Herbert Poetzl wrote: > 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 ... which version you suggest to try ? > > 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.