kvmtrace and debugging kvm

kvmtrace and debugging kvm

[Manish Regmi]

hi,
  I am trying to use kvmtrace but it looks like its no longer used. in
kvm_main.c it is returning -EOPNOTSUP.
kvmtrace -V -D test -o mykvmtest
does not seem to do anything.

is it no longer used? is there any better way of debugging kvm?
Thank you.

---------------------------------------------------------------
regards
Manish Regmi

http://manish-cs.blogspot.com
http://ext2read.sf.net

Re: kvmtrace and debugging kvm

[Jan Kiszka]

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Manish Regmi wrote:
> hi,
>   I am trying to use kvmtrace but it looks like its no longer used. in

Right, kernel support was removed a few releases ago. I think it's time
to drop that tool from the qemu-kvm package.

> kvm_main.c it is returning -EOPNOTSUP.
> kvmtrace -V -D test -o mykvmtest
> does not seem to do anything.
> 
> is it no longer used? is there any better way of debugging kvm?

Use ftrace. KVM comes with an even better level of event trace
instrumentation for that framework than it was the case with kvmtrace.

Jan


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