James Bottomley wrote:
On Wed, 2009-09-16 at 09:18 -0700, Eddie wrote:
I've done a quick search of the archives, and didn't find anything
relevant, or I missed it. :(
I've just installed the latest Slackware release, 13.0, in 64-bit mode,
that uses kernel 2.6.29.6. Previously, I was running 12.2, in 32-bit,
which used kernel 2.6.27.31. After booting, I noticed that the drives
on the raid had not been mounted. Checking through dmesg, I noticed
that the "drive" attached to the card had not been correctly
recognised. Here's the relevant messages, about the card, and the
drive, from dmesg:
megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)
megaraid: 2.20.5.1 (Release Date: Thu Nov 16 15:32:35 EST 2006)
megaraid: probe new device 0x101e:0x1960:0x101e:0x0511: bus 1:slot 4:func 0
megaraid 0000:01:04.0: PCI INT A -> Link[LNK1] -> GSI 19 (level, high)
-> IRQ 19
megaraid: fw version:[N661] bios version:[1.01]
scsi4 : LSI Logic MegaRAID driver
scsi[4]: scanning scsi channel 0 [Phy 0] for non-raid devices
scsi[4]: scanning scsi channel 1 [Phy 1] for non-raid devices
scsi[4]: scanning scsi channel 2 [Phy 2] for non-raid devices
scsi[4]: scanning scsi channel 3 [Phy 3] for non-raid devices
scsi[4]: scanning scsi channel 4 [virtual] for logical drives
scsi scan: INQUIRY result too short (5), using 36
scsi 4:4:0:0: Direct-Access PQ: 0 ANSI: 0
sd 4:4:0:0: [sda] Sector size 0 reported, assuming 512.
sd 4:4:0:0: [sda] 1 512-byte hardware sectors: (512 B/512 B)
sd 4:4:0:0: [sda] Write Protect is off
sd 4:4:0:0: [sda] Mode Sense: 00 00 00 00
sd 4:4:0:0: [sda] Asking for cache data failed
sd 4:4:0:0: [sda] Assuming drive cache: write through
sd 4:4:0:0: [sda] Sector size 0 reported, assuming 512.
sd 4:4:0:0: [sda] 1 512-byte hardware sectors: (512 B/512 B)
sd 4:4:0:0: [sda] Write Protect is off
sd 4:4:0:0: [sda] Mode Sense: 00 00 00 00
sd 4:4:0:0: [sda] Asking for cache data failed
sd 4:4:0:0: [sda] Assuming drive cache: write through
sda: unknown partition table
sd 4:4:0:0: [sda] Attached SCSI disk
sd 4:4:0:0: Attached scsi generic sg1 type 0
Obviously, it's this "scsi scan: INQUIRY result too short (5), using
36", causing the drive not to be correctly recognised. Normally, I'd
expect to get:
scsi 4:4:0:0: Direct-Access MegaRAID LD 0 RAID5 1430G N661 PQ: 0 ANSI: 2
sd 4:4:0:0: [sda] 2930307072 512-byte hardware sectors (1500317 MB)
In order to eliminate either the change in kernel version, or the change
in architecture, as the culprit, I booted the machine, from both the
32-bit, and 64-bit, DVDs from Slack. With the 32-bit kernel, the drive
was correctly recognised, but not with the 64-bit. So, it's definitely
the change in architecture causing this, not the change in kernel version.
The full dmesg can be found here: ftp.BogoLinux.net/pub together with
the dmesg from the 32-bit system, with kernel 2.6.27.31.
How much memory does your system have?
Best guess in the 64 bit case is that the physical memory the kernel is
doing DMA to isn't within the range of the card. You might be able to
test this by booting with the max_addr=4G parameter in the 64 bit case.
If it is, we'll have to get the DMA mask for this thing set up
correctly.
James
James,
It's got 8Gig.
I'll try your suggestion tonight, when I get home.
Cheers,
Eddie
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