Messages in this thread | | | Date | Sun, 31 Dec 2006 19:50:09 +0200 | From | Avi Kivity <> | Subject | Re: [KVM][PATCH] smp_processor_id() and sleeping functions used in invalid context |
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Luca Tettamanti wrote: > Hello, > I'm testing KVM on a Core2 CPU. I'm running kernel 2.6.20-git (pulled > few hours ago), configured with SMP and PREEMPT. > > I'm hitting 2 different warnings: > BUG: using smp_processor_id() in preemptible [00000001] code: kvm/7726 > caller is vmx_create_vcpu+0x9/0x2f [kvm_intel] > >
[...]
> vmx_create_vcpu calls alloc_vmcs which uses smp_processor_id() in > preemptible context and pass the result to alloc_vmcs_cpu(); at a later > point the function may be running on a different CPU (hence the result > of cpu_to_node may be meaningless). > > Second one: > BUG: sleeping function called from invalid context at > /home/kronos/src/linux-2.6.git/mm/slab.c:3034 > in_atomic():1, irqs_disabled():0 > 1 lock held by kvm/12706: > #0: (&vcpu->mutex){--..}, at: [<f1b68d02>] kvm_dev_ioctl+0x113/0xf97 > [kvm] > [<b015c32a>] kmem_cache_alloc+0x1b/0x6f > [...]
There are patches for both (I think) flying around. They should land in Linus' tree in a few days.
Thanks,
-- error compiling committee.c: too many arguments to function
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