how to debug kvm run failed bad address error

[Jiatong Shen]

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

command.txt
Description: Text document