Oct  2 18:27:02 vana-031 kernel: BUG: unable to handle kernel paging request at ffff88006564b000
Oct  2 18:27:02 vana-031 kernel: IP: [<ffffffff812a8036>] memcpy+0x6/0x110
Oct  2 18:27:02 vana-031 kernel: PGD 1c0d067 PUD 104e0c067 PMD 104ce0067 PTE 0
Oct  2 18:27:02 vana-031 kernel: Oops: 0002 [#1] SMP 
Oct  2 18:27:02 vana-031 kernel: Modules linked in: ebt_ip6 tun ebt_ip ebtable_filter ebtables arptable_filter arp_tables bridge xen_pciback xen_gntalloc nfsd auth_rpcgss nfsv3 nfs_acl nfs fscache lockd sunrpc 8021q garp stp llc bond
ing ipv6 xen_acpi_processor blktap xen_netback xen_blkback xen_gntdev xen_evtchn xenfs xen_privcmd iTCO_wdt iTCO_vendor_support dcdbas coretemp freq_table mperf crc32_pclmul crc32c_intel ghash_clmulni_intel microcode pcspkr ses enclosure
 sg ipmi_devintf ipmi_si ipmi_msghandler joydev i2c_i801 lpc_ich shpchp ixgbe mdio igb hwmon ptp pps_core ioatdma dca ext4 jbd2 mbcache raid1 sd_mod crc_t10dif aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 mpt2sas sc
si_transport_sas raid_class ahci libahci wmi ttm drm_kms_helper dm_mirror dm_region_hash dm_log dm_mod
Oct  2 18:27:02 vana-031 kernel: CPU: 18 PID: 24625 Comm: tapdisk Not tainted 3.10.68-11.el6.centos.alt.x86_64 #1
Oct  2 18:27:02 vana-031 kernel: Hardware name: Dell Inc. PowerEdge C6220 II/09N44V, BIOS 2.6.0 10/09/2014
Oct  2 18:27:02 vana-031 kernel: task: ffff880004ed2780 ti: ffff880024266000 task.ti: ffff880024266000
Oct  2 18:27:02 vana-031 kernel: RIP: e030:[<ffffffff812a8036>]  [<ffffffff812a8036>] memcpy+0x6/0x110
Oct  2 18:27:02 vana-031 kernel: RSP: e02b:ffff880024267c90  EFLAGS: 00010202
Oct  2 18:27:02 vana-031 kernel: RAX: ffff88006564b000 RBX: ffff88004104f830 RCX: 0000000000001000
Oct  2 18:27:02 vana-031 kernel: RDX: 0000000000001000 RSI: ffff88007c0ca000 RDI: ffff88006564b000
Oct  2 18:27:02 vana-031 kernel: RBP: ffff880024267cd8 R08: 0000000000000000 R09: 0000000000000000
Oct  2 18:27:02 vana-031 kernel: R10: 0000000000000000 R11: ffff880024267eb8 R12: 0000000000000001
Oct  2 18:27:02 vana-031 kernel: R13: ffff880000000000 R14: 6db6db6db6db6db7 R15: 0000160000000000
Oct  2 18:27:02 vana-031 kernel: FS:  00007f62c755e740(0000) GS:ffff880101440000(0000) knlGS:ffff8801014e0000
Oct  2 18:27:02 vana-031 kernel: CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
Oct  2 18:27:02 vana-031 kernel: CR2: ffff88006564b000 CR3: 000000003533b000 CR4: 0000000000042660
Oct  2 18:27:02 vana-031 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct  2 18:27:02 vana-031 kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Oct  2 18:27:02 vana-031 kernel: Stack:
Oct  2 18:27:02 vana-031 kernel: ffffffffa030f42a 0000000000000000 00000000664b4800 ffff880024267cc8
Oct  2 18:27:02 vana-031 kernel: ffff88004104f830 ffff8800664b4800 ffff8800664b4800 0000000000000000
Oct  2 18:27:02 vana-031 kernel: ffff8800664b4820 ffff880024267cf8 ffffffffa030e1f7 ffff88004104f830
Oct  2 18:27:02 vana-031 kernel: Call Trace:
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030f42a>] ? blktap_request_bounce+0xda/0x100 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030e1f7>] blktap_ring_unmap_request+0x67/0x90 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030f072>] blktap_device_end_request+0x32/0x90 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030dca9>] blktap_ring_ioctl+0x1f9/0x370 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffff810631a1>] ? SyS_time+0x21/0x60
Oct  2 18:27:02 vana-031 kernel: [<ffffffff81017879>] ? emulate_vsyscall+0x329/0x3d0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8104a67d>] ? __bad_area_nosemaphore+0x21d/0x230
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8104a6a3>] ? bad_area_nosemaphore+0x13/0x20
Oct  2 18:27:02 vana-031 kernel: [<ffffffff815fe166>] ? __do_page_fault+0x3c6/0x500
