On Wed, 2010-06-30 at 10:28 -0400, Alex wrote: > Hi, > > I'm trying to compile a kernel with aacraid support on a dual Opteron > 246 box with two 36GB disks on a Tyan S2891, using an initrd and lilo. > > There is an older kernel on there that works just fine, so I suspect > it's something I'm missing in the kernel config. No matter what I try, > the kernel fails to find the disks on the controller. I've even tried > building it without an initrd and compiling everything into the > kernel, but it still panics. > > I've included the aacraid support, SCSI disk, SCSI generic, and even > RAID1/5 support. The controller and motherboard also have the latest > BIOS updates. > > What else is necessary to support aacraid? > > It only prints the following when booting: > > Adaptec aacraid driver 1.1-5[2456]-ms That driver comes from a rather old kernel (2.6.29 or before). Could you try with a modern version (which should print 1.1-5[26400]-ms just in case the problem got fixed in the interim. > Is I2O or ACPI support necessary? ACPI may be necessary for the driver to attach its interrupt correctly, but this is a motherboard issue. > Are there any boot-time options to increase debugging output to > troubleshoot this? > > The dmesg output from a working system is here: > > http://pastebin.com/0AnVBV7s This trace shows your system won't configure interrupts correctly without ACPI ... if ACPI isn't working, more than just the aacraid will be non functional. A dmesg of the failing system would be definitive in diagnosing this. James -- 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