disksafe[ERROR]: Disk FALCON__IPSTOR_DISK_____6000d77ab0b3c9dd982b0000544656ba doesn't exist

disksafe[ERROR]: Disk FALCON__IPSTOR_DISK_____6000d7770c66f0ce39140000544656e4 doesn't exist

disksafe[ERROR]: Disk FALCON__IPSTOR_DISK_____6000d773ab06df7b6416000054465714 doesn't exist

 connection1:0: ping timeout of 5 secs expired, recv timeout 5, last rx 4475163753, last ping 4475172817, now 4475178296
 connection4:0: ping timeout of 5 secs expired, recv timeout 5, last rx 4548446239, last ping 4548459522, now 4548464624
BUG: unable to handle kernel NULL pointer dereference at 0000000000000074
IP: [<ffffffff8115c39c>] valid_swaphandles+0x6c/0x150
PGD 14cd3067 PUD 14d8d067 PMD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/virtual/block/disksafe!sdv1/dev
CPU 0
Modules linked in: dsf(U) nfs lockd fscache auth_rpcgss nfs_acl sunrpc autofs4 8021q garp stp llc ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb3i libcxgbi cxgb3 mdio ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr ipv6 iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ext3 jbd ppdev microcode vmware_balloon vmxnet3 parport_pc parport sg i2c_piix4 i2c_core shpchp ext4 jbd2 mbcache sd_mod crc_t10dif sr_mod cdrom vmw_pvscsi pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: dsf]

Pid: 20289, comm: bash Not tainted 2.6.32-431.el6.x86_64 #1 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform
RIP: 0010:[<ffffffff8115c39c>]  [<ffffffff8115c39c>] valid_swaphandles+0x6c/0x150
RSP: 0000:ffff880014d97c08  EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0040000000086b20 RCX: 0000000000000003
RDX: 0000000000000000 RSI: ffff880014d97c70 RDI: ffffffff81fbb790
RBP: ffff880014d97c48 R08: ffff880014d8d068 R09: 0000000000000028
R10: ffff880014d7e0c0 R11: 00007fff31a51450 R12: 0040000000086b20
R13: 0040000000086b20 R14: 0000000000000000 R15: ffff880014d97c70
FS:  00007f0093604700(0000) GS:ffff880002200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000074 CR3: 0000000001d43000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Process bash (pid: 20289, threadinfo ffff880014d96000, task ffff88001960b500)
Stack:
 ffff88001e45d980 0000000000000003 00000000000000d0 ffff8800110c0b70
<d> 00000000000200da ffff8800110c0b70 0000000001a007b8 0000000001a007b8
<d> ffff880014d97ca8 ffffffff8115b90c ffff8800110c0b70 0040000000086b20
Call Trace:
 [<ffffffff8115b90c>] swapin_readahead+0x2c/0xc0
 [<ffffffff81136951>] ? lru_cache_add_lru+0x21/0x40
 [<ffffffff8114ac3d>] handle_pte_fault+0x6dd/0xb00
 [<ffffffff81054839>] ? __wake_up_common+0x59/0x90
 [<ffffffff8108926d>] ? __sigqueue_free+0x3d/0x50
 [<ffffffff8108c982>] ? __dequeue_signal+0x102/0x200
 [<ffffffff8114b28a>] handle_mm_fault+0x22a/0x300
 [<ffffffff81335aae>] ? do_output_char+0x1de/0x210
 [<ffffffff8104a8d8>] __do_page_fault+0x138/0x480
 [<ffffffff81288dfc>] ? rb_erase+0x1bc/0x310
 [<ffffffff810097cc>] ? __switch_to+0x1ac/0x320
 [<ffffffff81527910>] ? thread_return+0x4e/0x76e
 [<ffffffff810893b1>] ? do_sigaction+0x91/0x1d0
 [<ffffffff810e1e5e>] ? __audit_syscall_exit+0x25e/0x290
 [<ffffffff8152d45e>] do_page_fault+0x3e/0xa0
 [<ffffffff8152a815>] page_fault+0x25/0x30
Code: 3b 48 c7 c7 90 b7 fb 81 4d 89 e5 4c 8b 34 c5 a0 b7 fb 81 89 4d c8 49 d3 ed 49 d3 e5 4d 85 ed 49 0f 45 dd e8 57 df 3c 00 8b 4d c8 <41> 8b 56 74 b8 01 00 00 00 d3 e0 48 98 49 01 c5 49 39 d5 4c 0f
RIP  [<ffffffff8115c39c>] valid_swaphandles+0x6c/0x150
 RSP <ffff880014d97c08>
CR2: 0000000000000074