main.c:674: undefined reference to `xen_init_mtrr'

main.c:674: undefined reference to `xen_init_mtrr'

[Nathan Stratton]

Trying to compile the latest bleeding edge rebase/master from the Jeremy 
git tree and ran into:

arch/x86/built-in.o: In function `mtrr_bp_init':
/usr/local/src/linux-2.6-xen/arch/x86/kernel/cpu/mtrr/main.c:674: 
undefined reference to `xen_init_mtrr'
make: *** [.tmp_vmlinux1] Error 1

I would go back a few versions, but I also need Infiniband support that is 
in the latest kernel.

><>
Nathan Stratton                                CTO, BlinkMind, Inc.
nathan at robotics.net                         nathan at blinkmind.com
http://www.robotics.net                        http://www.blinkmind.com

main.c:674: undefined reference to `xen_init_mtrr'

[Nathan Stratton]

Trying to compile the latest bleeding edge rebase/master from the Jeremy git 
tree and ran into:

arch/x86/built-in.o: In function `mtrr_bp_init':
/usr/local/src/linux-2.6-xen/arch/x86/kernel/cpu/mtrr/main.c:674: undefined 
reference to `xen_init_mtrr'
make: *** [.tmp_vmlinux1] Error 1

I would go back a few versions, but I also need Infiniband support that is in 
the latest kernel.

> <>
Nathan Stratton                                CTO, BlinkMind, Inc.
nathan at robotics.net                         nathan at blinkmind.com
http://www.robotics.net                        http://www.blinkmind.com

Re: main.c:674: undefined reference to `xen_init_mtrr'

[Jeremy Fitzhardinge]

On 08/04/09 17:37, Nathan Stratton wrote:
>
> Trying to compile the latest bleeding edge rebase/master from the
> Jeremy git tree and ran into:
>
> arch/x86/built-in.o: In function `mtrr_bp_init':
> /usr/local/src/linux-2.6-xen/arch/x86/kernel/cpu/mtrr/main.c:674:
> undefined reference to `xen_init_mtrr'
> make: *** [.tmp_vmlinux1] Error 1

Thanks, that's a bug, bug the workaround is to also enable CONFIG_XEN_DOM0.

However, rebase/master is *very* bleeding edge at the moment, so I don't
think it will help solve your problem.

    J

Re: main.c:674: undefined reference to `xen_init_mtrr'

[Nathan Stratton]

On Thu, 6 Aug 2009, Jeremy Fitzhardinge wrote:

> On 08/04/09 17:37, Nathan Stratton wrote:
>>
>> Trying to compile the latest bleeding edge rebase/master from the
>> Jeremy git tree and ran into:
>>
>> arch/x86/built-in.o: In function `mtrr_bp_init':
>> /usr/local/src/linux-2.6-xen/arch/x86/kernel/cpu/mtrr/main.c:674:
>> undefined reference to `xen_init_mtrr'
>> make: *** [.tmp_vmlinux1] Error 1
>
> Thanks, that's a bug, bug the workaround is to also enable CONFIG_XEN_DOM0.

Actually, CONFIG_XEN_DOM0 was enabled, I ended up having to disable 
CONFIG_MTRR to get it to compile. Not sure what damage that does, but so 
far things look good.

> However, rebase/master is *very* bleeding edge at the moment, so I don't
> think it will help solve your problem.

I know, grasping at straws, trying to fix that kernel_panic and I also 
need a newer xen kernel then 2.6.18 that also has Infiniband.

-Nathan

Re: main.c:674: undefined reference to `xen_init_mtrr'

[Jeremy Fitzhardinge]

On 08/06/09 17:47, Nathan Stratton wrote:
> Actually, CONFIG_XEN_DOM0 was enabled, I ended up having to disable
> CONFIG_MTRR to get it to compile. Not sure what damage that does, but
> so far things look good.

Hm, OK.  I wouldn't have thought it would be compiling that without
CONFIG_MTRR.  Anyway, that's useful to have in general; it may get you a
performance kick.

>> However, rebase/master is *very* bleeding edge at the moment, so I don't
>> think it will help solve your problem.
>
> I know, grasping at straws, trying to fix that kernel_panic and I also
> need a newer xen kernel then 2.6.18 that also has Infiniband.

Try xen-tip/master.

    J

Re: main.c:674: undefined reference to `xen_init_mtrr'

[Nathan Stratton]

On Thu, 6 Aug 2009, Jeremy Fitzhardinge wrote:

>> I know, grasping at straws, trying to fix that kernel_panic and I also
>> need a newer xen kernel then 2.6.18 that also has Infiniband.
>
> Try xen-tip/master.

No infiniband. :(

-Nathan

Re: main.c:674: undefined reference to `xen_init_mtrr'

[Jeremy Fitzhardinge]

On 08/06/09 18:03, Nathan Stratton wrote:
> On Thu, 6 Aug 2009, Jeremy Fitzhardinge wrote:
>
>>> I know, grasping at straws, trying to fix that kernel_panic and I also
>>> need a newer xen kernel then 2.6.18 that also has Infiniband.
>>
>> Try xen-tip/master.
>
> No infiniband. :(

What version did ib come in?

    J

Re: main.c:674: undefined reference to `xen_init_mtrr'

[Nathan Stratton]

On Fri, 7 Aug 2009, Jeremy Fitzhardinge wrote:

> On 08/06/09 18:03, Nathan Stratton wrote:
>> On Thu, 6 Aug 2009, Jeremy Fitzhardinge wrote:
>>
>>>> I know, grasping at straws, trying to fix that kernel_panic and I also
>>>> need a newer xen kernel then 2.6.18 that also has Infiniband.
>>>
>>> Try xen-tip/master.
>>
>> No infiniband. :(
>
> What version did ib come in?

2.6.31

-nathan