Re: kvm_buf_set_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.

[Dr. David Alan Gilbert]

* Philippe Mathieu-Daudé (address@hidden) wrote:
> Cc'ing David/Paolo in case they have a clue...
> 
> On 5/14/20 1:27 PM, Li Feng wrote:
> > Dear all,
> > 
> > I have encountered a weird crash.
> > I remember before a few days it works well and I rebase my code from 
> > upstream.
> > 
> > This is the command:
> > /root/qemu-master/x86_64-softmmu/qemu-system-x86_64 -enable-kvm
> > -device virtio-balloon -cpu host -smp 4 -m 2G -drive
> > file=/root/html/fedora-10g.img,format=raw,cache=none,aio=native,if=none,id=drive-virtio-disk1
> > -device 
> > virtio-blk-pci,scsi=off,drive=drive-virtio-disk1,id=virtio-disk1,bootindex=1
> > -device virtio-net,netdev=nw1,mac=00:11:22:EE:EE:10 -netdev
> > tap,id=nw1,script=no,downscript=no,ifname=tap0 -serial mon:stdio
> > -nographic -object
> > memory-backend-file,id=mem0,size=2G,mem-path=/dev/hugepages,share=on
> > -numa node,memdev=mem0 -vnc 0.0.0.0:100 -machine usb=on,nvdimm -device
> > usb-tablet -monitor unix:///tmp/a.socket,server,nowait -device
> > virtio-serial-pci,id=virtio-serial0,max_ports=16 -chardev
> > socket,id=channel1,path=/tmp/helloworld1,server,nowait -device
> > virtserialport,chardev=channel1,name=com.redhat.rhevm.vdsm1,bus=virtio-serial0.0,id=port1
> > -qmp tcp:0.0.0.0:2234,server,nowait
> > qemu-system-x86_64: error: failed to set MSR 0x48f to 0x7fefff00036dfb
> > qemu-system-x86_64: /root/qemu-master/target/i386/kvm.c:2695:
> > kvm_buf_set_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.

48f is MSR_IA32_VMX_TRUE_EXIT_CTLS
I've not got a note of seeing that one before.

> > This is the commit record:
> > *   c88f1ffc19 - (origin/master, origin/HEAD) Merge remote-tracking
> > branch 'remotes/kevin/tags/for-upstream' into staging (3 days ago)
> > <Peter Maydell>
> > |\
> > | * 47e0b38a13 - block: Drop unused .bdrv_has_zero_init_truncate (3
> > days ago) <Eric Blake>
> > | * dbc636e791 - vhdx: Rework truncation logic (3 days ago) <Eric Blake>
> > | * bda4cdcbb9 - parallels: Rework truncation logic (3 days ago) <Eric 
> > Blake>
> > | * be9c9404db - ssh: Support BDRV_REQ_ZERO_WRITE for truncate (3 days
> > ago) <Eric Blake>
> > | * fec00559e7 - sheepdog: Support BDRV_REQ_ZERO_WRITE for truncate (3
> > days ago) <Eric Blake>
> > | * 2f98910d5b - rbd: Support BDRV_REQ_ZERO_WRITE for truncate (3 days
> > ago) <Eric Blake>
> > 
> > I run this qemu in a VM base on EXSi.
> > 
> > Does anyone have the same issue?

cc'ing in Vitaly since he knows VMWare stuff.

What's your host CPU?

Dave

> > 
> > Thanks,
> > 
> > Feng Li
> > 
> 
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK