Hello community experts,
I want to ask how to debug errors like follows,
error: kvm run failed Bad address
PC=0000ffffb51041a8 X00=00001240c0340000 X01=0000000000000001
X02=0000000000000000 X03=00001240c0340600 X04=0000fffdc048c34a
X05=00001240c034068a X06=0000000000000000 X07=0000000000000000
X08=0000000000000000 X09=0000000000000000 X10=0000000000000000
X11=0000000000000000 X12=0000000003000000 X13=0000000000010000
X14=0000000000000000 X15=0000000000000000 X16=0000ffff8395ee40
X17=0000ffffb5104050 X18=0000ffffb51d4a70 X19=0000ffff843d4000
X20=0000000000000001 X21=0000aaaad98cec30 X22=00001240c0340000
X23=000000000000068a X24=0000ffff8ea0abc8 X25=0000fffdc162a020
X26=0000000000000000 X27=000000000000068a X28=0000aaaad6f65fd0
X29=0000ffff8ea0a9a0 X30=0000ffff83930f80 SP=0000ffff8ea0a9a0
PSTATE=80001000 N--- EL0t
It is an aarch64 virtual machine and qemu version is 4.2.0. The host is
running an openEuler 22.03 Linux system with kernel 5.10. I am trying to
passthrough an huawei ascend NPU to virtual machine and when above error
message appears, the vm is paused.
My question is how to make sense of this output and find out the root
cause. Thank you very much for the help.
--
Best Regards,
Jiatong Shen
the qemu commad is in attachment
/usr/bin/qemu-system-aarch64 \
-name guest=instance-00004e08,debug-threads=on \
-S \
-object
secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-55-instance-00004e08/master-key.aes
\
-blockdev
'{"driver":"file","filename":"/usr/share/AAVMF/AAVMF_CODE.fd","node-name":"libvirt-pflash0-storage","auto-read-only":true,"discard":"unmap"}'
\
-blockdev
'{"node-name":"libvirt-pflash0-format","read-only":true,"driver":"raw","file":"libvirt-pflash0-storage"}'
\
-blockdev
'{"driver":"file","filename":"/var/lib/libvirt/qemu/nvram/instance-00004e08_VARS.fd","node-name":"libvirt-pflash1-storage","auto-read-only":true,"discard":"unmap"}'
\
-machine
virt-4.2,accel=kvm,usb=off,dump-guest-core=off,gic-version=3,pflash0=libvirt-pflash0-format,pflash1=libvirt-pflash1-format
\
-cpu host \
-m 65536 \
-overcommit mem-lock=off \
-smp 16,sockets=16,cores=1,threads=1 \
-uuid 8f2064ea-b017-48f2-9ee8-9c1df29f287b \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=38,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc,driftfix=slew \
-no-shutdown \
-boot strict=on \
-device
pcie-root-port,port=0x8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1
\
-device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
-device pcie-root-port,port=0xa,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
-device pcie-root-port,port=0xb,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
-device pcie-root-port,port=0xc,chassis=5,id=pci.5,bus=pcie.0,addr=0x1.0x4 \
-device pcie-root-port,port=0xd,chassis=6,id=pci.6,bus=pcie.0,addr=0x1.0x5 \
-device pcie-root-port,port=0xe,chassis=7,id=pci.7,bus=pcie.0,addr=0x1.0x6 \
-device pcie-root-port,port=0xf,chassis=8,id=pci.8,bus=pcie.0,addr=0x1.0x7 \
-device
pcie-root-port,port=0x10,chassis=9,id=pci.9,bus=pcie.0,multifunction=on,addr=0x2
\
-device pcie-root-port,port=0x11,chassis=10,id=pci.10,bus=pcie.0,addr=0x2.0x1 \
-device pcie-root-port,port=0x12,chassis=11,id=pci.11,bus=pcie.0,addr=0x2.0x2 \
-device pcie-root-port,port=0x13,chassis=12,id=pci.12,bus=pcie.0,addr=0x2.0x3 \
-device pcie-root-port,port=0x14,chassis=13,id=pci.13,bus=pcie.0,addr=0x2.0x4 \
-device pcie-root-port,port=0x15,chassis=14,id=pci.14,bus=pcie.0,addr=0x2.0x5 \
-device pcie-root-port,port=0x16,chassis=15,id=pci.15,bus=pcie.0,addr=0x2.0x6 \
-device qemu-xhci,id=usb,bus=pci.3,addr=0x0 \
-device virtio-scsi-pci,id=scsi0,bus=pci.2,addr=0x0 \
-device virtio-serial-pci,id=virtio-serial0,bus=pci.4,addr=0x0 \
-object
secret,id=libvirt-2-storage-secret0,data=udkUid/sikiVSuP9MfreiH3utxXjsYbgFCFka65VzjA=,keyid=masterKey0,iv=ljn2HbTx+vK9269AZ84fKA==,format=base64
\
-device
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,drive=libvirt-2-format,id=scsi0-0-0-0,bootindex=1,write-cache=on
\
-object
secret,id=libvirt-1-storage-secret0,data=LrGlHpygimvJ3WtUaq0BOft4Wa7xOQUA9vVFowq2T1s=,keyid=masterKey0,iv=X+ff6w+cCASaxqM8V57YGw==,format=base64
\
-device
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=1,device_id=drive-scsi0-0-0-1,drive=libvirt-1-format,id=scsi0-0-0-1,write-cache=on
\
-device
virtio-net-pci,mq=on,vectors=34,host_mtu=1500,netdev=hostnet0,id=net0,mac=fa:16:3e:bb:e2:ab,bus=pci.1,addr=0x0
\
-serial chardev:charserial0 \
-chardev socket,id=charchannel0,fd=71,server,nowait \
-device
virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0
\
-device usb-tablet,id=input0,bus=usb.0,port=1 \
-device usb-kbd,id=input1,bus=usb.0,port=2 \
-vnc 100.209.8.157:3,password \
-device virtio-gpu-pci,id=video0,max_outputs=1,bus=pci.8,addr=0x0 \
-device vfio-pci,host=0000:41:00.0,id=hostdev0,bus=pci.5,addr=0x0 \
-device virtio-balloon-pci,id=balloon0,bus=pci.6,addr=0x0 \
-object rng-random,id=objrng0,filename=/dev/urandom \
-device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.7,addr=0x0 \
-sandbox
on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
