On 7/2/07, Dave Hansen <[EMAIL PROTECTED]> wrote:
> I had a host running kvm-27 oops on me last week. The system had been
> up for about 2 weeks, and had probably run and stopped at least a couple
> hundred kvm guests. I don't think it is very reproducible, but here it
> is anyway. The host is running 2.6.20.4.
>
> Here's the actual BUG_ON() that was hit:
>
> static void *mmu_memory_cache_alloc(struct kvm_mmu_memory_cache *mc,
> size_t size)
> {
> void *p;
>
> BUG_ON(!mc->nobjs);
> p = mc->objects[--mc->nobjs];
> memset(p, 0, size);
> return p;
> }
MMU working memory was exhausted during a guest context switch. It has
been fixed by:
KVM: Lazy guest cr3 switching
4b82b37a35a085a07d9ed84efee06c69655fd3d1
which is included in KVM-28.
Luca
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