Re: [linux-lvm] vgscan -- ERROR with 2.4.0-test13-pre4

[Jan Niehusmann <list039@gondor.com>]

On Fri, Dec 22, 2000 at 06:17:30PM +0100, Jan Niehusmann wrote:
> Now, when I try to boot the new kernel, I get the following message from
> vgscan:
> 
> vgscan -- ERROR "vg_read_with_pv_and_lv(): allocated LE of LV" can't get data of
>  volume group "vg1" from physical volume(s)

Ok, I found the problem: The sort order of the pv's is wrong, and 0.9 is
missing the code that sorts them. 0.8final's pv_read_all_pv_of_vg.c contains

      for ( p = 0; pv_tmp[p] != NULL; p++) {
         if ( strcmp ( pv_tmp[p]->vg_name, vg_name) == 0) {
            pv_this[pv_tmp[p]->pv_number-1] = pv_tmp[p];
            np++;
         }
      }

and 0.9's doesn't.

The following patch fixes it (I did this fix to prove my theory, it may
not be the right way to do it):

Index: pv_read_all_pv_of_vg.c
===================================================================
RCS file: /data/cvs/LVM/tools/lib/pv_read_all_pv_of_vg.c,v
retrieving revision 1.3
diff -u -1 -b -p -r1.3 pv_read_all_pv_of_vg.c
--- pv_read_all_pv_of_vg.c	2000/11/20 02:47:20	1.3
+++ pv_read_all_pv_of_vg.c	2000/12/22 23:27:00
@@ -103,2 +103,3 @@ int pv_read_all_pv_of_vg ( char *vg_name
             pv_this_sav = pv_this;
+	    if(np<pv_tmp[p]->pv_number) np=pv_tmp[p]->pv_number;
             if ( ( pv_this = realloc ( pv_this,
@@ -111,5 +112,4 @@ int pv_read_all_pv_of_vg ( char *vg_name
             }
-            pv_this[np] = pv_tmp[p];
-            pv_this[np+1] = NULL;
-            np++;
+            pv_this[pv_tmp[p]->pv_number-1] = pv_tmp[p];
+            //pv_this[np+1] = NULL; // XXX???
          }