On Wed, 2009-07-01 at 18:40 +0200, Guido Günther wrote:
> Hi Fabio,
> On Wed, Jul 01, 2009 at 03:23:56PM +0200, Fabio M. Di Nitto wrote:
> > Now my question is: did you mangle the configuration you sent me
> > manually? because there is no matching entry between device to use for a
> > node and the fencedevices section and I get:
> Yes, I had to get some internal names out. This is what went wrong:
>
> -<fencedevice agent="fence_ilo" hostname="rnode1.foo.bar" login="reboot" name="node1" passwd="pass"/>
> +<fencedevice agent="fence_ilo" hostname="rnode1.foo.bar" login="reboot" name="fence1" passwd="pass"/>
Ok perfect thanks.
>
> # fence_node -vv node2
> make_args(149): /cluster/fencedevices/fencedevice[@name="fence2"]/@*
> make_args(156)
> Segmentation fault
>
> > test 2:
> >
> > If you could please find:
> >
> > cd = ccs_connect(); (line 287 in agent.c)
> > and right before that add:
> > fullxpath=1;
> >
> > That change will ask libccs to use a different Xpath engine internally.
> >
> > And then re-run test1.
> # fence_node -vv node2
> fence_node(289): fullxpath: 0
> fence_node(291): fullxpath: 1
> make_args(149): /cluster/fencedevices/fencedevice[@name="fence2"]/@*
> make_args(156)
> Segmentation fault
>
> make_args(156) is just before the strncmp. Trying to print out str
> results in a segfault too (that's why it's missing from the output).
No matter what, I can't trigger this segfault.
Do you have a build log for the package? and could you send me the
make/defines.mk in the build tree?
gcc versions and usual tool chain info.. maybe it's a gcc bug or maybe
it's an optimization that behaves differently between debian and fedora.
I have attached a small test case to simply test libccs. At this point I
don't believe it's a problem in libfence. Could you please run it for me
and send me the output? If the bug is in libccs this would start
isolating it.
[root@fedora-rh-node4 ~]# gcc -Wall -o testccs main.c -lccs
[root@fedora-rh-node4 ~]# ./testccs
-hopefully some output-
and please check the XPath query at the top of main.c as it could be
slightly different given your config.
Thanks
Fabio
#include <stdio.h>
#include <stdlib.h>
#include <ccs.h>
#include <strings.h>
#include <limits.h>
static void dump() {
int cd, error;
const char *path = "/cluster/fencedevices/fencedevice[@name=\"fence2\"]/@*";
char *str;
cd = ccs_connect();
if (cd < 0)
return;
for (;;) {
error = ccs_get_list(cd, path, &str);
if (error || !str)
break;
printf("%s\n", str);
free(str);
}
ccs_disconnect(cd);
}
int main() {
printf("xpathlite\n");
dump();
printf("fullxpath\n");
fullxpath = 1;
dump();
return 0;
}
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