[libvirt] Disconnected from qemu, keepalive timeout

[Martin Kletzander]

On Wed, Jul 13, 2016 at 03:47:37PM +0000, Nir Levy wrote:
>Hello Guys,
>
>Thanks for reading this,
>I have compiled libvirt and qemu over fedora 22 for using debug information and no opt ("-g3 -O0").
>I am investigating the xml feature
>  <qemu:commandline>
>    <qemu:arg value='-trace'/>
>    <qemu:arg value='events=/home/qemu_traced_symbols'/>
>  </qemu:commandline>
>
>qemu_traced_symbols includes all qemu traced symbols.
>
>I have used:
>catch syscall clone
>set follow-fork-mode child
>set detach-on-fork off
>
>and debugged the child
>so after libvirt start VM2 wanted to debug the parameters (cmd->args, which indeed includes -trace and  events=/home/qemu_traced_symbols
>I have debugged the the child after spawning.
>And returned for the parent (using gdb inferior 1)
>for debugging the virCommandHandshakeWait (with the args)
>
>but I keep getting
>error: Disconnected from qemu:///system due to keepalive timeout
>grep @ libvirt-1.2.21/ shows no code only change log.
>

You are getting this from the 'virsh start $domain' command, right?

>Can you please help me resolve this issue?
>How do those args are passed, is it via JSON?
>

For your use case you really want to disable the keepalive by using -k0
parameter for virsh, so it will become 'virsh -k0 start $domain'

>Kind regards,
>Nir Levy
>SW Engineer
>
>Web: www.asocstech.com<http://www.asocstech.com/> |
>[cid:image001.jpg at 01D1B599.5A2C9530]
>



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