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 бо/usr/sbin/libvirtdбп

there is no more debug log.

System run well about half of a year before this problem happened.

Any ideas?

PS: can I reboot virtual machine to resume it?

Thanks

Gao Lin