sshd Not tainted 3.13.0-68-generic

Several times I've got the same kernel error.

Nov 22 03:51:37 vip43 kernel: [122234.944301] general protection fault: 0000 [#1] SMP
Nov 22 03:51:37 vip43 kernel: [122234.944645] Modules linked in: ip6table_filter ip6_tables ipt_REJECT xt_tcpudp xt_conntrack iptable_filter iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle ip_tables x_tables quota_v2 quota_tree gpio_ich coretemp kvm joydev shpchp video lpc_ich serio_raw x38_edac edac_core mac_hid lp parport raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 hid_generic e1000e raid0 psmouse ahci ptp usbhid libahci multipath pps_core hid linear
Nov 22 03:51:37 vip43 kernel: [122234.947987] CPU: 2 PID: 11435 Comm: sshd Not tainted 3.13.0-68-generic #111-Ubuntu
Nov 22 03:51:37 vip43 kernel: [122234.947987] Hardware name: Supermicro X7SBT/X7SBT, BIOS 1.30 07/28/2009
Nov 22 03:51:37 vip43 kernel: [122234.947987] task: ffff8801a59b6000 ti: ffff8800caa42000 task.ti: ffff8800caa42000
Nov 22 03:51:37 vip43 kernel: [122234.947987] RIP: 0010:[<ffffffff811741a5>] [<ffffffff811741a5>] vma_interval_tree_remove+0x1d5/0x240
Nov 22 03:51:37 vip43 kernel: [122234.947987] RSP: 0018:ffff8800caa43d88 EFLAGS: 00010206
Nov 22 03:51:37 vip43 kernel: [122234.947987] RAX: ffff8801a546af58 RBX: ffff8801a45a8d00 RCX: 0002000000000000
Nov 22 03:51:37 vip43 kernel: [122234.947987] RDX: ffff8801a546af58 RSI: ffff8801a6293040 RDI: ffff8801a283e780
Nov 22 03:51:37 vip43 kernel: [122234.947987] RBP: ffff8800caa43d90 R08: 00007fc4df051000 R09: 0000000000000001
Nov 22 03:51:37 vip43 kernel: [122234.947987] R10: ffff8801a283e7d8 R11: ffffea0000d6fc00 R12: ffff8801a283e780
Nov 22 03:51:37 vip43 kernel: [122234.947987] R13: ffff8801a6293058 R14: ffff8801a6293020 R15: ffff8801a283e780
Nov 22 03:51:37 vip43 kernel: [122234.947987] FS: 0000000000000000(0000) GS:ffff8801afd00000(0000) knlGS:0000000000000000
Nov 22 03:51:37 vip43 kernel: [122234.947987] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 22 03:51:37 vip43 kernel: [122234.947987] CR2: 00007fc4df084280 CR3: 0000000036611000 CR4: 00000000000407e0
Nov 22 03:51:37 vip43 kernel: [122234.947987] Stack:
Nov 22 03:51:37 vip43 kernel: [122234.947987] ffffffff8117e69d ffff8800caa43dc0 ffffffff8117ee10 ffff8801a283e480
Nov 22 03:51:37 vip43 kernel: [122234.947987] 00007fc4db37c000 0000000000000000 ffff8800caa43e18 ffff8800caa43e00
Nov 22 03:51:37 vip43 kernel: [122234.947987] ffffffff81176ff0 0000000000000000 0000000000000000 ffff880035dbf800
Nov 22 03:51:37 vip43 kernel: [122234.947987] Call Trace:
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff8117e69d>] ? __remove_shared_vm_struct+0x3d/0x60
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff8117ee10>] unlink_file_vma+0x40/0x60
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff81176ff0>] free_pgtables+0xb0/0x120
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff81181b06>] exit_mmap+0xb6/0x170
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff8106489c>] mmput+0x5c/0x120
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff81069d7c>] do_exit+0x26c/0xa50
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff8106a5df>] do_group_exit+0x3f/0xa0
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff8106a654>] SyS_exit_group+0x14/0x20
Nov 22 03:51:37 vip43 kernel: [122234.947987] [<ffffffff81734cdd>] system_call_fastpath+0x1a/0x1f
Nov 22 03:51:37 vip43 kernel: [122234.947987] Code: 06 e9 51 ff ff ff 48 89 41 10 e9 48 ff ff ff 48 8b 57 58 48 89 d0 48 83 e0 fc 74 5c 4c 3b 50 10 74 4a 48 89 48 08 48 85 c9 74 52 <48> 89 11 45 31 c0 e9 37 ff ff ff 48 8b 47 58 48 89 02 48 83 e0
Nov 22 03:51:37 vip43 kernel: [122234.947987] RIP [<ffffffff811741a5>] vma_interval_tree_remove+0x1d5/0x240
Nov 22 03:51:37 vip43 kernel: [122234.947987] RSP <ffff8800caa43d88>
Nov 22 03:51:37 vip43 kernel: [122235.265813] ---[ end trace f82fd6962ba717f3 ]---
Nov 22 03:51:37 vip43 kernel: [122235.273256] Fixing recursive fault but reboot is needed!

