Bug 840725 - libvirt lxc doesn't clean up devpts mounts, "permission denied" subsequently
Summary: libvirt lxc doesn't clean up devpts mounts, "permission denied" subsequently
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: libvirt
Version: 17
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Libvirt Maintainers
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-07-17 05:19 UTC by Matt Johnston
Modified: 2013-07-11 16:00 UTC (History)
11 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2013-07-11 16:00:27 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Matt Johnston 2012-07-17 05:19:36 UTC
Description of problem:
After stopping a lxc guest, devpts remains in use. Subsequent "virsh start" fails with "permission denied"

Version-Release number of selected component (if applicable):
libvirt-client-0.9.11.4-3.fc17.x86_64
linux 3.4.4-5.fc17.x86_64

How reproducible:
Always

Steps to Reproduce:
1. host config is as below. guest is a full centos 5.8 root filesystem rsynced from another VM.
2. virsh --connect lxc:/// start  ghost5
3. something goes wrong starting the host, I haven't debugged that yet. "virsh console" says it is not running, libvirt_lxc process is not running either. 
4. Try running it again "virsh --connect lxc:/// start  ghost5"
  
Actual results:
error: Failed to start domain ghost5
error: internal error guest failed to start: 2012-07-17 05:10:53.691+0000: 1723: info : libvirt version: 0.9.11.4, package: 3.fc17 (Fedora Project, 2012-06-28-13:50:28, x86-05.phx2.fedoraproject.org)
2012-07-17 05:10:53.691+0000: 1723: error : lxcControllerRun:1504 : Failed to mount devpts on /home/vm/ghost5/fs/root/dev/pts: Permission denied

Expected results:
The guest runs the same way it ran the first time. 

Additional info:

The only way to avoid the "permission denied" is a reboot of the host, as far as I can tell. Restarting libvirtd doesn't help.

Running with <init>/bin/sh</init> works fine multiple times. It fails after having run with "/sbin/init" though.

<domain type='lxc'>
  <name>ghost5</name>
  <uuid>10d3e111-b9e3-a25b-765d-3966a256f0f4</uuid>
  <memory unit='KiB'>2000000</memory>
  <currentMemory unit='KiB'>2000000</currentMemory>
  <vcpu>4</vcpu>
  <os>
    <type arch='x86_64'>exe</type>
    <init>/sbin/init</init>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/libexec/libvirt_lxc</emulator>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/home/vm/ghost5/fs/root'/>
      <target dir='/'/>
    </filesystem>
    <interface type='bridge'>
      <mac address='52:54:00:81:5d:57'/>
      <source bridge='br0'/>
    </interface>
    <console type='pty'>
      <target type='lxc' port='0'/>
    </console>
  </devices>
  <seclabel type='none'/>
</domain>

Comment 1 Fedora End Of Life 2013-07-03 23:44:54 UTC
This message is a reminder that Fedora 17 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 17. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '17'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 17's end of life.

Bug Reporter:  Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 17 is end of life. If you 
would still like  to see this bug fixed and are able to reproduce it 
against a later version  of Fedora, you are encouraged  change the 
'version' to a later Fedora version prior to Fedora 17's end of life.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 2 Cole Robinson 2013-07-11 16:00:27 UTC
Sorry for lack of response, but this is unlikely to be fixed in F17. Later versions of libvirt have seen a ton of lxc improvements, please reopen if you can still reproduce on F19 and we will take a look.


Note You need to log in before you can comment on or make changes to this bug.