Subject: Re: [vserver] Vserver on GFS2 - lockf() error
From: Herbert Poetzl <herbert@13thfloor.at>
Date: Thu, 29 Jul 2010 16:22:38 +0200

On Thu, Jul 29, 2010 at 11:41:45AM +0200, Oliver Heinz wrote:
> Am Donnerstag, 29. Juli 2010 00:55:57 schrieb Herbert Poetzl:
> > On Tue, Jul 27, 2010 at 10:46:28AM +0200, Oliver Heinz wrote:
> > > Am Montag, 26. Juli 2010 23:50:53 schrieb Nirmal Guhan:
> > > > I remember running into similar issue when I was running a kernel
> > > > without vserver patch. Just wondering if that is the case for you too!

> > > Kernel is Linux 2.6.32.16-grsec2.2.0-vs2.3.0.36.29.4 and Vserver
> > > extensions are enabled (see vserver-info output below). Same issue
> > > occurs with current Debian Squeeze/Sid  Vserver enabled kernel.

> > just try with 2.6.32.16 first, then if that works, with
> > 2.6.32.16 + grsec, if that works too, try with
> > 2.6.32.16 + Linux-VServer (no grsec) if that fails,
> > we'll look into it :)

> Trying to start a vserver with the plain kernel is challenging ;-) 

no need to start a guest, but usually, for testing purposes
you can get away by simply using chroot ...

> I found a little locking testsuite here                                 
> http://nfsv4.bullopensource.org/tools/tests/locktest.php
> at it also complains about the missing lock function.

> When using in non cluster mode (option localflocks) the testsuite is  
> successful. So it seems to be an GFS2 issue and I'll have to ask for  
> help on a different mailing list then.

no problem, keep us updated ...

