On Sat, Jul 3, 2010 at 9:01 AM, Tejun Heo <tj@xxxxxxxxxx> wrote: > (cc'ing linux-ide) > > On 07/02/2010 07:56 PM, Mark Knecht wrote: >> Hi, >> I have a newish machine - maybe 3 months old - which unreliably >> finds its disk drives at each boot. Probably 40% of the time booting 1 >> or more drives will be missing. >> >> So far I've been unable to determine what might be wrong. Sometimes >> it finds all 5 drives, sometimes only 4 or 3 drives. It's not always >> the same drives that are missing. Shown below are two successive warm >> boots. The machien had been running with all 5 drives working. The >> first time through it missed both /dev/sdd and /dev/sde while the very >> next time it found all 5 drives. Each of the 5 drives has been missing >> one or more times at different boots. (I.e. - it's not always drive >> sdd for instance.) >> >> Every time I boot the AMI BIOS screen says all 5 drives are there. >> I have found that if I drop into BIOS before going to grub that >> selecting each drive one at a time and reading through it's setup >> seems to make the boot more reliable, but not 100%. Probably 80% >> reliable. >> >> I don't know what info is required to look at this. I'm running the >> newest Gentoo kernel but it's been happening with all kernels I've >> tried since I built the machine. I'm attaching the kernel config as >> well as dmesg from the last boot which had all the drives. The only >> difference in dmesg when the drives don't show up (that I've spotted) >> is that the missing drive just isn't in dmesg. (I.e. no error messages >> that I could spot.) >> >> Let me know what I might try or what other info you might want. The >> motherboard is an Asus Rampage II Extreme with an i7-980x 6 core/12 >> thread processor. sda, sdb & sdc are part of a RAID1, sdd & sde are >> part of a RAID0. > > Can you please *attach* full logs of a successful boot and several > failing boots? > > Thanks. > > -- > tejun > Certainly? Which logs? dmesg or something else? Thanks, Mark -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
