[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Got fixed in lxc ** Changed in: linux (Ubuntu Quantal) Status: Confirmed => Invalid ** Changed in: linux (Ubuntu Precise) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Branch linked: lp:ubuntu/precise-updates/lxc -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
This bug was fixed in the package lxc - 0.7.5-3ubuntu63 --- lxc (0.7.5-3ubuntu63) precise-proposed; urgency=low * lxc.lxc-net.upstart: replace the check for USE_LXC_BRIDGE (which could be changed from true to false after starting lxc-net) with one for the existence /var/run/lxc. (LP: #1019290) * lxc-start-ephemeral: use unionfs only for the rootfs itself (LP: #959352) -- Serge HallynTue, 14 Aug 2012 11:38:25 -0500 ** Changed in: lxc (Ubuntu Precise) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
On Wed, Sep 12, 2012 at 7:54 PM, Stéphane Graber wrote: > Based on Benji's comment, marking verification-done. Thank you. I forgot to do that. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Based on Benji's comment, marking verification-done. ** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
With 0.7.5-3ubuntu63 I can no longer reproduce the bad behavior and an strace of an affected binary shows correct paths being used. This looks fixed to me. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Hello Benji, or anyone else affected, Accepted lxc into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/lxc/0.7.5-3ubuntu63 in a few hours, and then in the -proposed repository. Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please change the bug tag from verification-needed to verification-done. If it does not, change the tag to verification-failed. In either case, details of your testing will help us make a better decision. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance! ** Changed in: lxc (Ubuntu Precise) Status: In Progress => Fix Committed ** Tags added: verification-needed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Branch linked: lp:ubuntu/lxc -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Changed in: lxc (Ubuntu Precise) Status: Triaged => In Progress -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Description changed: - Ephemeral containers (but not non-ephemeral ones) have all of their - /proc/*/maps entries prefixed with "/rootfs". One problem this causes - is that graphviz uses /proc/self/maps to locate its plugins. That means - that some of the plugins can not be loaded. + === + SRU Justification (for lxc workaround) + 1. Impact: /proc/self/maps and /proc/self/fd entries in ephemeral containers +are prefixed with '/rootfs'. Software which uses these paths to find +plugins or other files will break. + 2. Development fix (workaround): The prepended paths lead to the root dentry +of the overlayfs mount. So lxc-start-ephemeral is changed to make the +container rootfs / the root of the overlay mount. + 3. Stable fix: same as development fix. + 4. Test case: +sudo lxc-create -t ubuntu -n q1 +sudo lxc-start-ephemeral -o q1 +In another terminal, follow the instructions to open a console to the +ephemeral container. Therein log in as ubuntu/ubuntu, and do: + cat /proc/self/maps + ls -l /proc/self/fd/ +and check whether entries are prefixed with '/rootfs' + 5. Regression potential: Customized containers (especially which have custom +made directories under /var/lib/lxc/ may break. If this becomes +a problem we could place all of /var/lib/lxc/-temp-X in +another empty tmpfs, however that is not free. + === + Ephemeral containers (but not non-ephemeral ones) have all of their /proc/*/maps entries prefixed with "/rootfs". One problem this causes is that graphviz uses /proc/self/maps to locate its plugins. That means that some of the plugins can not be loaded. To reproduce the problem with dot, run this command: - dot -Tcmapx < /dev/null + dot -Tcmapx < /dev/null No output is expected, however because of the bug this output is produced: - Format: "cmapx" not recognized. Use one of: dia hpgl mif mp pcl pic + Format: "cmapx" not recognized. Use one of: dia hpgl mif mp pcl pic vtx A workaround for the problem with graphviz is to make the plugins available at the path it is expecting: - mkdir -p /rootfs/usr/lib - ln -s /usr/lib/graphviz /rootfs/usr/lib/graphviz - --- + mkdir -p /rootfs/usr/lib + ln -s /usr/lib/graphviz /rootfs/usr/lib/graphviz + --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.95-0ubuntu1 Architecture: i386 DistroRelease: Ubuntu 12.04 HibernationDevice: RESUME=UUID=2c5f282a-e713-4ae0-a940-87a40efd050f InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) MachineType: LENOVO 4313CTO Package: lxc ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic-pae root=UUID=8469c78f-d0fc-4564-a009-eed59bd1fdff ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.2.0-20.33-generic-pae 3.2.12 RfKill: - 0: phy0: Wireless LAN - Soft blocked: no - Hard blocked: no + 0: phy0: Wireless LAN + Soft blocked: no + Hard blocked: no StagingDrivers: mei Tags: precise staging Uname: Linux 3.2.0-20-generic-pae i686 UpgradeStatus: Upgraded to precise on 2012-01-24 (63 days ago) UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare dmi.bios.date: 10/26/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6MET81WW (1.41 ) dmi.board.name: 4313CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6MET81WW(1.41):bd10/26/2010:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4313CTO dmi.product.version: ThinkPad T510 dmi.sys.vendor: LENOVO ** Changed in: lxc (Ubuntu Precise) Status: New => Triaged ** Changed in: lxc (Ubuntu Precise) Importance: Undecided => High ** Changed in: lxc (Ubuntu Precise) Assignee: (unassigned) => Serge Hallyn (serge-hallyn) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
This bug was fixed in the package lxc - 0.8.0~rc1-4ubuntu24 --- lxc (0.8.0~rc1-4ubuntu24) quantal; urgency=low * lxc-start-ephemeral: use unionfs only for the rootfs itself (LP: #959352) * allow config files to include other config files. -- Serge HallynTue, 14 Aug 2012 13:11:24 + ** Changed in: lxc (Ubuntu Quantal) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Also affects: linux (Ubuntu Precise) Importance: Undecided Status: New ** Also affects: lxc (Ubuntu Precise) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Quantal) Importance: Medium Assignee: Bryan Wu (cooloney) Status: Confirmed ** Also affects: lxc (Ubuntu Quantal) Importance: High Assignee: Serge Hallyn (serge-hallyn) Status: Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Here is a version which properly cleans up. ** Patch added: "lxc-maps2.debdiff" https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/959352/+attachment/3260677/+files/lxc-maps2.debdiff -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
The following actually seems to work. Instead of using an overlayfs for all of /var/lib/lxc/q1-tmp-X, it only uses the overlayfs mount for /var/lib/lxc/q1-tmp-XX/rootfs. That way, as per Miklos' comment, /proc/self/fd and /proc/self/maps contents are resolved relative to the overlayfs root the same way as relative to the container rootfs. Won't help for userspace inside the container which does chroot/pivot_root, but for a simple container it solves the bug for me. ** Patch added: "lxc-maps.debdiff" https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/959352/+attachment/3260628/+files/lxc-maps.debdiff -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Ok, trying to work around this by changing how the ephemeral container is set up. ** Changed in: lxc (Ubuntu) Assignee: (unassigned) => Serge Hallyn (serge-hallyn) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
@Serge -- i am not familiar with how the chroot is made, but given the full directory is not included only the rootfs component we might be able to change where the union is mounted, to avoid this if its really life ending. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Based on the overlayfs maintainer Miklos Szeredi's email [1], I think probably this issue won't be fixed in overlayfs very recently. So I agree to add this workaround in lxc-start-ephemeral. Please find my patch attached for review. it is against to latest lxc-start-ephemeral in Quantal. [1]: https://lists.ubuntu.com/archives/kernel- team/2012-August/021588.html ** Patch added: "rootfs_prefix.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+attachment/3260345/+files/rootfs_prefix.patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
I'm quite clearly against adding this hack to lxc-ubuntu and lxc-ubuntu- cloud as since with 12.04, we're saying that a chroot filesystem is identical to a stock ubuntu filesystem, which would no longer be true with the workaround. Instead, I guess we could get that hack into lxc-start-ephemeral with the proper checks (in case the rootfs is read-only for example), but I still consider that a pretty ugly hack and would rather the source of the problem be fixed... -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
I tried doing 'ln -s . rootfs' in container q1, then did lxc-start- ephemeral -o q1, logged in, and checked /proc/self/maps. It still listed /rootfs/. Of course the paths will now resolve. I'm not sure that suffices. If it does, we could temporarily create that symbolic link in the ubuntu templates. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
