Re: [Libguestfs] virt-inspector command hung up
On Sun, Mar 12, 2017 at 02:28:30PM +0800, power off wrote:
Hi,
I met a problem when using libguestfs-1.28.1 (centos 7.1) on a virtual machine.
Execute virt-inspector command to get OS information and the command hangs .
.......................
Launching appliance, timeout set to 600 seconds
libguestfs: launch: program=virt-inspcetor
libguestfs: launch: version=1.28.1rhel=7,release=1.18.el7,libvirt
libguestfs: launch: backend registered: unix
libguestfs: launch: backend registered: uml
libguestfs: launch: backend registered: libvirt
libguestfs: launch: backend registered: direct
libguestfs: launch: backend=libvirt
libguestfs: launch: tmpdir=/tmp/libguestfsQp28Qo
libguestfs: launch: umask=0027
libguestfs: launch: euid=2016
libguestfs: libvirt version = 1002008 (1.2.8)
libguestfs: guest random name = guestfs-w8hcve9rhu0dve4a
libguestfs: [00000ms] connect to libvirt
libguestfs: opening libvirt handle: URI = qemu://session, auth = default+wrapper,
flags = 0
command hung on here.We review the libguestfs soure code
It seems that libguestfs call libvirt API virConnetOpenAuth failed but no returns.
And I set LIBVIRT_DEBUG=debug,and execute virt-inspect command again.
I find the command hung after function virFileFindResourceFull from libvirt debug log.
.........
2017-03-11 07:19:09.246+000: 114046: debug: doRemoteOpen:882 : Peoceeding with sockname
/run/user/2016/libvirt/libvirt-sock
2017-03-11 07:19:09.246+000: 114046: debug: virFileFindResourceFull:1608 : Resolved
'libvirtd' to ‘/usr/sbin/libvirtd’
there is no more debug log.
euid=2016, so you're not running this as root. So it seems as if
the session libvirtd cannot be run for some reason.
Have a look if there are any `libvirtd --timeout=30' processes
running (and kill them if there are).
System run well about half of a year before this problem happened.
Any ideas?
You might try CentOS 7.3, since newer versions of libvirt generally
get bugs fixed.
PS: can I reboot virtual machine to resume it?
If you mean the libguestfs appliance, then no.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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