soft lockup due to abuse of real-time scheduler class

Issue

• System panicked with this message:

BUG: soft lockup - CPU#5 stuck for 64s! [oracle:21300]
Modules linked in: oracleacfs(P)(U) oracleadvm(P)(U) oracleoks(P)(U) filepath(U) autofs4 nfs lockd fscache auth_rpcgss nfs_acl sunrpc vsock(U) ipv6 ext3 jbd dm_round_robin dm_multipath ppdev microcode vmware_balloon parport_pc parport vmci(U) i2c_piix4 i2c_core sg shpchp ext4 jbd2 mbcache sd_mod crc_t10dif sr_mod cdrom vmxnet3 mptsas mptscsih mptbase scsi_transport_sas vmw_pvscsi pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: speedstep_lib]
CPU 5 
Modules linked in: oracleacfs(P)(U) oracleadvm(P)(U) oracleoks(P)(U) filepath(U) autofs4 nfs lockd fscache auth_rpcgss nfs_acl sunrpc vsock(U) ipv6 ext3 jbd dm_round_robin dm_multipath ppdev microcode vmware_balloon parport_pc parport vmci(U) i2c_piix4 i2c_core sg shpchp ext4 jbd2 mbcache sd_mod crc_t10dif sr_mod cdrom vmxnet3 mptsas mptscsih mptbase scsi_transport_sas vmw_pvscsi pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: speedstep_lib]

Pid: 21300, comm: oracle Tainted: P           ---------------    2.6.32-504.el6.x86_64 #1 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform
RIP: 0033:[<0000000000b6679e>]  [<0000000000b6679e>] 0xb6679e
RSP: 002b:00007fff2acda850  EFLAGS: 00010287
RAX: 0000000000000000 RBX: 00007fff2acda870 RCX: 000000019b426578
RDX: 0000000000000000 RSI: 00007fff2acda8c8 RDI: 00000001991dfee0
RBP: ffffffff8100bb8e R08: 0000000000000002 R09: 0000000000000c24
R10: 000000019cf56138 R11: 0000000000000000 R12: 00007fff2acda870
R13: 00007fff2acda8c8 R14: 0000000000000103 R15: 00000000000007ce
FS:  00007faecb319700(0000) GS:ffff880061aa0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000360dc10970 CR3: 0000000f302bf000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process oracle (pid: 21300, threadinfo ffff880f2a072000, task ffff88101bb76ae0)

Call Trace:
Kernel panic - not syncing: softlockup: hung tasks
Pid: 21300, comm: oracle Tainted: P           ---------------    2.6.32-504.el6.x86_64 #1
Call Trace:
 <IRQ>  [<ffffffff815292bc>] ? panic+0xa7/0x16f
 [<ffffffff810ea0c0>] ? watchdog_timer_fn+0x0/0x1e0
 [<ffffffff810ea28a>] ? watchdog_timer_fn+0x1ca/0x1e0
 [<ffffffff810a338e>] ? __run_hrtimer+0x8e/0x1a0
 [<ffffffff810aa78f>] ? ktime_get_update_offsets+0x4f/0xd0
 [<ffffffff810a36f6>] ? hrtimer_interrupt+0xe6/0x260
 [<ffffffff810342fd>] ? local_apic_timer_interrupt+0x3d/0x70
 [<ffffffff81533c05>] ? smp_apic_timer_interrupt+0x45/0x60
 [<ffffffff8100bb93>] ? apic_timer_interrupt+0x13/0x20
 <EOI>