System panicked with 'bptm' named process.

Issue

• Panic messages:

bptm[10043]: segfault at 00002b49b7a211e8 rip 00002b49aef20695 rsp 00007fffc44f77b0 error 6
----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at mm/mmap.c:2157
invalid opcode: 0000 [1] SMP 
last sysfs file: /class/fc_host/host8/fabric_name
CPU 9 
Modules linked in: windrvr6(PFU) mptctl mptbase be2iscsi ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp bnx2i cnic ipv6 xfrm_nalgo crypto_api uio cxgb3i libcxgbi cxgb3 libiscsi_tcp libiscsi2 scsi_transport_iscsi2 scsi_transport_iscsi loop 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 sr_mod cdrom joydev st sg i7core_edac tpm_tis shpchp netxen_nic edac_mc hpilo tpm be2net pcspkr bnx2 tpm_bios 8021q serio_raw dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod usb_storage qla2xxx scsi_transport_fc ata_piix libata cciss sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
Pid: 10043, comm: bptm Tainted: PF    ---- 2.6.18-308.el5 #1
RIP: 0010:[<ffffffff80039ef8>]  [<ffffffff80039ef8>] exit_mmap+0xf1/0x104
RSP: 0018:ffff81081dbd1d08  EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff81000904eea0 RCX: ffff81083eedcce8
RDX: ffff8107c9637180 RSI: ffff810827c6f558 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000010
R10: 0000000000000292 R11: ffffffff8000ea01 R12: ffff8107c9637180
R13: ffff81081dbd1e78 R14: ffff81081dbd1ef8 R15: ffff81081dbd1f58
FS:  0000000000000000(0000) GS:ffff81011ceb04c0(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000000ec7060d0 CR3: 0000000000201000 CR4: 00000000000006a0
Process bptm (pid: 10043, threadinfo ffff81081dbd0000, task ffff81083eb7f7e0)
Stack:  0000000000000b4f ffff81000904eea0 ffff8107c9637180 ffff8107c9637208
 0000000000000001 ffffffff8003c01d 0000000004e359f0 0000000004e359f0
 ffff81083eb7f7e0 ffffffff800158e8 ffff81081dbd1d58 000000000000000b
Call Trace:
 [<ffffffff8003c01d>] mmput+0x30/0x82
 [<ffffffff800158e8>] do_exit+0x2e7/0x931
 [<ffffffff80048e75>] cpuset_exit+0x0/0x88
 [<ffffffff8002b3b8>] get_signal_to_deliver+0x465/0x494
 [<ffffffff8005a91a>] do_notify_resume+0x9c/0x7af
 [<ffffffff8009c64e>] force_sig_info+0xae/0xb9
 [<ffffffff80067555>] do_page_fault+0x7ec/0x842
 [<ffffffff8001ced7>] vma_link+0xd0/0xfd
 [<ffffffff8000e291>] do_mmap_pgoff+0x615/0x780
 [<ffffffff8002ffb6>] __up_write+0x27/0xf2
 [<ffffffff8005d6dc>] retint_signal+0x3d/0x79


Code: 0f 0b 68 fb 03 2c 80 c2 6d 08 eb fe 59 5e 5b 5d 41 5c c3 53 
RIP  [<ffffffff80039ef8>] exit_mmap+0xf1/0x104
 RSP <ffff81081dbd1d08>

• bptm - is netbakcup application process, and windriv is also from netback to confgure the FT backup