Can't create ploop container on NFS share

Hello,

I'm tryed to install ploop container on NFS. But I can't did it because got bug.

I have nfs_v4 server mounted /vz/private_nfs nfs4:
159.253.17.220:/technode4 /vz/private_nfs nfs4 rw,relatime,vers=4,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=159.xx.xx.xx,minorversion=0,local_lock=none,addr=159.xx.xx.xx 0 0


vzctl create 7804--ostemplate debian-6.0-x86_64 --layout ploop --ipadd 5.45.120.1 --hostname fastvps-ip-parking.fastvps.ee --config vswap-2g --diskspace 10G --private /vz/private_nfs/7804
Creating image: /vz/private_nfs/7804.tmp/root.hdd/root.hdd size=10485760K
Creating delta /vz/private_nfs/7804.tmp/root.hdd/root.hdd bs=2048 size=20971520 sectors v1
Storing /vz/private_nfs/7804.tmp/root.hdd/DiskDescriptor.xml
Error in do_lock (lock.c:136): Error in flock(/vz/private_nfs/7804.tmp/root.hdd/DiskDescriptor.xml.lck): Bad file descriptor
Failed to create image: Error in do_lock (lock.c:136): Error in flock(/vz/private_nfs/7804.tmp/root.hdd/DiskDescriptor.xml.lck): Bad file descriptor [23]
Destroying container private area: /vz/private_nfs/7804
Creation of container private area failed


If we check code, found do_lock function did flock call, but with bad argument.

U can see strace below:

open("/vz/private_nfs/7804.tmp/root.hdd/DiskDescriptor.xml.lck", O_RDONLY) = 6
fcntl(6, F_SETFD, FD_CLOEXEC) = 0
clock_gettime(CLOCK_MONOTONIC, {22757, 261586208}) = 0
rt_sigaction(SIGRT_2, {0x7f425ba3f5b0, [], SA_RESTORER, 0x7f425c0d1960}, {SIG_DFL, [], 0}, 8) = 0
timer_create(CLOCK_MONOTONIC, {0x7fffd9d22d08, SIGRT_2, SIGEV_SIGNAL, {...}}, {0x1718cb000000000}) = 0
timer_settime(0, 0, {it_interval={0, 0}, it_value={60, 0}}, NULL) = 0
flock(6, LOCK_EX) = -1 EBADF (Bad file descriptor)
timer_delete(0) = 0
rt_sigaction(SIGRT_2, {SIG_DFL, [], SA_RESTORER, 0x7f425c0d1960}, NULL, 8) = 0
write(2, "Error in do_lock (lock.c:136): E"..., 125Error in do_lock (lock.c:136): Error in flock(/vz/private_nfs/7804.tmp/root.hdd/DiskDescriptor.xml.lck): Bad file descriptor

Could you fix it?