Сервер через разное время перестает отвечать по ssh и прочим запросам, в kern.log такая ошибка:
kern.log, syslog
Jul 12 14:02:09 user kernel: [328866.431527] apport[3620]: segfault at 518a8d18 ip 0000000000594321 sp 00000000518a8d20 error 6 in python3.5[400000+3aa000]
Jul 12 14:02:09 user kernel: [328866.431555] Process 3620(apport) has RLIMIT_CORE set to 1
Jul 12 14:02:09 user kernel: [328866.431558] Aborting core
Jul 12 14:02:17 user kernel: [328873.680673] stack segment: 0000 [#1] SMP
Jul 12 14:02:17 user kernel: [328873.680715] Modules linked in: arc4 md4 nls_utf8 cifs ccm fscache xt_multiport xt_nat xt_tcpudp veth ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables xt_conntrack x_tables nf_nat nf_conntrack br_netfilter bridge stp llc aufs sctp overlay ppdev serio_raw 8250_fintek lpc_ich parport_pc parport mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1 i915 video i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops 8139too drm 8139cp mii pata_acpi floppy fjes
Jul 12 14:02:17 user kernel: [328873.681297] CPU: 1 PID: 3636 Comm: apache2 Not tainted 4.4.0-131-generic #157-Ubuntu
Jul 12 14:02:17 user kernel: [328873.681337] Hardware name: Biostar 945GZ Micro 775 SE/945GZ Micro 775 SE, BIOS 6.00 PG 01/23/2007
Jul 12 14:02:17 user kernel: [328873.681382] task: ffff8800776e3fc0 ti: ffff880067014000 task.ti: ffff880067014000
Jul 12 14:02:17 user kernel: [328873.681420] RIP: 0010:[] [] anon_vma_interval_tree_remove+0x18d/0x250
Jul 12 14:02:17 user kernel: [328873.681475] RSP: 0018:ffff880067017b78 EFLAGS: 00010246
Jul 12 14:02:17 user kernel: [328873.681502] RAX: 0000000000000000 RBX: ffff880013b36700 RCX: 0000000000000000
Jul 12 14:02:17 user kernel: [328873.681538] RDX: 0000000000000001 RSI: ffff880017b62fe0 RDI: ffff880013b36700
Jul 12 14:02:17 user kernel: [328873.681574] RBP: ffff880067017b78 R08: 0000000000000000 R09: 0000000100400027
Jul 12 14:02:17 user kernel: [328873.681610] R10: ffff88001c89ca80 R11: ffff880013b36720 R12: ffff880017b62fa0
Jul 12 14:02:17 user kernel: [328873.681646] R13: ffff8800783f7770 R14: ffff8800783f7780 R15: ffff880017b62fa0
Jul 12 14:02:17 user kernel: [328873.681684] FS: 0000000000000000(0000) GS:ffff88007fc80000(0000) knlGS:0000000000000000
Jul 12 14:02:17 user kernel: [328873.681724] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 12 14:02:17 user kernel: [328873.681754] CR2: 00007f73ed7f1f48 CR3: 0000000001e0a000 CR4: 0000000000000670
Jul 12 14:02:17 user kernel: [328873.681791] Stack:
Jul 12 14:02:17 user kernel: [328873.681802] ffff880067017bc0 ffffffff811d3139 00005560febbdfff ffff8800783f7708
Jul 12 14:02:17 user kernel: [328873.681845] ffff8800137b33e8 0000556100431000 0000000000000000 ffff880067017c18
Jul 12 14:02:17 user kernel: [328873.681887] ffff8800783f7708 ffff880067017c00 ffffffff811c4a11 0000000000000000
Jul 12 14:02:17 user kernel: [328873.681928] Call Trace:
Jul 12 14:02:17 user kernel: [328873.681946] [] unlink_anon_vmas+0xb9/0x1f0
Jul 12 14:02:17 user kernel: [328873.681977] [] free_pgtables+0xa1/0x120
Jul 12 14:02:17 user kernel: [328873.682006] [] exit_mmap+0xc1/0x170
Jul 12 14:02:17 user kernel: [328873.682035] [] mmput+0x57/0x130
Jul 12 14:02:17 user kernel: [328873.682061] [] do_exit+0x27a/0xb00
Jul 12 14:02:17 user kernel: [328873.682088] [] do_group_exit+0x43/0xb0
Jul 12 14:02:17 user kernel: [328873.682117] [] get_signal+0x294/0x600
Jul 12 14:02:17 user kernel: [328873.682147] [] do_signal+0x37/0x6f0
Jul 12 14:02:17 user kernel: [328873.682175] [] ? __fpu__restore_sig+0x84/0x4a0
Jul 12 14:02:17 user kernel: [328873.682207] [] ? group_send_sig_info+0x35/0x40
Jul 12 14:02:17 user kernel: [328873.682239] [] ? SYSC_kill+0x10f/0x1c0
Jul 12 14:02:17 user kernel: [328873.682268] [] ? dput+0x34/0x230
Jul 12 14:02:17 user kernel: [328873.682295] [] exit_to_usermode_loop+0x8c/0xd0
Jul 12 14:02:17 user kernel: [328873.682327] [] syscall_return_slowpath+0x4e/0x60
Jul 12 14:02:17 user kernel: [328873.682361] [] int_ret_from_sys_call+0x25/0x9f
Jul 12 14:02:17 user kernel: [328873.683525] Code: 48 85 c9 74 0b 48 8b 49 18 48 39 ca 48 0f 42 d1 48 39 50 18 75 aa 4d 85 c0 74 0f 48 c7 c2 20 fe 1b 81 4c 89 c7 e8 04 79 24 00 5b <5d> c3 48 89 c3 e9 3b ff ff ff 48 8b 57 20 49 89 d0 49 83 e0 fc
Jul 12 14:02:17 user kernel: [328873.684017] RIP [] anon_vma_interval_tree_remove+0x18d/0x250
Jul 12 14:02:17 user kernel: [328873.684017] RSP
Jul 12 14:02:17 user kernel: [328873.693035] ---[ end trace cba8ddaf75a598e2 ]---
Jul 12 14:02:17 user kernel: [328873.694137] Fixing recursive fault but reboot is needed!
Не хочу переустанавливать систему, может есть решение...
Простой