Xen users - Dec 2005 - ServeRAID 4Lx - Plain 2.6.12.6 works - Xen not

Hi *,

I try to install Xen 3.0.0 on a IBM x342 with a ServeRAID 4Lx controller. 
The box boots with "plain" 2.6.12.6 (aic7xx- and serveraid-support
included). It does not with a similar configuration of 2.6.12.6-xen0.

Any hints, boot options?

by
Töns
-- 
There is no safe distance.

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> I try to install Xen 3.0.0 on a IBM x342 with a ServeRAID 4Lx 
> controller. 
> The box boots with "plain" 2.6.12.6 (aic7xx- and 
> serveraid-support included). It does not with a similar 
> configuration of 2.6.12.6-xen0.
The 2.6.12.6-xen kernel has ServeRAID support. You just need to build an
appropriate initrd -- or follow the RPM install instructions.

Ian


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Hi,

On Wed, Dec 28, 2005 at 02:17:33PM -0000, Ian Pratt
wrote:
> > I try to install Xen 3.0.0 on a IBM x342 with a ServeRAID 4Lx 
> > controller. 
> > The box boots with "plain" 2.6.12.6 (aic7xx- and 
> > serveraid-support included). It does not with a similar 
> > configuration of 2.6.12.6-xen0.
> 
> The 2.6.12.6-xen kernel has ServeRAID support. You just need to build an
> appropriate initrd -- or follow the RPM install instructions.
I''ve got a comparable problem with a simple AMD-Duron-based system.
The plain kernel without xen is booting fine while the xenified dom0
can''t find the root device (a scsi-disk on an ancient Adaptec-aic7xxx).

Do I need a initrd, too?

If yes: Why?

Regards,

Frank

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Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk> wrote:
>> I try to install Xen 3.0.0 on a IBM x342 with a ServeRAID 4Lx 
>> controller. 
>> The box boots with "plain" 2.6.12.6 (aic7xx- and 
>> serveraid-support included). It does not with a similar 
>> configuration of 2.6.12.6-xen0.
> 
> The 2.6.12.6-xen kernel has ServeRAID support. 
Correct. I guess, that I need AIC7XXX support as well
(I''ve attached both .configs).
> You just need to build an appropriate initrd 
The vanilla kernel boots without initrd and detects the
ServeRAID controller "without" problems (ok - obviously
2.6.12s ServeRAID driver is too new):

ips 0000:02:05.0: Warning ! ! ! ServeRAID Version Mismatch
ips 0000:02:05.0: Bios = 7.00.14, Firmware = 7.00.14, Device Driver = 7.10.18
ips 0000:02:05.0: These levels should match to avoid possible compatibility
problems.
scsi2 : IBM PCI ServeRAID 7.10.18  Build 731 <ServeRAID 4Lx>
> -- or follow the RPM install instructions.
I checked the troubleshooting tip

When running the multiple processor kernel, Linux has a
problem accessing controllers that are assigned IRQ 9 by the
system BIOS. To correct this problem, enter the system BIOS
and change the IRQ assigned to each controller.
     
but 

mehl:~# cat /proc/interrupts
            CPU0
   0:   67416450  local-APIC-edge  timer
   1:         95    IO-APIC-edge  i8042
   2:          0          XT-PIC  cascade
  11:          0   IO-APIC-level  ohci_hcd:usb1
  14:         13    IO-APIC-edge  ide0
  24:      36036   IO-APIC-level  ips
  26:         15   IO-APIC-level  aic7xxx
  27:         15   IO-APIC-level  aic7xxx
  28:      59989   IO-APIC-level  eth0
 NMI:          0
 LOC:   67417317
 ERR:          0
 MIS:          0

Generic SCSI support is enabled in both kernels, too.

Further hints?

by
Töns
-- 
There is no safe distance.



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> >> I try to install Xen 3.0.0 on a IBM x342 with a ServeRAID 4Lx 
> >> controller.
> >> The box boots with "plain" 2.6.12.6 (aic7xx- and
serveraid-support
> >> included). It does not with a similar configuration of 
> 2.6.12.6-xen0.
> > 
> > The 2.6.12.6-xen kernel has ServeRAID support. 
> 
> Correct. I guess, that I need AIC7XXX support as well (I''ve 
> attached both .configs).
> 
> > You just need to build an appropriate initrd
> 
> The vanilla kernel boots without initrd and detects the 
> ServeRAID controller "without" problems (ok - obviously 
> 2.6.12s ServeRAID driver is too new):
Your vanilla kernel obviously has serveraid compiled in. The -xen kernel has it
as a module. You need an initrd.
 
> ips 0000:02:05.0: Warning ! ! ! ServeRAID Version Mismatch 
> ips 0000:02:05.0: Bios = 7.00.14, Firmware = 7.00.14, Device 
> Driver = 7.10.18 ips 0000:02:05.0: These levels should match 
> to avoid possible compatibility problems.
> scsi2 : IBM PCI ServeRAID 7.10.18  Build 731 <ServeRAID 4Lx>
> 
> > -- or follow the RPM install instructions.
> 
> I checked the troubleshooting tip
> 
> When running the multiple processor kernel, Linux has a 
> problem accessing controllers that are assigned IRQ 9 by the 
> system BIOS. To correct this problem, enter the system BIOS 
> and change the IRQ assigned to each controller.
>      
> but 
> 
> mehl:~# cat /proc/interrupts
>             CPU0
>    0:   67416450  local-APIC-edge  timer
>    1:         95    IO-APIC-edge  i8042
>    2:          0          XT-PIC  cascade
>   11:          0   IO-APIC-level  ohci_hcd:usb1
>   14:         13    IO-APIC-edge  ide0
>   24:      36036   IO-APIC-level  ips
>   26:         15   IO-APIC-level  aic7xxx
>   27:         15   IO-APIC-level  aic7xxx
>   28:      59989   IO-APIC-level  eth0
>  NMI:          0
>  LOC:   67417317
>  ERR:          0
>  MIS:          0
> 
> Generic SCSI support is enabled in both kernels, too.
> 
> Further hints?
> 
> by
> Töns
> --
> There is no safe distance.
> 
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Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk> wrote:
>>> The 2.6.12.6-xen kernel has ServeRAID support. 
>> 
>> Correct. I guess, that I need AIC7XXX support as well (I''ve 
>> attached both .configs).
>> 
>>> You just need to build an appropriate initrd
>> 
>> The vanilla kernel boots without initrd and detects the 
>> ServeRAID controller "without" problems (ok - obviously 
>> 2.6.12s ServeRAID driver is too new):
> 
> Your vanilla kernel obviously has serveraid compiled in.
> The -xen kernel has it as a module. You need an initrd. 
But I''ve re-compiled the -xen kernel in order to compile
serveraid in (at least it says CONFIG_SCSI_IPS=y and not
CONFIG_SCSI_IPS=m in the .config).

Why should serveraid be a module?

by
Töns
-- 
There is no safe distance.

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> But I''ve re-compiled the -xen kernel in order to compile 
> serveraid in (at least it says CONFIG_SCSI_IPS=y and not 
> CONFIG_SCSI_IPS=m in the .config).
> 
> Why should serveraid be a module?
have you compiled scsi and scsi disk and all the other stuff you need in
too?

Ian 

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