System "vxdmp" module(vxdmp:dmp_update_stats)

Issue

• crash at Veritas dmp_update_stats
• NULL pointer dereference in vxdmp:dmp_update_stats() function

Unable to handle kernel paging request at ffff80d078079e40
RIP:  [<ffffffff8863d679>] :vxdmp:dmp_update_stats+0x203/0x66e                   
PGD 0 
Oops: 0002 [1] SMP 
last sysfs file: /devices/pci0000:00/0000:00:1c.2/0000:03:00.1/irq
CPU 8 
Modules linked in: nfs lockd fscache nfs_acl sunrpc mptctl mptbase gab(PU) llt(PU) autofs4 ipmi_devintf ipmi_si ipmi_msghandler dmpalua(PU) vxspec(PFU) vxio(PFU) vxdmp(PU) bonding ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi scsi_transport_iscsi vxportal(PFU) fdd(PFU) vxfs(PU) dm_mirror dm_multipath scsi_dh video hwmon backlight sbs i2c_ec i2c_core button battery asus_acpi acpi_memhotplug ac parport_pc lp parport sg pcspkr bnx2 hpilo e1000e serio_raw dm_raid45 dm_message dm_region_hash dm_log dm_mod dm_mem_cache lpfc scsi_transport_fc shpchp cciss sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
Pid: 20052, comm: dmp_daemon Tainted: PF     2.6.18-128.1.14.el5 #1
RIP: 0010:[<ffffffff8863d679>]  [<ffffffff8863d679>] :vxdmp:dmp_update_stats+0x203/0x66e
RSP: 0018:ffff81020f717e60  EFLAGS: 00010286
RAX: ffff81041f980000 RBX: 0000000000002648 RCX: ffffffff89eeb5fc
RDX: ffff81021058a000 RSI: 00000000000027ff RDI: ffffffcc586f9e40
RBP: 0000000000001080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: ffff810052526000 R12: 0000000000000001
R13: ffff810052526000 R14: 00000000000027ff R15: ffff810131ac5280
FS:  00002ba460dc4240(0000) GS:ffff8101077a0140(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff80d078079e40 CR3: 00000002041b7000 CR4: 00000000000006e0
Process dmp_daemon (pid: 20052, threadinfo ffff81020f716000, task ffff810212ebe0c0)
Stack:  ffff81020f717e60 ffff8100dbf89000 ffff8101652e5000 ffff810131ac5c80
 0000000000000021 ffffffff80016179 ffff810203600000 0000000000000021
 0000000000001080 00000000000003af ffff81021fe028c0 000000000000010f
Call Trace:
 [<ffffffff80016179>] __bitmap_weight+0x65/0x76
 [<ffffffff8863f0bb>] :vxdmp:dmp_process_stats+0x73b/0x91d
 [<ffffffff8863e980>] :vxdmp:dmp_process_stats+0x0/0x91d
 [<ffffffff88642c72>] :vxdmp:dmp_daemons_loop+0x1a0/0x1b8
 [<ffffffff8005dfb1>] child_rip+0xa/0x11
 [<ffffffff88642ad2>] :vxdmp:dmp_daemons_loop+0x0/0x1b8
 [<ffffffff8005dfa7>] child_rip+0x0/0x11

Code: 48 89 14 38 4c 89 c0 48 03 44 24 30 f6 40 22 01 74 27 66 83 
RIP  [<ffffffff8863d679>] :vxdmp:dmp_update_stats+0x203/0x66e
 RSP <ffff81020f717e60>