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IBM RS/6000 7025-F50 - ServeRaid (IPS) linux driver failure
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bozy@pisem.net
*nix forums beginner


Joined: 16 May 2006
Posts: 9

PostPosted: Mon Jun 19, 2006 2:43 pm    Post subject: Re: IBM RS/6000 7025-F50 - ServeRaid (IPS) linux driver failure Reply with quote
On Mon, 19 Jun 2006 14:37:09 +0200, Michele Lamarca <lammic@gmail.com> wrote:

Quote:
AlexB ha scritto:
Good day.

Did anyone succeed to make linux IPS driver work for IBM Ultra3 4-channel RAID
adapter? I've got one of these in my 7025-F50 and it works fine in AIX 5.3, but
when I boot Red Hat FC5-ppc, driver load fails. When booting from rescue or
install CD, I have got a long delay when loading ips.ko, and then kernel bug
message displayed, something like this:

Hi Alex,
I've got the same controller on a pSeries 620, model 7025-6F1. The
controller is working fine under AIX, but nope for Linux.

According to IBM the ServeRAID controllers are supported only on x86. In
fact with kernel 2.4.32, you can compile it ONLY for x86 architecture.

When I boot installed FC5 system (with all updates applied via 'yum'), kernel
does not attempt to load IPS driver. When modprob-ing by hand, it complains
about inability to allocate 256 bytes of IO memory. Quite a pity, as I've got

Something like this?

kernel: PCI: Enabling device 2a:01.0 (0140 -> 0143)
kernel: ips 2a:01.0:Unable to initialize controller
kernel: ips 2a:01.0:Couldn't allocate IO space 291c00 len 256.

Maybe the driver needs just some initialization code specific for PowerPC.

Regards,
Michele

Good day, Michele.

I started suspecting this, as I have tried almost any linux distribution for PPC
platform available and googled through about the issue with absolutely nothing
found. Latest Debian 3.1r2 release with kernel 2.6.8 exhibits exactly same
behavious, so does OpenSUSE 10.1. Kernel 2.4.27 from Debian gets stuck somewhere
in the middle, so 2.6 is still the best guess. There is another driver/set of
utilities in linux kernels called 'iprtools' for 'IBM PowerRAID' adapters, so I
will start looking at one of those hardware options, maybe refurbished ones are
available for a sensible cost.. Thanks for prompt reply!

Alex
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Michele Lamarca
*nix forums beginner


Joined: 16 Jan 2006
Posts: 2

PostPosted: Mon Jun 19, 2006 12:37 pm    Post subject: Re: IBM RS/6000 7025-F50 - ServeRaid (IPS) linux driver failure Reply with quote
AlexB ha scritto:
Quote:
Good day.

Did anyone succeed to make linux IPS driver work for IBM Ultra3 4-channel RAID
adapter? I've got one of these in my 7025-F50 and it works fine in AIX 5.3, but
when I boot Red Hat FC5-ppc, driver load fails. When booting from rescue or
install CD, I have got a long delay when loading ips.ko, and then kernel bug
message displayed, something like this:

Hi Alex,
I've got the same controller on a pSeries 620, model 7025-6F1. The
controller is working fine under AIX, but nope for Linux.

According to IBM the ServeRAID controllers are supported only on x86. In
fact with kernel 2.4.32, you can compile it ONLY for x86 architecture.

Quote:
When I boot installed FC5 system (with all updates applied via 'yum'), kernel
does not attempt to load IPS driver. When modprob-ing by hand, it complains
about inability to allocate 256 bytes of IO memory. Quite a pity, as I've got

Something like this?

kernel: PCI: Enabling device 2a:01.0 (0140 -> 0143)
kernel: ips 2a:01.0:Unable to initialize controller
kernel: ips 2a:01.0:Couldn't allocate IO space 291c00 len 256.

Maybe the driver needs just some initialization code specific for PowerPC.

Regards,
Michele
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bozy@pisem.net
*nix forums beginner


Joined: 16 May 2006
Posts: 9

PostPosted: Fri Jun 16, 2006 1:39 pm    Post subject: IBM RS/6000 7025-F50 - ServeRaid (IPS) linux driver failure Reply with quote
Good day.

Did anyone succeed to make linux IPS driver work for IBM Ultra3 4-channel RAID
adapter? I've got one of these in my 7025-F50 and it works fine in AIX 5.3, but
when I boot Red Hat FC5-ppc, driver load fails. When booting from rescue or
install CD, I have got a long delay when loading ips.ko, and then kernel bug
message displayed, something like this:

[quote]
BUG: Soft lockup detected on CPU#0
NIP: C000B7B8 LR: F211D274 CTR: C000B7D0

TASK: C2676950[397] 'loader' THREAD: C1D72000
NIP:[C000B7B8] _delay+0x44/0x5c
....
ips_send_wait+0x60/0xec [ips]
ips_inst_phase2+0x13c/0xe0c
....
[unquote]

When I boot installed FC5 system (with all updates applied via 'yum'), kernel
does not attempt to load IPS driver. When modprob-ing by hand, it complains
about inability to allocate 256 bytes of IO memory. Quite a pity, as I've got
two sixpacks loaded with disks connected to this controller. The controller
itself is seen from Linux 'lspci' output as 'IBM ServeRAID adapter [4H]', and
from AIX as:
[quote]
scraid0 P2-I2 PCI 4-Channel Ultra3 SCSI RAID Adapter

Part Number.................09P1521
EC Level....................0H10522
Serial Number...............0031E463
FRU Number..................37L6892
Manufacturer................IBM
Displayable Message.........UL3RAID
Diagnostic Level............04
Device Driver Level.........04
Loadable Microcode Level....4.84.01
ROS Level and ID............4.84.01
Device Specific.(YL)........P2-I2
[unquote]

Again, under AIX this adapter looks OK, I am able to create arrays, volume
groups, filesystems etc, nothing reported by 'errpt' command concerning this
card.

I have googled through but did not find any relevant information. Tried to
remove one Ultra3 SCSI adapter from the system (which has boot disks on it), as
we had similar trouble on IBM intel-based xServer 330 machine with ServeRAID 4L,
where RedHat FC4 did not initialize RAID adapter until we disabled onboard
Adaptec controllers. Nothing helped so far.


Regards

Alex
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