System crashed after "BUG: soft lockup - CPU#1 stuck for 10s! [bmserver:18286]" error.

Issue

• System crashed with following message:

BUG: soft lockup - CPU#1 stuck for 10s! [bmserver:18286]
CPU 1:
Modules linked in: kmbclow(PU) sptpci26(U) deflate zlib_deflate ccm serpent blowfish twofish ecb xcbc crypto_hash cbc md5 sha256 sha512 des aes_generic testmgr_cipher testmgr crypto_blkcipher aes_x86_64 ipcomp6 ipcomp ah6 ah4 esp6 xfrm6_esp esp4 xfrm4_esp aead crypto_algapi xfrm4_tunnel tunnel4 xfrm4_mode_tunnel xfrm4_mode_transport xfrm6_mode_transport xfrm6_mode_tunnel xfrm6_tunnel tunnel6 af_key bonding ip_conntrack_ftp ip_conntrack_netbios_ns ipt_REJECT xt_state ip_conntrack nfnetlink xt_tcpudp iptable_filter ip_tables x_tables cpufreq_ondemand acpi_cpufreq freq_table dm_mirror dm_multipath scsi_dh video hwmon backlight sbs i2c_ec button battery asus_acpi acpi_memhotplug ac ipv6 xfrm_nalgo crypto_api parport_pc lp parport joydev sr_mod cdrom sg i2c_i801 pcspkr cdc_ether usbnet i2c_core bnx2 mercd(FU) ctimod(U) dm_raid45 dm_message dm_region_hash dm_log dm_mod dm_mem_cache ata_piix libata shpchp megaraid_sas sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
Pid: 18286, comm: bmserver Tainted: PF     2.6.18-128.el5 #1
RIP: 0010:[<ffffffff8000c6f2>]  [<ffffffff8000c6f2>] __delay+0x8/0x10
RSP: 0018:ffff81024c987e20  EFLAGS: 00000287
RAX: 000000003efb5c86 RBX: ffff81027b1d2000 RCX: 000000003e7269d4
RDX: 000000000000035d RSI: ffff81027b1d2000 RDI: 00000000032d8661
RBP: 00000000ed6ff2f8 R08: 0000000000000028 R09: 000000000000003c
R10: 0000000000000000 R11: 00000000ed6ff2f8 R12: ffff81027b1d2000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff804532d0
FS:  0000000000000000(0000) GS:ffff810108d0b840(0063) knlGS:00000000ed6ffb90
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7ea919c CR3: 000000025b734000 CR4: 00000000000006e0

Call Trace:
 [<ffffffff8819a16e>] :mercd:mid_sram_check_kernel_running+0x9a/0xa6
 [<ffffffff8819a789>] :mercd:shutdown_adapter+0x15f/0x215
 [<ffffffff88199500>] :mercd:mid_brdmgr_cfg_brd_shutdown+0x17f/0x376
 [<ffffffff8819195a>] :mercd:mercd_ioctl+0x95a/0x9ab
 [<ffffffff80095b72>] recalc_sigpending+0xe/0x25
 [<ffffffff8819747a>] :mercd:mercd_compat_ioctl+0x2a/0x39
 [<ffffffff800f4b7a>] compat_sys_ioctl+0xc5/0x2b2
 [<ffffffff8006149b>] sysenter_do_call+0x1b/0x67

Kernel panic - not syncing: softlockup: hung tasks
 BUG: warning at arch/x86_64/kernel/crash.c:148/nmi_shootdown_cpus() (Tainted: PF    )

Call Trace:
 <IRQ>  [<ffffffff80079d56>] machine_crash_shutdown+0xaa/0xf3
 [<ffffffff800aaa00>] crash_kexec+0xcc/0xe8
 [<ffffffff800aa9eb>] crash_kexec+0xb7/0xe8