On Wed, 17 Nov 2010 22:03:41 -0500
Mike Viau <viaum@xxxxxxxxxxxxxxx> wrote:
>
> > On Thu, 18 Nov 2010 13:32:47 +1100 <neilb@xxxxxxx> wrote:
> > > ./mdadm -Ss
> > >
> > > mdadm: stopped /dev/md127
> > >
> > >
> > > ./mdadm -Asvvv
> > >
> > > mdadm: looking for devices for further assembly
> > > mdadm: no RAID superblock on /dev/dm-3
> > > mdadm: /dev/dm-3 has wrong uuid.
> > > want UUID-084b969a:0808f5b8:6c784fb7:62659383
> > > Segmentation fault
> >
> > Try this patch instead please.
>
> Applied new patch and got:
>
> ./mdadm -Ss
>
> mdadm: stopped /dev/md127
>
>
> ./mdadm -Asvvv
> mdadm: looking for devices for further assembly
> mdadm: no RAID superblock on /dev/dm-3
> mdadm: /dev/dm-3 has wrong uuid.
> want UUID-084b969a:0808f5b8:6c784fb7:62659383
> tst=0x10dd010 sb=(nil)
> Segmentation fault
Sorry... I guess I should have tested it myself..
The
if (tst) {
Should be
if (tst && content) {
NeilBrown
>
>
> Again tried various buffer sizes (segfault above was with char buf[200];)
>
>
> if (ident->uuid_set && (!update || strcmp(update, "uuid")!= 0) &&
> (!tst || !tst->sb ||
> same_uuid(content->uuid, ident->uuid, tst->ss->swapuuid)==0)) {
> if (report_missmatch) {
> char buf[1<<16];
> fprintf(stderr, Name ": %s has wrong uuid.\n",
> devname);
> fprintf(stderr, " want %s\n", __fname_from_uuid(ident->uuid, 0, buf, ':'));
> fprintf(stderr, " tst=%p sb=%p\n", tst, tst?tst->sb:NULL);
> if (tst) {
> fprintf(stderr, " have %s\n", __fname_from_uuid(content->uuid, 0, buf, ':'));
> fprintf(stderr, " metadata=%s\n", tst->ss->name);
> }
> }
> goto loop;
> }
>
>
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