On Mon, May 17, 2010 at 05:36:17PM +0300, Deniss wrote:
> Herbert Poetzl wrote:
> >On Fri, May 07, 2010 at 03:17:04PM +0300, Deniss wrote:
> >>yeh, looks like the problem is in vprocunhide - when problem arise in
> >>already open session to guest `ps` stop working
> >>www ~ # ps -efH
> >>Error, do this: mount -t proc proc /proc
> >>when i enter to guset using 'vserver enter' the problem disappears -
> >>proc is mounted and ssh working
> >util-vserver version?
> zavarka ~ # vserver-info
> Versions:
> Kernel: 2.6.32.12-vs2.3.0.36.29.4-vserver-intel
> VS-API: 0x00020305
> util-vserver: 0.30.216-pre2883; Apr 15 2010, 14:13:08
>
> Features:
> CC: i686-pc-linux-gnu-gcc, i686-pc-linux-gnu-gcc
> (Gentoo 4.3.4 p1.0, pie-10.1.5) 4.3.4
> CXX: i686-pc-linux-gnu-g++, i686-pc-linux-gnu-g++
> (Gentoo 4.3.4 p1.0, pie-10.1.5) 4.3.4
> CPPFLAGS: ''
> CFLAGS: '-O2 -mtune=native -march=native -pipe
> -fomit-frame-pointer -std=c99 -Wall -pedantic -W -funit-at-a-time'
> CXXFLAGS: '-O2 -mtune=native -march=native -pipe
> -fomit-frame-pointer -ansi -Wall -pedantic -W -fmessage-length=0
> -funit-at-a-time'
> build/host: i686-pc-linux-gnu/i686-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#: 273/glibc
> crypto api: beecrypt
> python bindings: yes
> 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: /vservers
> >>Deniss wrote:
> >>>hello !
> >>>i have a problem with devpts on 2.6.32.12-vs2.3.0.36.29.4:
> >>>sometimes sshd stop allowing to log in with errors:
> >does it happen on a more recent kernel/patch too?
> I running
> http://people.linux-vserver.org/~harry/patch-2.6.32.12-vs2.3.0.36.29.4-grsec2.1.14-20100503.diff
maybe the issue is grsec related?
if you can easily reproduce it, please try without the
grsec patch and let us know how that goes ...
TIA,
Herbert
> that is the latest one patch
> Note that the problem happens after some time after guest start, and
> it is enough to run "vprocunhide" again to fix it
> >TIA,
> >Herbert
> >>>May 7 11:01:28 www sshd[1520]: fatal: openpty returns device for which
> >>>ttyname fails.
> >>>May 7 11:01:28 www sshd[1520]: error: chown 0 0 failed: No such file
> >>>or directory
> >>>May 7 11:01:28 www sshd[1520]: error: chmod 0666 failed: No such file
> >>>or directory
> >
> >>>restarting sshd helps
> >
> >>>i think the problem may be in context leak between host and guest cos
> >>>they share /dev/pts as i understand
> >
> >>>probably the solution may be to use "newinstance" feature of devpts but
> >>>i cant manage to get it working.
Received on Mon May 17 18:55:00 2010