Bug 1857045

Description of problem:

Windows guest BSOD when install netkvm driver after enable "0x009209bb" flag in verifer on virtio-win-prewhql-186 

Version-Release number of selected component (if applicable):
qemu-kvm-4.2.0-19.module+el8.2.0+6296+6b821950.x86_64
kernel-4.18.0-193.el8.x86_64
seabios-1.13.0-1.module+el8.2.0+5520+4e5817f3.x86_64
virtio-win-prewhql-0.1-186.iso

guest: Win2016


How reproducible:
100%

Steps to Reproduce:
1.Start guest with qemu cmds:
MALLOC_PERTURB_=1  /usr/libexec/qemu-kvm \
    -name 'avocado-vt-vm1'  \
    -sandbox on  \
    -machine q35 \
    -device pcie-root-port,id=pcie-root-port-0,multifunction=on,bus=pcie.0,addr=0x1,chassis=1 \
    -device pcie-pci-bridge,id=pcie-pci-bridge-0,addr=0x0,bus=pcie-root-port-0  \
    -nodefaults \
    -device VGA,bus=pcie.0,addr=0x2 \
    -m 14336  \
    -smp 24,maxcpus=24,cores=12,threads=1,dies=1,sockets=2  \
    -cpu 'Skylake-Server',hv_stimer,hv_synic,hv_vpindex,hv_relaxed,hv_spinlocks=0xfff,hv_vapic,hv_time,hv_frequencies,hv_runtime,hv_tlbflush,hv_reenlightenment,hv_stimer_direct,hv_ipi,+kvm_pv_unhalt \
    -device pcie-root-port,id=pcie-root-port-1,port=0x1,addr=0x1.0x1,bus=pcie.0,chassis=2 \
    -device qemu-xhci,id=usb1,bus=pcie-root-port-1,addr=0x0 \
    -device usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 \
    -blockdev node-name=file_image1,driver=file,aio=threads,filename=/home/kvm_autotest_root/images/win2016-64-virtio.qcow2,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=drive_image1,driver=qcow2,cache.direct=on,cache.no-flush=off,file=file_image1 \
    -device pcie-root-port,id=pcie-root-port-2,port=0x2,addr=0x1.0x2,bus=pcie.0,chassis=3 \
    -device virtio-blk-pci,id=image1,drive=drive_image1,bootindex=0,write-cache=on,bus=pcie-root-port-2,addr=0x0 \
    -device rtl8139,mac=9a:da:c9:87:9e:de,id=id66n7cc,netdev=idv9hlTZ,bus=pcie-pci-bridge-0,addr=0x1  \
    -netdev tap,id=idv9hlTZ \
    -device pcie-root-port,id=pcie-root-port-3,port=0x3,addr=0x1.0x3,bus=pcie.0,chassis=4 \
    -device virtio-net-pci,mac=9a:da:c9:87:9e:df,id=id7ANcTT,netdev=idmcFCC2,bus=pcie-root-port-3,addr=0x0  \
    -netdev tap,id=idmcFCC2 \
    -blockdev node-name=file_cd1,driver=file,read-only=on,aio=threads,filename=/home/kvm_autotest_root/iso/windows/winutils.iso,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=drive_cd1,driver=raw,read-only=on,cache.direct=on,cache.no-flush=off,file=file_cd1 \
    -device ide-cd,id=cd1,drive=drive_cd1,bootindex=1,write-cache=on,bus=ide.0,unit=0 \
    -blockdev node-name=file_virtio,driver=file,read-only=on,aio=threads,filename=/home/kvm_autotest_root/iso/windows/virtio-win-prewhql-0.1-186.iso,cache.direct=on,cache.no-flush=off \
    -blockdev node-name=drive_virtio,driver=raw,read-only=on,cache.direct=on,cache.no-flush=off,file=file_virtio \
    -device ide-cd,id=virtio,drive=drive_virtio,bootindex=2,write-cache=on,bus=ide.1,unit=0  \
    -vnc :10  \
    -rtc base=localtime,clock=host,driftfix=slew  \
    -boot menu=off,order=cdn,once=c,strict=off \
    -enable-kvm \
    -device pcie-root-port,id=pcie_extra_root_port_0,multifunction=on,bus=pcie.0,addr=0x3,chassis=5 \
    -qmp tcp:0:1231,server,nowait \
    -monitor stdio \


2.Execute command: verifier /flags 0x009209BB /driver netkvm.sys

3. Reboot the guest: shutdown -r -t 0

4.Sending command: D:\devcon\win7_amd64\devcon.exe updateni E:\NetKVM\2k16\amd64\netkvm.inf "PCI\VEN_1AF4&DEV_1041"



Actual results:
windows guest hit BSOD.

Expected results:
Netkvm driver can be installed successfully.


Additional info:
1. Tried with virtio-win-prewhql-178, not reproduced this issue, so it should be a regression.
2. Tried with virtio-win-prewhql-185, not reproduced this issue.
3. only this issue on win2016 ,not hit on win2019

dump file:
http://fileshare.englab.nay.redhat.com/pub/section2/coredump/bz1857045/