Nov 23 19:22:37 vip43 kernel: [14164.164818] general protection fault: 0000 [#1] SMP
Nov 23 19:22:37 vip43 kernel: [14164.165132] Modules linked in: nf_nat_ftp nf_conntrack_ftp ip6table_filter ip6_tables ipt_REJECT xt_tcpudp xt_conntrack iptable_filter iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle ip_tables x_tables quota_v2 quota_tree gpio_ich coretemp joydev kvm lpc_ich serio_raw shpchp lp parport video x38_edac mac_hid edac_core raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq hid_generic raid1 ahci raid0 libahci e1000e psmouse ptp multipath usbhid pps_core hid linear
Nov 23 19:22:37 vip43 kernel: [14164.168137] CPU: 3 PID: 31114 Comm: sshd Not tainted 3.13.0-68-generic #111-Ubuntu
Nov 23 19:22:37 vip43 kernel: [14164.168137] Hardware name: Supermicro X7SBT/X7SBT, BIOS 1.30 07/28/2009
Nov 23 19:22:37 vip43 kernel: [14164.168137] task: ffff8801a29ae000 ti: ffff8801a548e000 task.ti: ffff8801a548e000
Nov 23 19:22:37 vip43 kernel: [14164.168137] RIP: 0010:[<ffffffff811741a5>] [<ffffffff811741a5>] vma_interval_tree_remove+0x1d5/0x240
Nov 23 19:22:37 vip43 kernel: [14164.168137] RSP: 0018:ffff8801a548fd88 EFLAGS: 00010206
Nov 23 19:22:37 vip43 kernel: [14164.168137] RAX: ffff8801a39c6118 RBX: ffff880091f94100 RCX: 0002000000000000
Nov 23 19:22:37 vip43 kernel: [14164.168137] RDX: ffff8801a39c6118 RSI: ffff8800361520e0 RDI: ffff8801a261e780
Nov 23 19:22:37 vip43 kernel: [14164.168137] RBP: ffff8801a548fd90 R08: 0000000000000000 R09: 0000000000000001
Nov 23 19:22:37 vip43 kernel: [14164.168137] R10: ffff8801a261e7d8 R11: ffffea00068e6b40 R12: ffff8801a261e780
Nov 23 19:22:37 vip43 kernel: [14164.168137] R13: ffff8800361520f8 R14: ffff8800361520c0 R15: ffff8801a261e780
Nov 23 19:22:37 vip43 kernel: [14164.168137] FS: 0000000000000000(0000) GS:ffff8801afd80000(0000) knlGS:0000000000000000
Nov 23 19:22:37 vip43 kernel: [14164.168137] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 23 19:22:37 vip43 kernel: [14164.168137] CR2: 00007fcb7b2d8314 CR3: 00000001a51b2000 CR4: 00000000000407e0
Nov 23 19:22:37 vip43 kernel: [14164.168137] Stack:
Nov 23 19:22:37 vip43 kernel: [14164.168137] ffffffff8117e69d ffff8801a548fdc0 ffffffff8117ee10 ffff8801a4895b40
Nov 23 19:22:37 vip43 kernel: [14164.168137] 00007fcb7df78000 0000000000000000 ffff8801a548fe18 ffff8801a548fe00
Nov 23 19:22:37 vip43 kernel: [14164.168137] ffffffff81176ff0 0000000000000000 0000000000000000 ffff8801a53ea300
Nov 23 19:22:37 vip43 kernel: [14164.168137] Call Trace:
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8117e69d>] ? __remove_shared_vm_struct+0x3d/0x60
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8117ee10>] unlink_file_vma+0x40/0x60
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff81176ff0>] free_pgtables+0xb0/0x120
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff81181b06>] exit_mmap+0xb6/0x170
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8106489c>] mmput+0x5c/0x120
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff81069d7c>] do_exit+0x26c/0xa50
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff811c00ee>] ? ____fput+0xe/0x10
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8108855c>] ? task_work_run+0xac/0xe0
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8106a5df>] do_group_exit+0x3f/0xa0
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8106a654>] SyS_exit_group+0x14/0x20
Nov 23 19:22:37 vip43 kernel: [14164.168137] RBP: ffff8801a548fd90 R08: 0000000000000000 R09: 0000000000000001
Nov 23 19:22:37 vip43 kernel: [14164.168137] R10: ffff8801a261e7d8 R11: ffffea00068e6b40 R12: ffff8801a261e780
Nov 23 19:22:37 vip43 kernel: [14164.168137] R13: ffff8800361520f8 R14: ffff8800361520c0 R15: ffff8801a261e780
Nov 23 19:22:37 vip43 kernel: [14164.168137] FS: 0000000000000000(0000) GS:ffff8801afd80000(0000) knlGS:0000000000000000
Nov 23 19:22:37 vip43 kernel: [14164.168137] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 23 19:22:37 vip43 kernel: [14164.168137] CR2: 00007fcb7b2d8314 CR3: 00000001a51b2000 CR4: 00000000000407e0
Nov 23 19:22:37 vip43 kernel: [14164.168137] Stack:
Nov 23 19:22:37 vip43 kernel: [14164.168137] ffffffff8117e69d ffff8801a548fdc0 ffffffff8117ee10 ffff8801a4895b40
Nov 23 19:22:37 vip43 kernel: [14164.168137] 00007fcb7df78000 0000000000000000 ffff8801a548fe18 ffff8801a548fe00
Nov 23 19:22:37 vip43 kernel: [14164.168137] ffffffff81176ff0 0000000000000000 0000000000000000 ffff8801a53ea300
Nov 23 19:22:37 vip43 kernel: [14164.168137] Call Trace:
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8117e69d>] ? __remove_shared_vm_struct+0x3d/0x60
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8117ee10>] unlink_file_vma+0x40/0x60
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff81176ff0>] free_pgtables+0xb0/0x120
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff81181b06>] exit_mmap+0xb6/0x170
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8106489c>] mmput+0x5c/0x120
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff81069d7c>] do_exit+0x26c/0xa50
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff811c00ee>] ? ____fput+0xe/0x10
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8108855c>] ? task_work_run+0xac/0xe0
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8106a5df>] do_group_exit+0x3f/0xa0
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff8106a654>] SyS_exit_group+0x14/0x20
Nov 23 19:22:37 vip43 kernel: [14164.168137] [<ffffffff81734cdd>] system_call_fastpath+0x1a/0x1f
Nov 23 19:22:37 vip43 kernel: [14164.168137] Code: 06 e9 51 ff ff ff 48 89 41 10 e9 48 ff ff ff 48 8b 57 58 48 89 d0 48 83 e0 fc 74 5c 4c 3b 50 10 74 4a 48 89 48 08 48 85 c9 74 52 <48> 89 11 45 31 c0 e9 37 ff ff ff 48 8b 47 58 48 89 02 48 83 e0
Nov 23 19:22:37 vip43 kernel: [14164.168137] RIP [<ffffffff811741a5>] vma_interval_tree_remove+0x1d5/0x240
Nov 23 19:22:37 vip43 kernel: [14164.168137] RSP <ffff8801a548fd88>
Nov 23 19:22:37 vip43 kernel: [14164.607416] ---[ end trace cda615a910379399 ]---
Nov 23 19:22:37 vip43 kernel: [14164.614822] Fixing recursive fault but reboot is needed!