On Fri, Aug 10, 2012 at 2:58 AM, Andy Whitcroft wrote: > Can this not be worked around very simply by symlinking rootfs in the > container to / as this prefix is common and consistant in all the > afffected files? > > ln -s . rootfs I believe so. The above is a generalization of the workaround given in the original report. At report time we were only having a problem with a particular piece of software (graphviz) because of the way it searches for plugins. -- Benji York -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Can this not be worked around very simply by symlinking rootfs in the container to / as this prefix is common and consistant in all the afffected files? ln -s . rootfs -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Changed in: linux (Ubuntu) Assignee: (unassigned) => Bryan Wu (cooloney) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Quoting Leann Ogasawara (leann.ogasaw...@canonical.com): > It would be helpful if anyone could confirm if this issue remains with > the latest Quantal 3.5.0-3.3 kernel. We do have the Quantal kernel Confirmed it is still happening. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Reproducing the trace above is possible by doing: 1) apt-get install lxc 2) lxc-create -t ubuntu -n p1 3) lxc-start-ephemeral -o p1 -u ubuntu -- cat /proc/self/maps When prompted for the ubuntu account's password, the password is "ubuntu". -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
It's still happening on up to date quantal: root@lantea:~# cat /proc/version Linux version 3.5.0-3-generic (buildd@akateko) (gcc version 4.7.1 (Ubuntu/Linaro 4.7.1-2ubuntu1) ) #3-Ubuntu SMP Mon Jul 2 16:51:39 UTC 2012 root@lantea:~# dpkg -l | grep linux-image-3.5 ii linux-image-3.5.0-2-generic3.5.0-2.2 Linux kernel image for version 3.5.0 on 32 bit x86 SMP ii linux-image-3.5.0-3-generic3.5.0-3.3 Linux kernel image for version 3.5.0 on 32 bit x86 SMP root@lantea:~# lxc-start-ephemeral -o p1 -u ubuntu -- cat /proc/self/maps Setting up ephemeral container... Starting up the container... Warning: Permanently added '10.0.3.112' (ECDSA) to the list of known hosts. ubuntu@10.0.3.112's password: 08048000-08053000 r-xp 08:01 415243 /rootfs/bin/cat 08053000-08054000 r--p a000 08:01 415243 /rootfs/bin/cat 08054000-08055000 rw-p b000 08:01 415243 /rootfs/bin/cat 09d5a000-09d7b000 rw-p 00:00 0 [heap] b7584000-b7585000 rw-p 00:00 0 b7585000-b7724000 r-xp 08:01 669268 /rootfs/lib/i386-linux-gnu/libc-2.15.so b7724000-b7726000 r--p 0019f000 08:01 669268 /rootfs/lib/i386-linux-gnu/libc-2.15.so b7726000-b7727000 rw-p 001a1000 08:01 669268 /rootfs/lib/i386-linux-gnu/libc-2.15.so b7727000-b772a000 rw-p 00:00 0 b772d000-b772f000 rw-p 00:00 0 b772f000-b773 r-xp 00:00 0 [vdso] b773-b775 r-xp 08:01 669259 /rootfs/lib/i386-linux-gnu/ld-2.15.so b775-b7751000 r--p 0001f000 08:01 669259 /rootfs/lib/i386-linux-gnu/ld-2.15.so b7751000-b7752000 rw-p 0002 08:01 669259 /rootfs/lib/i386-linux-gnu/ld-2.15.so bfdbe000-bfddf000 rw-p 00:00 0 [stack] Stopping lxc root@lantea:~# -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
It would be helpful if anyone could confirm if this issue remains with the latest Quantal 3.5.0-3.3 kernel. We do have the Quantal kernel available for testing in Precise via the q-lts-backport PPA: https://launchpad.net/~ubuntu-x-swat/+archive/q-lts-backport sudo add-apt-repository ppa:ubuntu-x-swat/q-lts-backport sudo apt-get update sudo apt-get install linux-image-generic-lts-quantal linux-headers-generic-lts-quantal -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Added bot-stop-nagging, AFAIK aufs and overlayfs are SAUCE changes to the kernel, so it's pretty unlikely that any upstream kernel testing would work. This really needs to be looked into by a kernel team member. ** Tags added: bot-stop-nagging ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Thank you for taking the time to file a bug report on this issue. However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request. We have noted that there is a newer version of the development kernel than the one you last tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not. You can update to the latest development kernel by simply running the following commands in a terminal window: sudo apt-get update sudo apt-get dist-upgrade If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released. If you want this bot to quit automatically requesting kernel tests, add a tag named: bot-stop-nagging. Thank you for your help, we really do appreciate it. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags added: kernel-request-3.2.0-21.34 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
