Alexander Graf hat am Sun 26. Feb, 12:43 (+0100) geschrieben: > On 25.02.2012, at 15:51, Jörg Sommer wrote: > > Jörg Sommer hat am Tue 21. Feb, 09:32 (+0100) geschrieben: > >> Alexander Graf hat am Mon 20. Feb, 22:27 (+0100) geschrieben: > >>> On 20.02.2012, at 18:38, Jörg Sommer wrote: > >>>> Alexander Graf hat am Tue 22. Nov, 22:29 (+0100) geschrieben: > >>>>> On 22.11.2011, at 21:04, Jörg Sommer wrote: > >>>>>> [1] »kernel BUG at include/linux/kvm_host.h:603!« > >>>>>> http://www.mail-archive.com/kvm@xxxxxxxxxxxxxxx/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 :). > >> > >> This kernel (e9badff4b38a3f8b2c20aa8a30db210caf85a497) fails to build: > >> > >> CC [M] arch/powerpc/kvm/book3s_pr.o > >> arch/powerpc/kvm/book3s_pr.c: In function ‘kvm_vcpu_ioctl_get_one_reg’: > >> arch/powerpc/kvm/book3s_pr.c:883:45: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] > >> arch/powerpc/kvm/book3s_pr.c:883:80: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] > Yikes. Does this patch work for you? > diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c > index ee222ec..f329eae 100644 > --- a/arch/powerpc/kvm/book3s_pr.c > +++ b/arch/powerpc/kvm/book3s_pr.c > @@ -880,7 +880,8 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) > > switch (reg->id) { > case KVM_REG_PPC_HIOR: > - r = put_user(to_book3s(vcpu)->hior, (u64 __user *)reg->addr); > + r = put_user(to_book3s(vcpu)->hior, > + (u64 __user *)(long)reg->addr); Yes and no. It brings me a step further, but not to a working kernel. CHK include/linux/version.h CHK include/generated/utsrelease.h CALL scripts/checksyscalls.sh CC [M] arch/powerpc/kvm/book3s_pr.o LD [M] arch/powerpc/kvm/kvm.o Building modules, stage 2. MODPOST 227 modules ERROR: "__get_user_bad" [arch/powerpc/kvm/kvm.ko] undefined! make[1]: *** [__modpost] Fehler 1 make: *** [modules] Fehler 2 -- Der Wille und nicht die Gabe macht den Geber.
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