Oct  2 18:27:02 vana-031 kernel: [<ffffffff811ac569>] do_vfs_ioctl+0x89/0x350
Oct  2 18:27:02 vana-031 kernel: [<ffffffff811ac8d1>] SyS_ioctl+0xa1/0xb0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff810e0de6>] ? __audit_syscall_exit+0x246/0x2f0
Oct  2 18:27:02 vana-031 kernel: Code: 0f 94 c0 48 83 c4 08 0f b6 c0 5b c9 c3 0f 1f 84 00 00 00 00 00 e8 6b f8 ff ff 80 7b 25 00 74 c8 eb d3 90 90 90 48 89 f8 48 89 d1 <f3> a4 c3 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 20 4c 8b 06 4c 8b 
Oct  2 18:27:02 vana-031 kernel: RIP  [<ffffffff812a8036>] memcpy+0x6/0x110
Oct  2 18:27:02 vana-031 kernel: RSP <ffff880024267c90>
Oct  2 18:27:02 vana-031 kernel: CR2: ffff88006564b000
Oct  2 18:27:02 vana-031 kernel: ---[ end trace 1b9afc6b3c348034 ]---
Oct  2 18:27:02 vana-031 kernel: BUG: unable to handle kernel paging request at ffff88006564b000
Oct  2 18:27:02 vana-031 kernel: IP: [<ffffffff812a8036>] memcpy+0x6/0x110
Oct  2 18:27:02 vana-031 kernel: PGD 1c0d067 PUD 104e0c067 PMD 104ce0067 PTE 0
Oct  2 18:27:02 vana-031 kernel: Oops: 0002 [#2] SMP 
Oct  2 18:27:02 vana-031 kernel: Modules linked in: ebt_ip6 tun ebt_ip ebtable_filter ebtables arptable_filter arp_tables bridge xen_pciback xen_gntalloc nfsd auth_rpcgss nfsv3 nfs_acl nfs fscache lockd sunrpc 8021q garp stp llc bonding ipv6 xen_acpi_processor blktap xen_netback xen_blkback xen_gntdev xen_evtchn xenfs xen_privcmd iTCO_wdt iTCO_vendor_support dcdbas coretemp freq_table mperf crc32_pclmul crc32c_intel ghash_clmulni_intel microcode pcspkr ses enclosure sg ipmi_devintf ipmi_si ipmi_msghandler joydev i2c_i801 lpc_ich shpchp ixgbe mdio igb hwmon ptp pps_core ioatdma dca ext4 jbd2 mbcache raid1 sd_mod crc_t10dif aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 mpt2sas scsi_transport_sas raid_class ahci libahci wmi ttm drm_kms_helper dm_mirror dm_region_hash dm_log dm_mod
Oct  2 18:27:02 vana-031 kernel: CPU: 18 PID: 24625 Comm: tapdisk Tainted: G      D      3.10.68-11.el6.centos.alt.x86_64 #1
Oct  2 18:27:02 vana-031 kernel: Hardware name: Dell Inc. PowerEdge C6220 II/09N44V, BIOS 2.6.0 10/09/2014
Oct  2 18:27:02 vana-031 kernel: task: ffff880004ed2780 ti: ffff880024266000 task.ti: ffff880024266000
Oct  2 18:27:02 vana-031 kernel: RIP: e030:[<ffffffff812a8036>]  [<ffffffff812a8036>] memcpy+0x6/0x110
Oct  2 18:27:02 vana-031 kernel: RSP: e02b:ffff880024267780  EFLAGS: 00010202
Oct  2 18:27:02 vana-031 kernel: RAX: ffff88006564b000 RBX: ffff88004104f830 RCX: 0000000000001000
Oct  2 18:27:02 vana-031 kernel: RDX: 0000000000001000 RSI: ffff88007c0ca000 RDI: ffff88006564b000
Oct  2 18:27:02 vana-031 kernel: RBP: ffff8800242677c8 R08: ffff880004ed2f58 R09: 0000000000000000
Oct  2 18:27:02 vana-031 kernel: R10: ffff880105139e00 R11: ffffea0000087338 R12: 0000000000000001
Oct  2 18:27:02 vana-031 kernel: R13: ffff880000000000 R14: 6db6db6db6db6db7 R15: 0000160000000000
Oct  2 18:27:02 vana-031 kernel: FS:  0000000000000000(0000) GS:ffff880101440000(0000) knlGS:ffff8801014e0000
Oct  2 18:27:02 vana-031 kernel: CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
Oct  2 18:27:02 vana-031 kernel: CR2: ffff88006564b000 CR3: 0000000001c0c000 CR4: 0000000000042660
Oct  2 18:27:02 vana-031 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct  2 18:27:02 vana-031 kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Oct  2 18:27:02 vana-031 kernel: Stack:
Oct  2 18:27:02 vana-031 kernel: ffffffffa030f42a 0000000000000030 00000000014562d0 0000000000000000
Oct  2 18:27:02 vana-031 kernel: ffff88004104f830 ffff8800664b4800 ffff8800664b4800 00000000fffffffb
Oct  2 18:27:02 vana-031 kernel: 0000000000000002 ffff8800242677e8 ffffffffa030e1f7 ffff88004104f830
Oct  2 18:27:02 vana-031 kernel: Call Trace:
