From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 206579] KVM with passthrough generates "BUG: kernel NULL pointer dereference" and crashes
Date: Mon, 24 Feb 2020 21:43:33 +0000 [thread overview]
Message-ID: <bug-206579-28872-TguzqObVHu@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-206579-28872@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=206579
--- Comment #15 from muncrief (rmuncrief@humanavance.com) ---
Created attachment 287595
--> https://bugzilla.kernel.org/attachment.cgi?id=287595&action=edit
Dmesg crash output with properly cast pointer
I looked at the modified patch I made and realized the pointer indirection was
probably wrong so I looked at the other code and cast it the same way. There's
still a kvm crash at boot and I attached the dmesg to this comment. I just
didn't want to add any confusion by patching things incorrectly. Here's what
the final code looks like after (what I hope is) the correct patch:
int ret;
struct kvm_vcpu *vcpu = &svm->vcpu;
if (!avic && !irqchip_in_kernel(vcpu->kvm))
return 0;
ret = avic_init_backing_page(&svm->vcpu);
if (ret)
return ret;
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next prev parent reply other threads:[~2020-02-24 21:43 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 18:17 [Bug 206579] New: KVM with passthrough generates "BUG: kernel NULL pointer dereference" and crashes bugzilla-daemon
2020-02-18 6:45 ` [Bug 206579] " bugzilla-daemon
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