touch-packages team mailing list archive

[Serge Hallyn <1377973@xxxxxxxxxxxxxxxxxx>]

Quoting Nikola Krzalic (nikola@xxxxxxxxxxx):
> Looks like the lxc-start command got stuck, after killing the process
> everything went back to normal.
...
> still, I find it a bit strange that not even lxc-ls was working properly....

Right, we should find a way to keep lxc-stop and lxc-ls from hanging in
this case.  Perhaps after a (reasonably long) timeout we should assume
it is dead, hard-kill the container (in this case the owner of the
command socket), and continue.

(marking medium importance rather than high, per guidelines, since it
can be detected and worked around)

 status: confirmed
 importance: medium


** Changed in: lxc (Ubuntu)
   Importance: Undecided => Medium

** Changed in: lxc (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1377973

Title:
  lxc-destroy/lxc-stop gets stuck

Status in “lxc” package in Ubuntu:
  Confirmed

Bug description:
  On ubuntu 14.04 I ran lxc-start with a custom built container and
  interrupted the setup before it could finish. Now lxc-ls --fancy, lxc-
  destroy -n container or lxc-stop -n container are getting stuck. LXC
  package version is 1.0.5-0ubuntu0.1

  Output from strace:

  # strace lxc-destroy -n myvm
  <....>
  mkdir("/", 0755)                        = -1 EEXIST (File exists)
  mkdir("/run/", 0755)                    = -1 EEXIST (File exists)
  mkdir("/run/lock/", 0755)               = -1 EEXIST (File exists)
  mkdir("/run/lock/lxc//", 0755)          = -1 EEXIST (File exists)
  mkdir("/run/lock/lxc//var/", 0755)      = -1 EEXIST (File exists)
  mkdir("/run/lock/lxc//var/lib/", 0755)  = -1 EEXIST (File exists)
  mkdir("/run/lock/lxc//var/lib/lxc", 0755) = -1 EEXIST (File exists)
  stat("/var/lib/lxc/myvm/config", 0x7fff06d64f50) = -1 ENOENT (No such file or directory)
  stat("/var/lib/lxc/myvm/partial", 0x7fff06d64e80) = -1 ENOENT (No such file or directory)
  socket(PF_LOCAL, SOCK_STREAM, 0)        = 3
  connect(3, {sa_family=AF_LOCAL, sun_path=@"/var/lib/lxc/myvm/command"}, 28) = 0
  getuid()                                = 0
  getgid()                                = 0
  sendmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"\4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16}], msg_controllen=32, {cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS{pid=2028, uid=0, gid=0}}, msg_flags=0}, MSG_NOSIGNAL) = 16
  recvmsg(3,

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