Hi Zdenek,
I checked my kernel config, both of the options I set 'y', and then built kernel without CONFIG_DM_DEBUG_SPACE_MAPS and CONFIG_DM_DEBUG_BLOCK_STACK_TRACING as you said, can solve the problem I met. Thanks!
Best regards,
Busby
> -----原始邮件----- > 发件人: "Zdenek Kabelac" <zkabelac@xxxxxxxxxx> > 发送时间: 2012年2月2日 星期四 > 收件人: "device-mapper development" <dm-devel@xxxxxxxxxx> > 抄送: "Busby.Cheung" <chaimvy@xxxxxxx>, "Alasdair G Kergon" <agk@xxxxxxxxxx>, "LVM general discussion and development" <linux-lvm@xxxxxxxxxx> > 主题: Re: [dm-devel] [linux-lvm] New LVM2 release 2.02.89: Thinly-provisioned logical volumes > > Dne 2.2.2012 02:36, Busby.Cheung napsal(a): > > Hi Alasdair, > > > > The kernel mesg log "failed to resize data device" while use dmsetup CMDs to create pool will be ok. > > > > use LVM2 cmd mesgs: > > --------------------------- > > > > [root@host2 ~]# pvs > > Ignoring too small pv_min_size 512KB, using default 2048KB. > > PV VG Fmt Attr PSize PFree > > /dev/sda2 VolGroup00 lvm2 a-- 931.41G 0 > > /dev/sdg vg_pool lvm2 a-- 931.51G 931.51G > > /dev/sdl vg_pool lvm2 a-- 931.51G 931.51G > > [root@host2 ~]# vgs > > Ignoring too small pv_min_size 512KB, using default 2048KB. > > VG #PV #LV #SN Attr VSize VFree > > VolGroup00 1 2 0 wz--n- 931.41G 0 > > vg_pool 2 0 0 wz--n- 1.82T 1.82T > > [root@host2 ~]# lvcreate -L65G -T vg_pool/pool > > Ignoring too small pv_min_size 512KB, using default 2048KB. > > Rounding up size to full physical extent 4.00 MB > > device-mapper: resume ioctl on failed: Cannot allocate memory > > Unable to resume vg_pool-pool-tpool (253:12) > > Aborting. Failed to activate thin pool. > > [root@host2 ~]# dmesg > > device-mapper: space map checker: Loading debug space map from disk. This may take some time > > device-mapper: space map checker: Load complete > > device-mapper: thin: failed to resize data device > > [root@host2 ~]# cat /var/log/messages > > Feb 2 09:14:45 host2 kernel: device-mapper: space map checker: Loading debug space map from disk. This may take some time > > Feb 2 09:14:45 host2 kernel: device-mapper: space map checker: Load complete > > Feb 2 09:14:45 host2 kernel: device-mapper: thin: failed to resize data device > > > > -------------------------- > > use dmsetup cmd: > > > > [root@host2 ~]# lvcreate -n metadata_lv -L40M vg_pool > > Ignoring too small pv_min_size 512KB, using default 2048KB. > > Logical volume "metadata_lv" created > > [root@host2 ~]# lvcreate -n data_lv -L300G vg_pool > > Ignoring too small pv_min_size 512KB, using default 2048KB. > > Logical volume "data_lv" created > > [root@host2 ~]# dmsetup create pool --table "0 209715200 thin-pool /dev/vg_pool/metadata_lv /dev/vg_pool/data_lv 1024 20000" > > [root@host2 ~]# dmsetup status > > vg_pool-metadata_lv: 0 81920 linear > > VolGroup00-LogVol01: 0 24510464 linear > > vg_pool-pool-tpool: 0 136314880 thin-pool 0 76/1024 0/0 - > > vg_pool-pool_tdata: 0 136314880 linear > > VolGroup00-LogVol00: 0 1928790016 linear > > vg_pool-pool_tmeta: 0 8192 linear > > pool: 0 209715200 thin-pool 0 21/10240 0/204800 - > > vg_pool-data_lv: 0 629145600 linear > > > > [root@host2 ~]# dmesg > > device-mapper: space map checker: Loading debug space map from disk. This may take some time > > device-mapper: space map checker: Load complete > > device-mapper: thin: failed to resize data device > > device-mapper: space map checker: Loading debug space map from disk. This may take some time > > device-mapper: space map checker: Load complete > > device-mapper: space map checker: free block counts differ, checker 1020, sm-disk:948 > > device-mapper: space map checker: free block counts differ, checker 10236, sm-disk:10219 > > > > Have you tried to build kernel without CONFIG_DM_DEBUG_SPACE_MAPS and > CONFIG_DM_DEBUG_BLOCK_STACK_TRACING ? > > These two options are there only for debugging - and have major impact on > performance (and possibly on memory resource as well). > > To check consistency of metadata there are now user-space tools available. > > Zdenek
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