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 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.