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Description of problem: This was a cmirror test case: SCENARIO - [looping_mirror_log_converts] Create a core log mirror and then convert it's log from core to disk to mirrored 20 times grant-03: lvcreate -m 1 -n mirror_log_convert --mirrorlog core -l 19180 mirror_sanity /dev/sdb3 /dev/sdb2 /dev/sdb1 /dev/sdc3 Convert loop 1 Convert to disk log grant-01: lvconvert -m 1 --mirrorlog disk /dev/mirror_sanity/mirror_log_convert Internal error: _alloc_parallel_area called without any allocation to do. Internal error: _alloc_parallel_area called without any allocation to do. Internal error: _alloc_parallel_area called without any allocation to do. Insufficient suitable allocatable extents for logical volume : 0 more required Unable to allocate extents for mirror log. converting to disk log failed Here the test case step by step: [root@grant-01 ~]# vgs VG #PV #LV #SN Attr VSize VFree mirror_sanity 6 0 0 wz--nc 476.80g 476.80g [root@grant-01 ~]# lvcreate -m 1 -n mirror_log_convert --mirrorlog core -l 19180 mirror_sanity /dev/sdb3 /dev/sdb2 /dev/sdb1 /dev/sdc3 Logical volume "mirror_log_convert" created [root@grant-01 ~]# lvs -a -o +devices LV VG Attr LSize Log Copy% Devices mirror_log_convert mirror_sanity mwi-a- 74.92g 1.24 mirror_log_convert_mimage_0(0),mirror_log_convert_mimage_1(0) [mirror_log_convert_mimage_0] mirror_sanity Iwi-ao 74.92g /dev/sdc3(0) [mirror_log_convert_mimage_0] mirror_sanity Iwi-ao 74.92g /dev/sdb2(0) [mirror_log_convert_mimage_1] mirror_sanity Iwi-ao 74.92g /dev/sdb3(0) [mirror_log_convert_mimage_1] mirror_sanity Iwi-ao 74.92g /dev/sdb1(0) [root@grant-01 ~]# pvscan PV /dev/sdc3 VG mirror_sanity lvm2 [90.82 GiB / 22.71 GiB free] PV /dev/sdc2 VG mirror_sanity lvm2 [90.82 GiB / 90.82 GiB free] PV /dev/sdc1 VG mirror_sanity lvm2 [90.82 GiB / 90.82 GiB free] PV /dev/sdb3 VG mirror_sanity lvm2 [68.11 GiB / 0 free] PV /dev/sdb2 VG mirror_sanity lvm2 [68.11 GiB / 61.30 GiB free] PV /dev/sdb1 VG mirror_sanity lvm2 [68.11 GiB / 61.30 GiB free] [root@grant-01 ~]# lvconvert -m 1 --mirrorlog disk /dev/mirror_sanity/mirror_log_convert Internal error: _alloc_parallel_area called without any allocation to do. Internal error: _alloc_parallel_area called without any allocation to do. Internal error: _alloc_parallel_area called without any allocation to do. Insufficient suitable allocatable extents for logical volume : 0 more required Unable to allocate extents for mirror log. Version-Release number of selected component (if applicable): 2.6.32-195.el6.x86_64 lvm2-2.02.87-2.1.el6 BUILT: Wed Sep 14 09:44:16 CDT 2011 lvm2-libs-2.02.87-2.1.el6 BUILT: Wed Sep 14 09:44:16 CDT 2011 lvm2-cluster-2.02.87-2.1.el6 BUILT: Wed Sep 14 09:44:16 CDT 2011 udev-147-2.38.el6 BUILT: Fri Sep 9 16:25:50 CDT 2011 device-mapper-1.02.66-2.1.el6 BUILT: Wed Sep 14 09:44:16 CDT 2011 device-mapper-libs-1.02.66-2.1.el6 BUILT: Wed Sep 14 09:44:16 CDT 2011 device-mapper-event-1.02.66-2.1.el6 BUILT: Wed Sep 14 09:44:16 CDT 2011 device-mapper-event-libs-1.02.66-2.1.el6 BUILT: Wed Sep 14 09:44:16 CDT 2011 cmirror-2.02.87-2.1.el6 BUILT: Wed Sep 14 09:44:16 CDT 2011 How reproducible: Every time
Fix checked in upstream in Version 2.02.89.
No longer seeing the "_alloc_parallel_area called without any allocation to do" error. Marking verified. SCENARIO - [looping_mirror_log_converts] Create a core log mirror and then convert it's log from core to disk to mirrored 20 times taft-04: lvcreate -m 1 -n mirror_log_convert --mirrorlog core -l 19100 mirror_sanity /dev/sdh2 /dev/sdh1 /dev/sdg2 /dev/sdg1 Skipping redundant logged cmirrors are not supported Convert loop 1 Convert to disk log taft-02: lvconvert -m 1 --mirrorlog disk /dev/mirror_sanity/mirror_log_convert Verifying that mirror redundancy isn't lost Convert back to core log [...] Convert loop 20 Convert to disk log taft-03: lvconvert -m 1 --mirrorlog disk /dev/mirror_sanity/mirror_log_convert Verifying that mirror redundancy isn't lost Convert back to core log Deactivating mirror mirror_log_convert... and removing 2.6.32-198.el6.x86_64 lvm2-2.02.87-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 lvm2-libs-2.02.87-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 lvm2-cluster-2.02.87-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 udev-147-2.38.el6 BUILT: Fri Sep 9 16:25:50 CDT 2011 device-mapper-1.02.66-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 device-mapper-libs-1.02.66-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 device-mapper-event-1.02.66-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 device-mapper-event-libs-1.02.66-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 cmirror-2.02.87-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011
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Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2011-1522.html