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Description of problem:
Boot RHEL7.4 guest with ivshmem-plain and virtio-blk-pci and the latest seabios-1.10.2-2.el7.x86_64. Guest kernel can not be loaded. I added a guest screen to attachment. If boot guest with ide-driver+seabios-1.10.2-2.el7.x86_64. guest works well.
QE also tested previous seabios version(seabios-1.9.1-5.el7.x86_64). Guest work well. According to bug 1373154, This issue has been fixed with seabios-1.9.1-5.el7.x86_64 before. So it is a regression bug.
Version-Release number of selected component (if applicable):
seabios-1.10.2-2.el7.x86_64
qemu-kvm-rhev-2.9.0-0.el7.mrezanin201703210848.x86_64
3.10.0-648.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1.
/usr/libexec/qemu-kvm -name seabios-test -enable-kvm -m 4G -cpu Opteron_G5 -smp 4,cores=4,threads=1,sockets=1,maxcpus=4 -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/tmp/126NICW10S64SOB,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime,driftfix=slew -boot order=cdn,menu=on -drive file=/home/rhel7.4.qcow2,if=none,id=drive-virtio0-0-0,format=qcow2,serial=mike_cao,cache=none -device virtio-blk-pci,drive=drive-virtio0-0-0,id=virtio0-0-0 -netdev tap,script=/etc/qemu-ifup,downscript=no,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=a0:d3:c1:fb:dd:d2,bus=pci.0,addr=0x4 -vnc :2 -monitor stdio -vga qxl -serial unix:/tmp/console,server,nowait \
-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on -device ivshmem-plain,memdev=mem \
2.
3.
Actual results:
Guest fail
Expected results:
works
Additional info: