Hi,

i use opensuse12.2 x86_64.

May be it would helpfully for your development

[   51.943819] ------------[ cut here ]------------
[   51.943838] WARNING: at
/home/abuild/rpmbuild/BUILD/kernel-default-3.4.28/linux-3.4/mm/memcontrol.c:5007
mem_cgroup_create+0x3ac/0x510()
[   51.943841] Hardware name: ProLiant DL560 Gen8
[   51.943842] Creating hierarchies with use_hierarchy==0 (flat hierarchy)
is considered deprecated. If you believe that your setup is correct, we
kindly ask you to contact linux-mm@kvack.org and let us know
[   51.943844] Modules linked in: ip6table_filter ip6_tables iptable_filter
ip_tables ebtable_nat ebtables x_tables nfs fscache nfsd lockd auth_rpcgss
nfs_acl sunrpc bridge stp kvm_intel kvm usb_storage joydev sg bnx2x mperf
coretemp crc32c_intel ghash_clmulni_intel aesni_intel cryptd crc32c
aes_x86_64 sb_edac ioatdma dca hpilo iTCO_wdt hpwdt libcrc32c
iTCO_vendor_support mdio edac_core pcspkr serio_raw tg3 button container
acpi_power_meter sha1_ssse3 sha1_generic arc4 ecb ppp_mppe ppp_generic slhc
microcode autofs4 usbhid uhci_hcd ehci_hcd usbcore usb_common thermal
processor thermal_sys scsi_dh_emc scsi_dh_hp_sw scsi_dh_alua scsi_dh_rdac
scsi_dh hpsa
[   51.943880] Pid: 7222, comm: libvirtd Tainted: G        W
 3.4.28-2.20-default #1
[   51.943882] Call Trace:
[   51.943909]  [<ffffffff81004598>] dump_trace+0x78/0x2c0
[   51.943920]  [<ffffffff81532e6a>] dump_stack+0x69/0x6f
[   51.943926]  [<ffffffff8103ead9>] warn_slowpath_common+0x79/0xc0
[   51.943931]  [<ffffffff8103ebd5>] warn_slowpath_fmt+0x45/0x50
[   51.943934]  [<ffffffff8151c04c>] mem_cgroup_create+0x3ac/0x510
[   51.943944]  [<ffffffff810a7983>] cgroup_mkdir+0x103/0x3a0
[   51.943952]  [<ffffffff81160345>] vfs_mkdir+0xb5/0x170
[   51.943958]  [<ffffffff81164444>] sys_mkdirat+0xe4/0xf0
[   51.943968]  [<ffffffff81545c7d>] system_call_fastpath+0x1a/0x1f
[   51.943974]  [<00007f12ed256f77>] 0x7f12ed256f76
[   51.943975] ---[ end trace a6c54db610fd5bb5 ]---