lkml.org 
[lkml]   [2012]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Current kernel fails to compile with KVM on PowerPC
From
Date

On 20.02.2012, at 18:38, Jörg Sommer wrote:

> Hello Alexander,
>
> Alexander Graf hat am Tue 22. Nov, 22:29 (+0100) geschrieben:
>> On 22.11.2011, at 21:04, Jörg Sommer wrote:
>>> Jörg Sommer hat am Mon 07. Nov, 20:48 (+0100) geschrieben:
>>>> I'm trying to build the kernel with the git commit-id
>>>> 31555213f03bca37d2c02e10946296052f4ecfcd, but it fails
>>>>
>>>> CHK include/linux/version.h
>>>> HOSTCC scripts/mod/modpost.o
>>>> CHK include/generated/utsrelease.h
>>>> UPD include/generated/utsrelease.h
>>>> HOSTLD scripts/mod/modpost
>>>> GEN include/generated/bounds.h
>>>> CC arch/powerpc/kernel/asm-offsets.s
>>>> In file included from arch/powerpc/kernel/asm-offsets.c:59:0:
>>>> /home/joerg/git/linux/arch/powerpc/include/asm/kvm_book3s.h: In function ‘compute_tlbie_rb’:
>>>> /home/joerg/git/linux/arch/powerpc/include/asm/kvm_book3s.h:393:10: error: ‘HPTE_V_SECONDARY’ undeclared (first use in this function)
>>>> /home/joerg/git/linux/arch/powerpc/include/asm/kvm_book3s.h:393:10: note: each undeclared identifier is reported only once for each function it appears in
>>>> /home/joerg/git/linux/arch/powerpc/include/asm/kvm_book3s.h:396:12: error: ‘HPTE_V_1TB_SEG’ undeclared (first use in this function)
>>>> /home/joerg/git/linux/arch/powerpc/include/asm/kvm_book3s.h:401:10: error: ‘HPTE_V_LARGE’ undeclared (first use in this function)
>>>> /home/joerg/git/linux/arch/powerpc/include/asm/kvm_book3s.h:415:2: warning: right shift count >= width of type [enabled by default]
>>>> make[3]: *** [arch/powerpc/kernel/asm-offsets.s] Fehler 1
>>>> make[2]: *** [prepare0] Fehler 2
>>>> make[1]: *** [deb-pkg] Fehler 2
>>>> make: *** [deb-pkg] Fehler 2
>>>
>>> I'm still having this problem. I can' build
>>> 6fe4c6d466e95d31164f14b1ac4aefb51f0f4f82. Are there any patches to
>>> make the kernel builds and do not oops [1] on PowerPC?
>>
>> The failures above should be fixed by now.
>>
>>> [1] »kernel BUG at include/linux/kvm_host.h:603!«
>>> http://www.mail-archive.com/kvm@vger.kernel.org/msg61433.html
>>
>> This is unfortunately still there. It's because of preemption being
>> enabled. Please just use CONFIG_PREEMPT_NONE for the time being
>
> This doesn't help. I've build with CONFIG_PREEMPT_NONE, but I'm getting
> this Oops, when I start qemu.

Could you please try git://git.kernel.org/pub/scm/virt/kvm/kvm.git? I fixed a bunch of things with preemption since then and it definitely worked for me. If it still fails in that tree, I can try again to reproduce it :).


Alex

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2012-02-20 22:29    [from the cache]
©2003-2011 Jasper Spaans