On Tue, Jan 17, 2006 at 09:14:45AM +0100, Wilhelm Meier wrote:
> Am Dienstag, 17. Januar 2006 05:12 schrieb Herbert Poetzl:
> > On Mon, Jan 16, 2006 at 11:37:39PM +0100, Wilhelm Meier wrote:
> > > Hello,
> > >
> > > the VServer-Paper states that files which belong originally to the
> > > host context 0 silently migrate to context id <nnn> if the were
> > > modified from context <nnn>. I made the tests below, but the file
> > > /mnt/x which was created in the host-context did not migrate.
> >
> > yes, good observation ...
> >
> > > Did I miss something?
> >
> > well, I guess no, the 'feature' was removed
> > before vs2.0 was released because it caused
>
> Do you mean the xid-migration?
yes
> > too much confusion, but of course, this might
> > be an issue for correct accounting, if there
> > are files which are _not_ unified but also
> > _not_ tagged properly ...
>
> In the case of unification and CoW link-breaking things should work,
> because in the case of breaking the link, a new file is created with
> the correct xid-tag, right?
yes
> > I will revive this feature and make it a
> > compile time config option in the next devel
> > release ...
>
> Do you have a schedule for the next devel release?
yes
> > HTC,
> > Herbert
> >
> > > gs mnt # uname -a
> > > Linux gs 2.6.14-vs2.0.1-gentoo #1 SMP PREEMPT Sun Jan 1 18:49:51 CET 2006
> > > i686 Intel(R) Pentium(R) M processor 1200MHz GenuineIntel GNU/Linux
> > >
> > > gs mnt # touch x
> > > gs mnt # vcontext --create --xid 10 /bin/bash
> > > New security context is 10
> > > gs mnt # ls -l
> > > total 12
> > > drwx------ 2 root root 12288 Jan 17 00:57 lost+found
> > > -rw-r--r-- 1 root root 0 Jan 17 01:19 x
> > > gs mnt # ls > x
> > > gs mnt # exit
> > > exit
> > > gs mnt # ls -l
> > > total 13
> > > drwx------ 2 root root 12288 Jan 17 00:57 lost+found
> > > -rw-r--r-- 1 root root 13 Jan 17 01:20 x
> > > gs mnt # lsxid
> > > 0 .
> > > 0 ./lost+found
> > > 0 ./x
> > > gs mnt # mount
> > > /dev/hda1 on / type ext3 (rw,noatime)
> > > proc on /proc type proc (rw)
> > > sysfs on /sys type sysfs (rw)
> > > udev on /dev type tmpfs (rw,nosuid)
> > > devpts on /dev/pts type devpts (rw)
> > > /dev/hdb1 on /tftproot type ext3 (rw,noatime)
> > > shm on /dev/shm type tmpfs (rw,noexec,nosuid,nodev)
> > > nfsd on /proc/fs/nfs type nfsd (rw)
> > > rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
> > > /dev/loop/0 on /mnt type ext2 (rw,tagxid)
> > > gs mnt #
> > > gs mnt # vcontext --create --xid 10 /bin/bash
> > > New security context is 10
> > > gs mnt # touch y
> > > gs mnt # exit
> > > exit
> > > gs mnt # lsxid
> > > 0 .
> > > 0 ./lost+found
> > > 0 ./x
> > > 10 ./y
> > > gs mnt #
> > >
> > > --
> > > --
> > > Wilhelm Meier
> > > email: meier@informatik.fh-kl.de
> > > _______________________________________________
> > > Vserver mailing list
> > > Vserver@list.linux-vserver.org
> > > http://list.linux-vserver.org/mailman/listinfo/vserver
>
> --
> --
> Wilhelm Meier
> email: meier@informatik.fh-kl.de
> _______________________________________________
> Vserver mailing list
> Vserver@list.linux-vserver.org
> http://list.linux-vserver.org/mailman/listinfo/vserver
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Received on Tue Jan 17 14:50:51 2006