: SUCCESS Oct 21 14:25:47 zenon kernel: mpt2sas0: Allocated physical memory: size(1091 kB) Oct 21 14:25:47 zenon kernel: mpt2sas0: Current Controller Queue Depth(467), Max Controller Queue Depth(3439) Oct 21 14:25:47 zenon kernel: mpt2sas0: Scatter Gather Elements per IO(128) Oct 21 14:25:47 zenon kernel: mpt2sas0: LSISAS2008: FWVersion(02.15.63.00), ChipRevision(0x02), BiosVersion(07.01.09.00) Oct 21 14:25:47 zenon kernel: mpt2sas0: Dell PERC H200 Integrated: Vendor(0x1000), Device(0x0072), SSVID(0x1028), SSDID(0x1F1E) Oct 21 14:25:47 zenon kernel: mpt2sas0: Protocol=(Initiator,Target), Capabilities=(Raid,TLR,EEDP,Snapshot Buffer,Diag Trace Buffer,Task Set Full,NCQ) Oct 21 14:25:47 zenon kernel: mpt2sas0: sending port enable !! Oct 21 14:25:47 zenon kernel: mpt2sas0: host_add: handle(0x0001), sas_addr(0x5842b2b05020c600), phys(8) Oct 21 14:25:47 zenon kernel: mpt2sas0: failure at drivers/scsi/mpt2sas/mpt2sas_scsih.c:4546/_scsih_add_device()! Oct 21 14:25:47 zenon kernel: mpt2sas0: port enable: SUCCESS Oct 21 14:25:47 zenon kernel: scsi 0:0:0:0: Direct-Access ATA WDC WD1002FAEX-0 1D05 PQ: 0 ANSI: 5 Oct 21 14:25:47 zenon kernel: scsi 0:0:0:0: SATA: handle(0x0011), sas_addr(0x4433221107000000), phy(7), device_name(0x4ee25001c38204eb) Oct 21 14:25:47 zenon kernel: scsi 0:0:0:0: SATA: enclosure_logical_id(0x5842b2b05020c600), slot(0) Oct 21 14:25:47 zenon kernel: scsi 0:0:0:0: atapi(n), ncq(y), asyn_notify(n), smart(y), fua(y), sw_preserve(y) Oct 21 14:25:47 zenon kernel: scsi 0:0:0:0: qdepth(32), tagged(1), simple(1), ordered(0), scsi_level(6), cmd_que(1) etc.. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
