https://bugzilla.kernel.org/show_bug.cgi?id=104631
Bug ID: 104631
Summary: Error on walk_shadow_page_get_mmio_spte when starting
Qemu
Product: Virtualization
Version: unspecified
Kernel Version: 4.3.0-rc1
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: kvm
Assignee: [email protected]
Reporter: [email protected]
Regression: Yes
Created attachment 187691
--> https://bugzilla.kernel.org/attachment.cgi?id=187691&action=edit
Output from Qemu
Ever since I upgraded to 4.3-rc1 I have been unable to run Qemu with KVM.
The launch command for qemu used is:
QEMU_SDL_SAMPLES=3072 SDL_AUDIODRIVER=pulse QEMU_AUDIO_DRV=sdl
qemu-system-x86_64 -enable-kvm -M q35 -m 4096 -cpu host -smp
6,sockets=1,cores=6,threads=1 -bios /usr/share/seabios/bios.bin -device
ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 -drive
file=vm_image.img,id=disk,format=raw -soundhw ac97
The version of Qemu is:
QEMU emulator version 2.2.0 (Debian 1:2.2+dfsg-5expubuntu9.4)
This kernel has been custom built from commit
6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f on Linus' kernel repo, with only
change being a patch that removes the 40-wire check on PATA controllers.
Hardware has AMD-v as well IOMMU enabled. Motherboard is an ASRock 990FX
Extreme 4 with an FX8350.
Looking at the commit logs, it seems that commit
47ab8751695f71d85562ff497e21b521c789247c
(
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/x86/kvm/mmu.c?id=47ab8751695f71d85562ff497e21b521c789247c
) might be related to this problem.
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