best,
Herbert

> thanks so far,
> Oliver
> 
> 
> > 
> > TIA,
> > Herbert
> > 
> > > Oliver
> > > 
> > > > --Nirmal
> > > > 
> > > > On Mon, Jul 26, 2010 at 2:39 AM, Oliver Heinz <oheinz@fbihome.de> wrote:
> > > > > Hi there,
> > > > > 
> > > > > is there anybody running Vservers on GFS2? I can't find much about
> > > > > the lockf() that it complains is not implemented. Not much about
> > > > > fcntl-Problems with GFS either. GFS is running with
> > > > > pacemaker/corosycn cluster stack. GFS2 was created with options "-p
> > > > > lock_dlm -j2 -t pcmk:pcmk". I also to added them to the testfs.sh
> > > > > (output below)
> > > > > 
> > > > >  I just tried and get:
> > > > >> root@server-c:~# vserver -v testshared start
> > > > >> secure-mount: lockf(): Function not implemented
> > > > >> Failed to update mtab-file
> > > > >> secure-mount: lockf(): Function not implemented
> > > > >> Failed to update mtab-file
> > > > >> secure-mount: lockf(): Function not implemented
> > > > >> Failed to update mtab-file
> > > > >> New network context is 40
> > > > >> Adding 192.168.5.40 192.168.7.40
> > > > >> New security context is 40
> > > > >> /etc/init.d/rc: line 74: /etc/default/rcS: No such file or directory
> > > > >> error: '/etc/init.d/rc' exited outside the expected code flow.
> > > > >> 
> > > > >> An error occured while executing the vserver startup sequence; when
> > > > >> there are no other messages, it is very likely that the init-script
> > > > >> (/etc/init.d/rc 3) failed.
> > > > >> 
> > > > >> Common causes are:
> > > > >> * /etc/rc.d/rc on Fedora Core 1 and RH9 fails always; the 'apt-rpm'
> > > > >> build method knows how to deal with this, but on existing
> > > > >> installations, appending 'true' to this file will help.
> > > > >> 
> > > > >> 
> > > > >> Failed to start vserver 'testshared'
> > > > > 
> > > > > Any Ideas?
> > > > > 
> > > > > 
> > > > > 
> > > > > TIA,
> > > > > Oliver
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > 
> > > > > root@server-c:~# vserver-info
> > > > > 
> > > > > Versions:
> > > > >                   Kernel: 2.6.32.16-grsec2.2.0-vs2.3.0.36.29.4
> > > > >                   VS-API: 0x00020305
> > > > >             
> > > > >             util-vserver: 0.30.215; Jun 18 2010, 13:35:17
> > > > > 
> > > > > Features:
> > > > >                       CC: gcc, gcc (Debian 4.4.4-5) 4.4.4
> > > > >                      
> > > > >                      CXX: g++, g++ (Debian 4.4.4-5) 4.4.4
> > > > >                 
> > > > >                 CPPFLAGS: ''
> > > > >                 
> > > > >                   CFLAGS: '-Wall -g  -O2 -std=c99 -Wall -pedantic -W
> > > > > 
> > > > > -funit- at-a-time'
> > > > > 
> > > > >                 CXXFLAGS: '-g -O2 -ansi -Wall -pedantic -W
> > > > > 
> > > > > -fmessage-length=0 -funit-at-a-time'
> > > > > 
> > > > >               build/host: x86_64-pc-linux-gnu/x86_64-pc-linux-gnu
> > > > >             
> > > > >             Use dietlibc: yes
> > > > >       
> > > > >       Build C++ programs: yes
> > > > >       Build C99 programs: yes
> > > > >       
> > > > >           Available APIs: v13,net,v21,v22,v23,netv2
> > > > >           
> > > > >            ext2fs Source: e2fsprogs
> > > > >    
> > > > >    syscall(2) invocation: alternative
> > > > >    
> > > > >      vserver(2) syscall#: 236/glibc
> > > > >      
> > > > >               crypto api: nss
> > > > >          
> > > > >          python bindings: no
> > > > >   
> > > > >   use library versioning: yes
> > > > > 
> > > > > Paths:
> > > > >                   prefix: /usr
> > > > >        
> > > > >        sysconf-Directory: /etc
> > > > >        
> > > > >            cfg-Directory: /etc/vservers
> > > > >         
> > > > >         initrd-Directory: $(sysconfdir)/init.d
> > > > >       
> > > > >       pkgstate-Directory: /var/run/vservers
> > > > >       
> > > > >          vserver-Rootdir: /var/lib/vservers
> > > > > 
> > > > > root@server-c:~# ./testme.sh
> > > > > Linux-VServer Test [V0.17] Copyright (C) 2003-2006 H.Poetzl
> > > > > chcontext is working.
> > > > > chbind is working.
> > > > > Linux 2.6.32.16-grsec2.2.0-vs2.3.0.36.29.4 #1 SMP Tue Jul 13 10:55:57
> > > > > CEST 2010 x86_64
> > > > > Ea 0.30.215 236/glibc (DSa) <v13,net,v21,v22,v23,netv2>
> > > > > VCI: 0002:0305 236 13000fb1 (TbsPHIW)
> > > > > ---
> > > > > [000]# succeeded.
> > > > > [001]# succeeded.
> > > > > [011]# succeeded.
> > > > > [031]# succeeded.
> > > > > [101]# succeeded.
> > > > > [102]# succeeded.
> > > > > [201]# succeeded.
> > > > > [202]# succeeded.
> > > > > 
> > > > > 
> > > > > 
> > > > > root@server-c:~# ./testfs.sh -t -D /dev/loop0 -F gfs2 -M /mnt
> > > > > Linux-VServer FS Test [V0.23] Copyright (C) 2005-2009 H.Poetzl
> > > > > Linux 2.6.32.16-grsec2.2.0-vs2.3.0.36.29.4 x86_64/0.30.215
> > > > > VCI:  0002:0305 236 13000fb1 (ID24)
> > > > > ---
> > > > > testing gfs2 filesystem ...
> > > > > [000]. [001]*
> 
>