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030f42a>] ? blktap_request_bounce+0xda/0x100 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030e1f7>] blktap_ring_unmap_request+0x67/0x90 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030f072>] blktap_device_end_request+0x32/0x90 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030d7d6>] blktap_ring_vm_close+0x86/0xe0 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8115e913>] remove_vma+0x33/0x70
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8115ea3c>] exit_mmap+0xec/0x170
Oct  2 18:27:02 vana-031 kernel: [<ffffffff810594dc>] mmput+0x6c/0x130
Oct  2 18:27:02 vana-031 kernel: [<ffffffff81061a5f>] exit_mm+0x13f/0x1a0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff810e0b2b>] ? __audit_free+0x1cb/0x240
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8100ab69>] ? xen_irq_enable_direct_reloc+0x4/0x4
Oct  2 18:27:02 vana-031 kernel: [<ffffffff81061c28>] do_exit+0x168/0x480
Oct  2 18:27:02 vana-031 kernel: [<ffffffff815fb1d1>] oops_end+0xb1/0x100
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8104a38e>] no_context+0x11e/0x1f0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8100688f>] ? pte_mfn_to_pfn+0x7f/0x110
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8104a58d>] __bad_area_nosemaphore+0x12d/0x230
Oct  2 18:27:02 vana-031 kernel: [<ffffffff81005269>] ? __raw_callee_save_xen_pmd_val+0x11/0x1e
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8104a6a3>] bad_area_nosemaphore+0x13/0x20
Oct  2 18:27:02 vana-031 kernel: [<ffffffff815fe166>] __do_page_fault+0x3c6/0x500
Oct  2 18:27:02 vana-031 kernel: [<ffffffff811ad320>] ? __pollwait+0xf0/0xf0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff811ad320>] ? __pollwait+0xf0/0xf0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff811ad320>] ? __pollwait+0xf0/0xf0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff815fe2ae>] do_page_fault+0xe/0x10
Oct  2 18:27:02 vana-031 kernel: [<ffffffff815fa578>] page_fault+0x28/0x30
Oct  2 18:27:02 vana-031 kernel: [<ffffffff812a8036>] ? memcpy+0x6/0x110
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030f42a>] ? blktap_request_bounce+0xda/0x100 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030e1f7>] blktap_ring_unmap_request+0x67/0x90 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030f072>] blktap_device_end_request+0x32/0x90 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffffa030dca9>] blktap_ring_ioctl+0x1f9/0x370 [blktap]
Oct  2 18:27:02 vana-031 kernel: [<ffffffff810631a1>] ? SyS_time+0x21/0x60
Oct  2 18:27:02 vana-031 kernel: [<ffffffff81017879>] ? emulate_vsyscall+0x329/0x3d0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8104a67d>] ? __bad_area_nosemaphore+0x21d/0x230
Oct  2 18:27:02 vana-031 kernel: [<ffffffff8104a6a3>] ? bad_area_nosemaphore+0x13/0x20
Oct  2 18:27:02 vana-031 kernel: [<ffffffff815fe166>] ? __do_page_fault+0x3c6/0x500
Oct  2 18:27:02 vana-031 kernel: [<ffffffff811ac569>] do_vfs_ioctl+0x89/0x350
Oct  2 18:27:02 vana-031 kernel: [<ffffffff811ac8d1>] SyS_ioctl+0xa1/0xb0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff810e0de6>] ? __audit_syscall_exit+0x246/0x2f0
Oct  2 18:27:02 vana-031 kernel: [<ffffffff81602d99>] system_call_fastpath+0x16/0x1b
Oct  2 18:27:02 vana-031 kernel: Code: 0f 94 c0 48 83 c4 08 0f b6 c0 5b c9 c3 0f 1f 84 00 00 00 00 00 e8 6b f8 ff ff 80 7b 25 00 74 c8 eb d3 90 90 90 48 89 f8 48 89 d1 <f3> a4 c3 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 20 4c 8b 06 4c 8b 
Oct  2 18:27:02 vana-031 kernel: RIP  [<ffffffff812a8036>] memcpy+0x6/0x110
Oct  2 18:27:02 vana-031 kernel: RSP <ffff880024267780>
Oct  2 18:27:02 vana-031 kernel: CR2: ffff88006564b000
Oct  2 18:27:02 vana-031 kernel: ---[ end trace 1b9afc6b3c348035 ]---
Oct  2 18:27:02 vana-031 kernel: Fixing recursive fault but reboot is needed!