kernel: Soft lockup

Estimados:
Poseo una bd postgresql en un entorno virtualizado bajo vmware y revisando
los logs me encontre con lo siguiente:

2013-11-28T08:29:20.988215-03:00 master kernel: [15485041.703492] BUG: soft
lockup - CPU#1 stuck for 123s! [postgres:22979]
2013-11-28T08:29:20.988242-03:00 master kernel: [15485041.739235] Modules
linked in: xt_tcpudp xt_pkttype xt_LOG xt_limit vsock(O) ip6t_REJECT
nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT
iptable_filter ip6table_mangle nf_conntrack_netbios_ns
nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables
xt_conntrack nf_conntrack ip6table_filter acpiphp ip6_tables x_tables mperf
coretemp sg sr_mod i2c_piix4 mptctl vmw_balloon vmci(O) ppdev parport_pc
shpchp e1000 pcspkr pci_hotplug crc32c_intel ghash_clmulni_intel
aesni_intel ablk_helper cryptd lrw aes_x86_64 xts gf128mul floppy cdrom
microcode parport button ac container autofs4 vmwgfx ttm drm processor
thermal_sys scsi_dh_emc scsi_dh_alua scsi_dh_rdac scsi_dh_hp_sw scsi_dh
ata_generic ata_piix mptspi mptscsih mptbase scsi_transport_spi vmw_pvscsi
vmxnet3
2013-11-28T08:29:20.988244-03:00 master kernel: [15485041.739308] CPU 1
2013-11-28T08:29:20.988246-03:00 master kernel: [15485041.739311] Pid:
22979, comm: postgres Tainted: G O 3.7.10-1.1-desktop #1 VMware,
Inc. VMware Virtual Platform/440BX Desktop Reference Platform
2013-11-28T08:29:20.988247-03:00 master kernel: [15485041.739313] RIP:
0033:[<00000000006a6d90>] [<00000000006a6d90>] 0x6a6d8f
2013-11-28T08:29:20.988248-03:00 master kernel: [15485041.739318] RSP:
002b:00007fffd9fdd600 EFLAGS: 00000202
2013-11-28T08:29:20.988253-03:00 master kernel: [15485041.739320] RAX:
0000000000000069 RBX: 00007f5b08940ec8 RCX: 0000000000000006
2013-11-28T08:29:20.988255-03:00 master kernel: [15485041.739321] RDX:
00000000029104d6 RSI: 00000000ffffffc0 RDI: 0000000002910954
2013-11-28T08:29:20.988256-03:00 master kernel: [15485041.739322] RBP:
000000000291096d R08: 0000000000000001 R09: 00007f5bd5f8ed90
2013-11-28T08:29:20.988257-03:00 master kernel: [15485041.739324] R10:
00007fffd9fdd068 R11: 00007f5bd5fcb1f0 R12: 00000000028076a8
2013-11-28T08:29:20.988258-03:00 master kernel: [15485041.739325] R13:
00000000000081e8 R14: 00007f5b0893feb8 R15: 0000000000008c17
2013-11-28T08:29:20.988259-03:00 master kernel: [15485041.739327] FS:
00007f5bd7e297c0(0000) GS:ffff88007fd00000(0000) knlGS:0000000000000000
2013-11-28T08:29:20.988261-03:00 master kernel: [15485041.739328] CS: 0010
DS: 0000 ES: 0000 CR0: 0000000080050033
2013-11-28T08:29:20.988262-03:00 master kernel: [15485041.739329] CR2:
00007f5b08940edc CR3: 0000000037b1f000 CR4: 00000000000007e0
2013-11-28T08:29:20.988263-03:00 master kernel: [15485041.739333] DR0:
0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
2013-11-28T08:29:20.988265-03:00 master kernel: [15485041.739337] DR3:
0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
2013-11-28T08:29:20.988266-03:00 master kernel: [15485041.739338] Process
postgres (pid: 22979, threadinfo ffff8800253ae000, task ffff8800247063c0)
2013-11-28T08:29:20.988267-03:00 master kernel: [15485041.739339]

no se si es extraño, pero todos los servicios funcionan con normalidad, no
veo alteraciones en cuanto a la performance de la bd, ni en la red, tampoco
en el sistema operativo, pero me preocupa que pueda estar pasando ya que
nunca antes habia visto este mensaje.
Seguire investigando, pero si alguien sabe que puede estar pasando, talvez
pueda echarme la punta del ovillo.
Por lo que puedo deducir, podra tratarse algo respecto a la virtualizacion
?
por esta linea: Pid: 22979, comm: postgres Tainted: G

Gracias.