>> And the HN's kernel.shmmax is set to 1 GB. (Is that relevant in a VE?) > check the same in VE please. > AFAICS, by default kernel sets: > #define SHMMAX 0x2000000 > which is 32Mb. > So you have to increase it in VE /etc/sysctl.conf file or in /proc.
Ahhh, very tricky -- in that it's exactly what one should expect! Thanks, Kirill; I can't believe that this escaped me. I had thought that the VE would have shmmax set by the UBC; evidently it's the case that each VE gets their own set of sysctls for perfectly ordinary use. So, let me summarize the shared memory situation for VEs: * The HN's kernel.shmmax sets an absolute limit on shared memory, for both the HN and any VEs. * A VE's shmpages sets the limit on shared memory for that VE. Therefore it must be <= kernel.shmmax * Then the VE uses sysctl kernel.shmmax to set their allowable limit, which of course must be <= the VE's shmpages. Sound right? -- HostGIS Cartographic development and hosting services 707-822-9355 http://www.HostGIS.com/ "Remember that no one cares if you can back up, only if you can restore." - AMANDA _______________________________________________ Users mailing list [email protected] https://openvz.org/mailman/listinfo/users
