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qemu core dumped when repeat "system_reset" multiple times during guest boot
commit 864ab314f1d924129d06ac7b571f105a2b76a4b2 (HEAD, tag: v4.1.0-rc4, origin/master, origin/HEAD, master)
Test arch:x86 and power
Steps:
1.Boot up guest with command
power cmdline:
/usr/libexec/backup/qemu-kvm \
-smp 8 \
-m 4096 \
-nodefaults \
-device virtio-blk-pci,id=image1,drive=drive_image1,bootindex=1,bus=pci.0,addr=0x7 \
-drive file=rhel77-ppc64le-virtio.qcow2,if=none,id=drive_image1,format=qcow2,cache=none \
-chardev stdio,mux=on,id=serial_id_serial0,server,nowait,signal=off \
-device spapr-vty,id=serial111,chardev=serial_id_serial0 \
-mon chardev=serial_id_serial0,mode=readline \
x86 cmdline:
/usr/libexec/qemu-kvm \
-m 4096 -smp 8 \
-boot menu=on \
-device virtio-blk-pci,id=image1,drive=drive_image1\
-drive file=rhel77-64-virtio.qcow2,if=none,id=drive_image1,format=qcow2,cache=none \
-vga std \
-vnc :9 \
-nographic \
-device virtio-net-pci,netdev=net0,id=nic0,mac=52:54:00:c4:e7:84 \
-netdev tap,id=net0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown,vhost=on \
2.when guest start to boot up kernel(when no output infomation),run hmp command "system_reset"
Result:
Sometimes,qemu core dumped with error as following:
system_reset
(qemu) qemu-system-ppc64: /root/qemu/hw/virtio/virtio.c:225: vring_get_region_caches: Assertion `caches != NULL' failed.
b.sh: line 11: 73679 Aborted (core dumped) /usr/local/bin/qemu-system-ppc64 -enable-kvm -smp 8 -m 4096 -nodefaults -device virtio-blk-pci,id=image1,drive=drive_image1,bootindex=1,bus=pci.0,addr=0x7 -drive file=rhel77-ppc64le-virtio.qcow2,if=none,id=drive_image1,format=qcow2,cache=none -chardev stdio,mux=on,id=serial_id_serial0,server,nowait,signal=off -device spapr-vty,id=serial111,chardev=serial_id_serial0 -mon chardev=serial_id_serial0,mode=readline
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