BUG: soft lockup - CPU#1 stuck for 10s! [lltdlv:3240] in /var/log/messages.

Issue

• Unplanned server reboot with following CPU soft lockups in /var/log/messages file.

kernel: BUG: soft lockup - CPU#1 stuck for 10s! [lltdlv:3240]
kernel: CPU 1:
kernel: Modules linked in: nfs fscache nfs_acl mptctl mptbase sg vxodm(PFU) vxgms(PU) vxglm(PU) gab(PU) llt(PU) ipv6 xfrm_nalgo crypto_api autofs4 vxspec(PFU) vxio(PFU) vxdmp(PU) lockd sunrpc cpufreq_ondemand acpi_cpufreq freq_table vxportal(PFU) fdd(PFU) vxfs(PU) dm_multipath scsi_dh video backlight sbs power_meter hwmon i2c_ec i2c_core dell_wmi wmi button battery asus_acpi acpi_memhotplug ac parport_pc lp parport ide_cd hpilo e1000 floppy cdrom serio_raw e752x_edac pcspkr tg3 edac_mc dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ata_piix libata shpchp cciss sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
kernel: Pid: 3240, comm: lltdlv Tainted: PF     2.6.18-194.11.4.el5 #1
kernel: RIP: 0010:[<ffffffff88c5037f>]  [<ffffffff88c5037f>] :llt:llt_deliver+0x56/0xfb
kernel: RSP: 0018:ffff8100cfe13f30  EFLAGS: 00000293
kernel: RAX: 0000000000000000 RBX: 0000000000000020 RCX: ffff81011bf08807
kernel: RDX: ffff810088bcf680 RSI: ffff81011438c370 RDI: 000000000000001b
kernel: RBP: 0000000000000246 R08: 0000000000000008 R09: ffff8101088afee8
kernel: R10: 0000000000000000 R11: ffff8100c333fb38 R12: ffff810114389228
kernel: R13: ffffffff80064b2c R14: ffffffffffffff10 R15: ffff810114389228
kernel: FS:  0000000000000000(0000) GS:ffff81011bf127c0(0000) knlGS:0000000000000000
kernel: CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
kernel: CR2: 00002aaaaaab0000 CR3: 00000000c5240000 CR4: 00000000000006e0
kernel:
kernel: Call Trace:
kernel:  [<ffffffff8005dfb1>] child_rip+0xa/0x11
kernel:  [<ffffffff88c50329>] :llt:llt_deliver+0x0/0xfb
kernel:  [<ffffffff88c4ba57>] :llt:llt_thread_init+0x0/0xe9
kernel:  [<ffffffff8005dfa7>] child_rip+0x0/0x11
kernel:
kernel: BUG: soft lockup - CPU#1 stuck for 10s! [lltdlv:3240]
kernel: CPU 1: