Hi, Lianbo
> > In addition, I just got a dump file generated by the "virsh dump" command, the dumpfile doesn't have the vmcoreinfo, and get the same errors
> > with or without this patch, can you also double check? Maybe it is a similar issue.
> >
> Ok, let me check further.
> and can you tell me what kernel versin and linux distribution you are used?
>
This was reproduced on Fedora36:
Host OS: kernel-5.18.6-200.fc36.aarch64
Guest OS: kernel-5.17.5-300.fc36.aarch64
> > [root@hpe-apollo-cn99xx-18 home]# /home/crash/crash vmlinux dump.core --machdep vabits_actual=48
I used ubuntu-18.04-arm64 to reproduce your issue,kernel version
is:4.15.18, in this version,arm64 still not support
vabits_actual(5383cc6efed1 arm64: mm: Introduce vabits_actual),so we
can't use "--machdep vabits_actual=48", after remove "--machdep
vabits_actual=48",crash-utility can work fine.
It is easy to reproduce on Fedora 36, Can you try it?
Thanks.
Lianbo