I have duped the problem Benji reported, and did the kernel test in order to let him work on other tasks. The given kernel (reported in /proc/version as "Linux version 3.3.0-030300-generic (apw@gomeisa) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1) ) #201203182135 SMP Mon Mar 19 01:36:20 UTC 2012") does not appear to have overlayfs or aufs compiled in, so I was unable to test as requested (http://pastebin.ubuntu.com/905562/). I'm happy to try again if given updated instructions. ** Tags added: kernel-unable-to-test-upstream -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.3 kernel[1] (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [1] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-precise/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: needs-upstream-testing -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
apport information ** Tags added: apport-collected precise staging ** Description changed: Ephemeral containers (but not non-ephemeral ones) have all of their /proc/*/maps entries prefixed with "/rootfs". One problem this causes is that graphviz uses /proc/self/maps to locate its plugins. That means that some of the plugins can not be loaded. To reproduce the problem with dot, run this command: dot -Tcmapx < /dev/null No output is expected, however because of the bug this output is produced: Format: "cmapx" not recognized. Use one of: dia hpgl mif mp pcl pic vtx A workaround for the problem with graphviz is to make the plugins available at the path it is expecting: mkdir -p /rootfs/usr/lib ln -s /usr/lib/graphviz /rootfs/usr/lib/graphviz + --- + AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. + ApportVersion: 1.95-0ubuntu1 + Architecture: i386 + DistroRelease: Ubuntu 12.04 + HibernationDevice: RESUME=UUID=2c5f282a-e713-4ae0-a940-87a40efd050f + InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) + MachineType: LENOVO 4313CTO + Package: lxc + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic-pae root=UUID=8469c78f-d0fc-4564-a009-eed59bd1fdff ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 3.2.0-20.33-generic-pae 3.2.12 + RfKill: + 0: phy0: Wireless LAN + Soft blocked: no + Hard blocked: no + StagingDrivers: mei + Tags: precise staging + Uname: Linux 3.2.0-20-generic-pae i686 + UpgradeStatus: Upgraded to precise on 2012-01-24 (63 days ago) + UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare + dmi.bios.date: 10/26/2010 + dmi.bios.vendor: LENOVO + dmi.bios.version: 6MET81WW (1.41 ) + dmi.board.name: 4313CTO + dmi.board.vendor: LENOVO + dmi.board.version: Not Available + dmi.chassis.asset.tag: No Asset Information + dmi.chassis.type: 10 + dmi.chassis.vendor: LENOVO + dmi.chassis.version: Not Available + dmi.modalias: dmi:bvnLENOVO:bvr6MET81WW(1.41):bd10/26/2010:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: + dmi.product.name: 4313CTO + dmi.product.version: ThinkPad T510 + dmi.sys.vendor: LENOVO ** Attachment added: "AcpiTables.txt" https://bugs.launchpad.net/bugs/959352/+attachment/2955072/+files/AcpiTables.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
This may be a kernel regression. Using an aufs ephemeral container with the new precise lxc package, on oneiric kernel and userspace, doesn't show the /var/lib/lxc//rootfs prefix. (I can't test overlayfs on oneiric kernel as it's not supported there) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Hi Serge. Thanks for looking at this. On an aufs-mounted ephemeral: gary@lpdev-temp-tKJg9Ss:~$ cat /proc/self/maps 08048000-08054000 r-xp 08:12 414657 /var/lib/lxc/lpdev/rootfs/bin/cat 08054000-08055000 r--p b000 08:12 414657 /var/lib/lxc/lpdev/rootfs/bin/cat 08055000-08056000 rw-p c000 08:12 414657 /var/lib/lxc/lpdev/rootfs/bin/cat 09aba000-09adb000 rw-p 00:00 0 [heap] f7629000-f762a000 rw-p 00:00 0 f762a000-f777d000 r-xp 08:12 395454 /var/lib/lxc/lpdev/rootfs/lib/tls/i686/cmov/libc-2.11.1.so f777d000-f777f000 r--p 00153000 08:12 395454 /var/lib/lxc/lpdev/rootfs/lib/tls/i686/cmov/libc-2.11.1.so f777f000-f778 rw-p 00155000 08:12 395454 /var/lib/lxc/lpdev/rootfs/lib/tls/i686/cmov/libc-2.11.1.so f778-f7783000 rw-p 00:00 0 f778d000-f778f000 rw-p 00:00 0 f778f000-f779 r-xp 00:00 0 [vdso] f779-f77ab000 r-xp 08:12 393068 /var/lib/lxc/lpdev/rootfs/lib/ld-2.11.1.so f77ab000-f77ac000 r--p 0001a000 08:12 393068 /var/lib/lxc/lpdev/rootfs/lib/ld-2.11.1.so f77ac000-f77ad000 