[Libguestfs] virt-v2v become zombie via python cpopen on error

Hi, We encounter a problem in VDSM project that virt-v2v become zombie task while importing vm from vmware. When virt-v2v is in 'copy disk' mode and we someone deletes the vm at vmware the process hang in read() method, I am pretty sure that its not virt-v2v problem because when I run it from the shell virt-v2v exit with an error, still maybe someone have an idea.... I wrote a small python script that encounter the problem: ---------------------------------------------------------------------------- from cpopen import CPopen env = {'LIBGUESTFS_BACKEND': 'direct'} cmd = ['/usr/bin/virt-v2v', '-ic', 'vpx://....', '-o', 'local', '-os', '/tmp', '-of', 'raw', '-oa', 'sparse', '--password-file', '/tmp/passwd', '--machine-readable', 'bbb'] p = CPopen(cmd, env=env) while p.returncode is None: c = p.stdout.read(1) print c ---------------------------------------------------------------------------- Thanks, Shahar Havivi.