We removed all lxc containers and one month all works fine. But tonight host rebooted himself:
/var/log/kern.log:Apr 19 00:58:54 uashost1 kernel: [3169943.209518] watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kvm:4614]
/var/log/kern.log:Apr 19 00:58:54 uashost1 kernel: [3169943.213515] watchdog: BUG: soft lockup - CPU#6 stuck for 22s! [kvm:4559]
/var/log/kern.log:Apr 19 00:58:59 uashost1 kernel: [3169949.440823] BUG: Bad page map in process pveproxy pte:8e9a00ec46b80000 pmd:167c41067
/var/log/kern.log:Apr 19 00:58:59 uashost1 kernel: [3169949.542880] BUG: Bad page map in process pveproxy pte:00000018 pmd:167c41067
/var/log/kern.log:Apr 19 00:59:00 uashost1 kernel: [3169949.630274] BUG: Bad page map in process pveproxy pte:97a8000000000001 pmd:167c41067
/var/log/kern.log:Apr 19 00:59:00 uashost1 kernel: [3169949.752981] BUG: Bad page map in process pveproxy pte:0000003f pmd:167c41067
/var/log/kern.log:Apr 19 00:59:00 uashost1 kernel: [3169949.982423] BUG: Bad page map in process pveproxy pte:3f8e9a00dd pmd:167c41067
/var/log/kern.log:Apr 19 00:58:59 uashost1 kernel: [3169949.476987] file:libpthread-2.24.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage /var/log/kern.log:Apr 19 00:58:59 uashost1 kernel: [3169949.544096] file:libpthread-2.24.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage /var/log/kern.log:Apr 19 00:58:59 uashost1 kernel: [3169949.577672] file:libpthread-2.24.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage /var/log/kern.log:Apr 19 00:59:00 uashost1 kernel: [3169949.634654] file:libpthread-2.24.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage /var/log/kern.log:Apr 19 00:59:00 uashost1 kernel: [3169949.773916] file:libm-2.24.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage /var/log/kern.log:Apr 19 00:59:00 uashost1 kernel: [3169949.831180] file:libm-2.24.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage /var/log/kern.log:Apr 19 00:59:00 uashost1 kernel: [3169949.967678] file:libm-2.24.so fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
/var/log/kern.log:Apr 19 00:58:23 uashost1 kernel: [3169913.515376] Out of memory: Kill process 10604 (kvm) score 29 or sacrifice child
/var/log/kern.log:Apr 19 00:58:38 uashost1 kernel: [3169927.804662] Out of memory: Kill process 13052 (kvm) score 15 or sacrifice child
/var/log/kern.log:Apr 19 00:58:41 uashost1 kernel: [3169931.360680] Out of memory: Kill process 12117 (kvm) score 11 or sacrifice child
/var/log/kern.log:Apr 19 00:58:48 uashost1 kernel: [3169938.456156] Out of memory: Kill process 12985 (kvm) score 9 or sacrifice child
/var/log/kern.log:Apr 19 00:58:51 uashost1 kernel: [3169940.819610] Out of memory: Kill process 9577 (kvm) score 4 or sacrifice child
/var/log/kern.log:Apr 19 00:58:58 uashost1 kernel: [3169947.792018] Out of memory: Kill process 10875 (kvm) score 1 or sacrifice child
/var/log/syslog.1:Apr 19 00:58:23 uashost1 kernel: [3169913.515376] Out of memory: Kill process 10604 (kvm) score 29 or sacrifice child
/var/log/syslog.1:Apr 19 00:58:38 uashost1 kernel: [3169927.804662] Out of memory: Kill process 13052 (kvm) score 15 or sacrifice child
/var/log/syslog.1:Apr 19 00:58:41 uashost1 kernel: [3169931.360680] Out of memory: Kill process 12117 (kvm) score 11 or sacrifice child
/var/log/syslog.1:Apr 19 00:58:48 uashost1 kernel: [3169938.456156] Out of memory: Kill process 12985 (kvm) score 9 or sacrifice child
/var/log/syslog.1:Apr 19 00:58:51 uashost1 kernel: [3169940.819610] Out of memory: Kill process 9577 (kvm) score 4 or sacrifice child
/var/log/syslog.1:Apr 19 00:58:58 uashost1 kernel: [3169947.792018] Out of memory: Kill process 10875 (kvm) score 1 or sacrifice child
