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List:       lxc-users
Subject:    [lxc-users] lxcfs segfaults since around 2019-07-23, containers malfunction
From:       Tomasz Chmielewski <mangoo () wpkg ! org>
Date:       2019-07-23 11:31:12
Message-ID: e0b3b16f8f7bc270067ad05a76654987 () wpkg ! org
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Since around 2019-07-23, lxcfs segfaults randomly on Ubuntu 18.04 
servers with LXD from snap:

lxcfs[1424]: segfault at 0 ip 00007f518f5e4326 sp 00007f519da1f9a0 error 
4 in liblxcfs.so[7f518f5d8000+1a000]


As a result, containers malfunction. If a container is stopped, then 
started again - everything works well, however - after a few hours, it 
happens again.

root@uni01:~# free
Error: /proc must be mounted
   To mount /proc at boot you need an /etc/fstab line like:
       proc   /proc   proc    defaults
   In the meantime, run "mount proc /proc -t proc"

root@uni01:~# uptime
Error: /proc must be mounted
   To mount /proc at boot you need an /etc/fstab line like:
       proc   /proc   proc    defaults
   In the meantime, run "mount proc /proc -t proc"


root@uni01:~# ls /proc
ls: cannot access '/proc/stat': Transport endpoint is not connected
ls: cannot access '/proc/swaps': Transport endpoint is not connected
ls: cannot access '/proc/uptime': Transport endpoint is not connected
ls: cannot access '/proc/cpuinfo': Transport endpoint is not connected
ls: cannot access '/proc/meminfo': Transport endpoint is not connected
ls: cannot access '/proc/diskstats': Transport endpoint is not connected
(...)

Is it a known issue? I'm observing it on around 10 servers.


Tomasz Chmielewski
https://lxadm.com
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