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Date: Fri, 17 Jul 2009 13:01:40 -0400 (EDT)
From: Parag Warudkar <parag.lkml@gmail.com>
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Subject: emulation failed (pagetable) rip
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On today's git, while installing Ubuntu Jaunty I am getting a load of -

[ 1962.876257] __ratelimit: 1457842 callbacks suppressed
[ 1962.876261] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876268] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876274] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876280] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876286] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876292] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876297] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876303] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876309] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07
[ 1962.876315] emulation failed (pagetable) rip 7f62e684b5ab 66 0f 7f 07

It happens right after Partition formatting sequence in Jaunty install.
The installation fails with unable to mount partition vda.

QEMU PC emulator version 0.9.1 (kvm-84)

kvm -drive file=ubuntu-jaunty.img,if=virtio,boot=on -net nic,model=virtio 
-net user -m 1024M -cdrom /media/New\ Volume/Downloads/ubuntu-9.04-desktop-amd64.iso 

If I remove the file=...,if=virtio and instead use plain old hda=... the 
install succeeds - probably safe to say virtio is at fault?

Haven't recently tested KVM so can't say when this started.

Any ideas?