| title: | Re 2 Linux cluster Permissions in create |
|
Wednesday, August 18, 2004, 9:46:45 AM, Patrick Caulfield wrote:
On Wed, Aug 18, 2004 at 09:16:05AM -0400, Jeff wrote:
Assuming that the named DLM namespace does not
already exist, the following code should
create a namespace which any process on the system
can open. However it doesnt work and subsequent
processes must be root or else the open_lockspace
call fails with
Odd, it works here:
dlm_create_lockspace(lsname, 0755);
# ls -l /dev/misc/
total 0
crw-r--r-- 1 root root 10, 62 Jun 11 08:20 dlm-control
crw------- 1 root root 10, 61 Aug 17 13:39 dlm_default
crwxr-xr-x 1 root root 10, 60 Aug 18 14:44 dlm_testls
crw-r--r-- 1 root root 10, 62 Feb 19 08:38 gdlm
Have you checked the value of umask ?
or is SELinux getting in the way ?(eek!)
Apologies for the earlier ls -l output, that was from a user
process, not a root job. It really looks like:
[root@lx3]# ls -l /dev/misc
total 0
crw-r--r-- 1 root root 10, 62 Jul 21 06:24 dlm-control
crwxrwxrwx 1 root root 10, 61 Jul 21 06:24 dlm_default
crwxrwxrwx 1 root root 10, 59 Aug 18 09:15 dlm_play
crwxrwxrwx 1 root root 10, 60 Jul 21 06:26 dlm_testls
The problem is that /dev/misc was missing x permission:
drw-rw-rw- 2 root root 4096 Aug 18 09:15 /dev/misc/
Changing this to
drwxrwxrwx 2 root root 4096 Aug 18 09:55 /dev/misc/
allows non-root jobs to connect to namespaces based on
the namespaces permissions.
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