It works as root. I know that much. I guess I thought it was
possible to hit the dlm as just a plain user. No?
-Eric
On 11/2/06, Josef Whiter <jwhiter@xxxxxxxxxx> wrote:
Run it as root.
Josef
On Thu, Nov 02, 2006 at 12:51:34PM -0500, Eric Johnson wrote:
> Hi -
>
> I must be very dumb. I'm unable to do what I would consider to be the
> "Hello World" of user mode dlm.
>
> [ejohnson@gfsa01:~/projects/dlm-simple] cat foo.cpp
> #include <errno.h>
> #include <stdio.h>
> #include <sys/types.h>
> #include <sys/stat.h>
> #include <stdint.h>
>
> extern "C" {
> #include <libdlm.h>
> }
> #include <pthread.h>
>
> main(int argc, char **argv)
> {
> printf("hello world\n");
> char lockName[] = "foobar" ;
>
> int initStatus = dlm_pthread_init();
> printf("initStatus: %d, errno: %d\n",initStatus,errno);
>
> int lockid =0 ;
> int status = lock_resource( lockName, LKM_EXMODE, 0, &lockid ) ;
> printf("status: %d, errno: %d\n",status,errno);
> }
> [ejohnson@gfsa01:~/projects/dlm-simple] touch foo.cpp
>
> [ejohnson@gfsa01:~/projects/dlm-simple] make
> g++ -D_REENTRANT foo.cpp -o foo -ldlm -lpthread
> ./foo/home/dev/util/linux64/bin/ld: skipping incompatible
> /home/dev/util/linux64/lib/gcc/x86_64-unknown-linux-gnu/4.1.1/libstdc++.a
> when searching for -lstdc++
>
> [ejohnson@gfsa01:~/projects/dlm-simple] ./foo
> hello world
> initStatus: -1, errno: 13
> status: -1, errno: 13
>
> I have googled around endlessly and been unable to find any insight as
> to what it is that I'm missing.
>
> I'll gladly take a terse - "Hey knucklehead, go read this page in more
> detail."
>
> -Eric
>
> --
> Linux-cluster mailing list
> Linux-cluster@xxxxxxxxxx
> https://www.redhat.com/mailman/listinfo/linux-cluster
--
Linux-cluster mailing list
Linux-cluster@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/linux-cluster
--
Linux-cluster mailing list
Linux-cluster@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/linux-cluster