rw-p 0001b000 08:12 393068 /var/lib/lxc/lpdev/rootfs/lib/ld-2.11.1.so ffd7f000-ffda rw-p 00:00 0 [stack] gary@lpdev-temp-tKJg9Ss:~$ cat /proc/self/mounts rootfs / rootfs rw 0 0 none / aufs rw,relatime,si=bf91329ce378bd10,noplink 0 0 proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 sysfs /sys sysfs rw,relatime 0 0 none /home/gary aufs rw,relatime,si=bf91329dec9efd10,noplink 0 0 devpts /dev/console devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/tty1 devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/tty2 devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/tty3 devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/tty4 devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/pts devpts rw,relatime,mode=600,ptmxmode=666 0 0 devpts /dev/ptmx devpts rw,relatime,mode=600,ptmxmode=666 0 0 none /lib/init/fstab aufs rw,relatime,si=bf91329ce378bd10,noplink 0 0 On an overlayfs-mounted ephemeral: gary@lpdev-temp-P4zdc8P:~$ cat /proc/self/maps 08048000-08054000 r-xp 08:12 414657 /rootfs/bin/cat 08054000-08055000 r--p b000 08:12 414657 /rootfs/bin/cat 08055000-08056000 rw-p c000 08:12 414657 /rootfs/bin/cat 09081000-090a2000 rw-p 00:00 0 [heap] f7586000-f7587000 rw-p 00:00 0 f7587000-f76da000 r-xp 08:12 395454 /rootfs/lib/tls/i686/cmov/libc-2.11.1.so f76da000-f76dc000 r--p 00153000 08:12 395454 /rootfs/lib/tls/i686/cmov/libc-2.11.1.so f76dc000-f76dd000 rw-p 00155000 08:12 395454 /rootfs/lib/tls/i686/cmov/libc-2.11.1.so f76dd000-f76e rw-p 00:00 0 f76ea000-f76ec000 rw-p 00:00 0 f76ec000-f76ed000 r-xp 00:00 0 [vdso] f76ed000-f7708000 r-xp 08:12 393068 /rootfs/lib/ld-2.11.1.so f7708000-f7709000 r--p 0001a000 08:12 393068 /rootfs/lib/ld-2.11.1.so f7709000-f770a000 rw-p 0001b000 08:12 393068 /rootfs/lib/ld-2.11.1.so ff936000-ff957000 rw-p 00:00 0 [stack] gary@lpdev-temp-P4zdc8P:~$ cat /proc/self/mounts rootfs / rootfs rw 0 0 none / overlayfs rw,relatime,lowerdir=/var/lib/lxc/lpdev,upperdir=/tmp/lxc-lp-8lXebKT 0 0 proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 sysfs /sys sysfs rw,relatime 0 0 none /home/gary overlayfs rw,relatime,lowerdir=/home/gary,upperdir=/var/lib/lxc/lpdev-temp-P4zdc8P/ephemeralbind/home/gary 0 0 devpts /dev/console devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/tty1 devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/tty2 devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/tty3 devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/tty4 devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 devpts /dev/pts devpts rw,relatime,mode=600,ptmxmode=666 0 0 devpts /dev/ptmx devpts rw,relatime,mode=600,ptmxmode=666 0 0 none /lib/init/fstab overlayfs rw,relatime,lowerdir=/var/lib/lxc/lpdev,upperdir=/tmp/lxc-lp-8lXebKT 0 0 The maps are obviously different. The "rootfs" is not in the aufs version, but then the paths are from the host, and for the template container. I'm not sure what to mak
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
** Changed in: lxc (Ubuntu) Importance: Low => High -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Gary, you were able to create aufs ephemeral containers with lp:~serge- hallyn/ubuntu/precise/lxc/lxcshutdownv2. Can you create one and check /proc/self/mounts? I'm wondering whether this is only with overlayfs. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: lxc (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
We are discovering that this, or something very similar to it, is serious. For our own use, at least, I'd raise this to high (we don't have privileges to do so). According to lsof, many, many processes (sshd, upstart, init, ntpd, etc., as well as processes we start directly such as xvfb-run and our own code are looking in the wrong place (/rootfs/...) for important and sometimes essential files, including /rootfs/dev/random, /rootfs/dev/null, /rootfs/lib/tls ... , /rootfs/lib/security... , /rootfs/lib/libdbus-1.so.3.4.0, /rootfs/lib/libcom_err.so.2.1, /rootfs/usr/lib/libkrb5.so.3.3, and so on. We could maybe make symlinks for /rootfs/usr, /rootfs/lib, and /rootfs/dev but that feels like we're going too far, and that we really ought to address this. I'm not sure where to look to fix this. Is there something else important we are missing from lxc-clone? Help would be very appreciated. Thank you -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries
Thanks. That's curious. I'm marking low priority as it has a workaround, please raise if you feel appropriate. ** Changed in: lxc (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/959352/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
