Re: kvm causing memory corruption? now 2.6.26

From: Avi Kivity
Date: Thu Jul 17 2008 - 01:38:56 EST

Dave Hansen wrote:
On a suggestion of Anthony's, I tried a defconfig kernel.

It is now bombing out on an assertion in the lapic code:

Well that assert is plain wrong:

static int apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
int short_hand, int dest, int dest_mode)
int result = 0;
struct kvm_lapic *target = vcpu->arch.apic;

apic_debug("target %p, source %p, dest 0x%x, "
"dest_mode 0x%x, short_hand 0x%x",
target, source, dest, dest_mode, short_hand);


It should be ASSERT(target), if anything.

I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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