lv_fixrootlv: stale extent array overflow.

[OPM Marienborg]

Did extend the /var disk on one of the mirrored disk(c2t0d0) (the other removed as a backup(c2t1d0)). Did boot into single-user mode to do an extendfs, but didn't do it. Rebooted the box and this lv_fixrootlv error occour.

Then I reinserted the other disk and removed the modified disk . Booted successfully. To undo my extend, I did reinsert the modified disk and did the following:
ioscan -fnC disk
vgcfgrestore -n /dev/vg00 /dev/rdsk/c2t0d0
vgchange -a y /dev/vg00
mkboot /dev/rdsk/c2t0d0
mkboot -a "hpux -lq" /dev/rdsk/c2t0d0
lvlnboot -R
vgsync /dev/vg00

The vgsync reported a successfull resync and I did a reboot, which failed with the same error: lv_fixrootlv: stale extent array overflow.

How did this error occur? I did extend the /var-disk on only one disk. How could this affect my mirrordisk, as I did do a restore to the failing disk? How do I resolve this situation? I've seen a similar case on ITRC which got solved by reducing some extent to give dump some space. How do I proceed?

[Dineshkumar]

Hi

I believe there is cumulative patch for lvm subsystem. which might solve this issue

Regards,
Dineshkumar

[OPM Marienborg]

How do I apply this patch as this system doesn't boot at all. It crashes just after alloc_pdc_pages...

[OPM Marienborg]

got the solution, see attached file.