* kvmtrace and debugging kvm
@ 2010-04-14 3:11 Manish Regmi
2010-04-14 7:56 ` Jan Kiszka
0 siblings, 1 reply; 2+ messages in thread
From: Manish Regmi @ 2010-04-14 3:11 UTC (permalink / raw)
To: kvm
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: kvmtrace and debugging kvm
2010-04-14 3:11 kvmtrace and debugging kvm Manish Regmi
@ 2010-04-14 7:56 ` Jan Kiszka
0 siblings, 0 replies; 2+ messages in thread
From: Jan Kiszka @ 2010-04-14 7:56 UTC (permalink / raw)
To: Manish Regmi; +Cc: kvm
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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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