Re: DPT2044W SCSI adaptor with disk installed but no /dev/sd* devices created

[Arthur Marsh <arthur.marsh@internode.on.net>]

lee wrote, on 2008-11-28 04:19:

> > I've tried a kernel recompile from linux-source-2.6.27 and experienced  
> > the same problems.
> >
> > I get a kernel stack trace that ends in:
> >
> > note: scsi_scan0 [240] exited with preempt_count 1
>
> Did you compile eata into the kernel or as a module?

compiled into the kernel.

> > and the machine locks up after the line:
> >
> > clock source tsc unstable
>
> http://www.google.com/search?hl=en&sa=X&oi=spell&resnum=1&ct=result&cd=1&q=%22clocksource+tsc+unstable%22&spell=1
> http://kerneltrap.org/node/8306
> http://lkml.indiana.edu/hypermail/linux/kernel/0707.1/0621.html

nothing much there, but thanks for the links.

> > Any suggestions?
>
> No good ones ... You could put the SCSI controller into another slot
> and see what happens then --- I've had some SCSI controllers that
> won't work in one slot but in another, and I've seen network cards
> working just fine in one board but not in another.
>
> You could try older kernels.

Yes, I'll try 2.6.18 (2.6.18.dfsg.1-12etch2 is the earliest Debian 2.6 
kernel I can get hold of from my current archives)

> http://grox.net/doc/linux/howto-OLD-VERSIONS/Module-HOWTO-html/Module-HOWTO-6.html
> http://ubuntuforums.org/showthread.php?t=472253
> https://bugs.launchpad.net/ubuntu/+bug/120426
> http://www.google.com/search?hl=en&q=modprobe+eata&btnG=Search

The sysrescuecd 0.30 beta that found the SCSI controller and hard disk 
identified its kernel version as:

Linux sysrescuecd 2.6.18.3-fd01 #1 Tue Dec 5 11:20:14 UTC 2006 i686 
Pentium II (Klamath) GenuineIntel GNU/Linux

SCSI-related lines from the dmesg output of the sysrescuecd were:

SCSI subsystem initialized
Loading iSCSI transport class v1.1-646.Loading Adaptec I2O RAID: Version 
2.4 Build 5go
scsi: <fdomain> Detection failed (no card)
Emulex LightPulse Fibre Channel SCSI driver 8.1.9
Failed initialization of WD-7000 SCSI card!
EATA0: wide SCSI support enabled, max_id 16, max_lun 8.
EATA0: SCSI channel 0 enabled, host target ID 7.
scsi2 : EATA/DMA 2.0x rev. 8.10.00
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi 2:0:6:0: cmds/lun 16, unsorted, no tags.
ipr: IBM Power RAID SCSI Device Driver version: 2.1.3 (March 29, 2006)
SCSI device sda: 8466688 512-byte hdwr sectors (4335 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 8466688 512-byte hdwr sectors (4335 MB)
SCSI device sda: drive cache: write back
sd 2:0:6:0: Attached scsi disk sda
sd 2:0:6:0: Attached scsi generic sg0 type 0

The current eata.c from 2.6.27 source on kernel-archive.buildserver.net has:

eata.c: .name = "EATA/DMA 2.0x rev. 8.10.00 "

so it appears that the eata.c file hasn't changed significantly since 
the working eata code built-in to the sysrescuecd kernel.

I'll download the 2.6.18.dfsg.1-12etch2 kernel and try it.

Arthur.