Re: dac960 broken ?

Doug Ledford (dledford@redhat.com)
Thu, 29 Nov 2001 01:37:32 -0500


Leonard N. Zubkoff wrote:

> Date: Wed, 28 Nov 2001 15:19:38 +0100 (CET)
> From: Pascal Lengard <pascal.lengard@wanadoo.fr>
>
> Hello,
>
> I have several "servers" using old mylex DAC960P scsi raid adapter.
> So I though clever to install redhat 7.2 on them ...
>
> redhat 7.2 does install and run well with the 2.4.7-10 kernel from the
> distribution, but when I try upgrading to 2.4.9-13 (via rpm) it does not boot,
> there is a problem with resolving ext3fs symbols ... this is more a RedHat
> problem, but read on :-)

Sounds pretty simple to me. If you are using lilo, then you might not
be rerunning lilo after installing the new kernel. Also, after
installing a new kernel you need a new initrd image. Your unresolved
symbols problem is because you are trying to load the ext3 module from a
2.4.7-10 kernel in the 2.4.9-13 errata kernel. The general answer here
is that there is significant documentation on what must be done to
upgrade a Red Hat kernel. Read it.

> I choosed to compile a customized kernel with only what I need inside kernel
> (ext3fs, dac960, ..) plus some modules I might need some day.
>
> I tried compiling 2.4.14 => my mylex card is not detected !
> (driver dac960 version 2.4.11 from 11 october 2001)
> I tried with 2.4.9-13 from redhat => same problem
> (driver dac960 version 2.4.10 from 23 july 2001)
> I tried custom 2.4.7-10 from redhat => works like a charm
> (driver dac960 version 2.4.10 from 1 february 2001)
> all these kernels were compiled with the same .config (make oldconfig)
>
> hardware used:
> DAC960P-2, D040351-0-IBM REV.E firmware 3.51-0-04
>
> detected like this by kernel 2.4.7-10:
> DAC960: ***** DAC960 RAID Driver Version 2.4.10 of 1 February 2001 *****
> DAC960: Copyright 1998-2001 by Leonard N. Zubkoff <lnz@dandelion.com>
> DAC960#0: Configuring Mylex DAC960PD PCI RAID Controller
> DAC960#0: Firmware Version: 3.51-0-04, Channels: 2, Memory Size: 4MB
> DAC960#0: PCI Bus: 1, Device: 10, Function: 0, I/O Address: 0x6200
> DAC960#0: PCI Address: 0xBF800C00 mapped at 0xC482DC00, IRQ Channel: 11
> DAC960#0: Controller Queue Depth: 64, Maximum Blocks per Command: 128
> DAC960#0: Driver Queue Depth: 63, Scatter/Gather Limit: 17 of 17 Segments
> DAC960#0: Stripe Size: 64KB, Segment Size: 8KB, BIOS Geometry: 128/32
>
>
> I am insterested in any clue, since I am stuck to 2.4.7 for now ...
> linux-kernel readers, please cc me on replies since I am not subscribed
> to the list.
>
> Pascal Lengard
>
> Hmmm. Nothing you've described makes any sense to me as I don't believe the
> driver has changed in a way that would break the basic detection of the boards.
> When you say that the card is not detected, precisely what do you mean? Does
> the driver report anything at all?
>
> Leonard
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>

-- 

Doug Ledford <dledford@redhat.com> http://people.redhat.com/dledford Please check my web site for aic7xxx updates/answers before e-mailing me about problems

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