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Bug
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Resolution: Won't Do
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Major
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None
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rhel-9.4
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None
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None
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Moderate
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rhel-sst-logical-storage
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ssg_filesystems_storage_and_HA
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1
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False
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None
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None
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None
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None
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x86_64
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None
This test scenario that corrupts a portion of the _tmeta volume and then repairs it with lvconvert, is now failing in RHEL9.3 and RHEL9.4. This previously passed in RHEL9.2 and earlier releases. Did something change wrt where data is held on this device such that the dd is corrupting differently now?
# RHEL9.2 kernel-5.14.0-284.40.1.el9_2 BUILT: Wed Nov 1 03:22:35 PM CET 2023 lvm2-2.03.17-7.el9 BUILT: Thu Feb 16 03:24:54 PM CET 2023 lvm2-libs-2.03.17-7.el9 BUILT: Thu Feb 16 03:24:54 PM CET 2023 [root@virt-002 ~]# lvcreate --yes --thinpool POOL -L 1G --profile thin-performance --zero y --poolmetadatasize 4M snapper_thinp Thin pool volume with chunk size 64.00 KiB can address at most <15.88 TiB of data. Logical volume "POOL" created. [root@virt-002 ~]# lvcreate --yes --virtualsize 1G -T snapper_thinp/POOL -n origin Logical volume "origin" created. # corrupt a portion of the meta volume [root@virt-002 ~]# dd if=/dev/urandom of=/dev/mapper/snapper_thinp-POOL_tmeta count=512 seek=4096 bs=1 512+0 records in 512+0 records out 512 bytes copied, 0.00269735 s, 190 kB/s [root@virt-002 ~]# vgchange -an snapper_thinp 0 logical volume(s) in volume group "snapper_thinp" now active [root@virt-002 ~]# lvconvert --yes --repair snapper_thinp/POOL /dev/sdb WARNING: LV snapper_thinp/POOL_meta0 holds a backup of the unrepaired metadata. Use lvremove when no longer required. WARNING: New metadata LV snapper_thinp/POOL_tmeta might use different PVs. Move it with pvmove if required. [root@virt-002 ~]# lvs -a -o +devices LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices POOL snapper_thinp twi---tz-- 1.00g POOL_tdata(0) POOL_meta0 snapper_thinp -wi------- 4.00m /dev/sdf(0) [POOL_tdata] snapper_thinp Twi------- 1.00g /dev/sda(1) [POOL_tmeta] snapper_thinp ewi------- 4.00m /dev/sda(0) [lvol1_pmspare] snapper_thinp ewi------- 4.00m /dev/sdb(0) origin snapper_thinp Vwi---tz-- 1.00g POOL # RHEL9.4 kernel-5.14.0-362.8.1.el9_3 BUILT: Tue Oct 3 02:39:10 PM CEST 2023 lvm2-2.03.23-1.el9 BUILT: Tue Nov 28 02:15:42 PM CET 2023 lvm2-libs-2.03.23-1.el9 BUILT: Tue Nov 28 02:15:42 PM CET 2023 [root@virt-125 ~]# lvcreate --yes --thinpool POOL -L 1G --profile thin-performance --zero y --poolmetadatasize 4M snapper_thinp Thin pool volume with chunk size 64.00 KiB can address at most <15.88 TiB of data. Logical volume "POOL" created. [root@virt-125 ~]# lvcreate --yes --virtualsize 1G -T snapper_thinp/POOL -n origin Logical volume "origin" created. # corrupt a portion of the meta volume [root@virt-125 ~]# dd if=/dev/urandom of=/dev/mapper/snapper_thinp-POOL_tmeta count=512 seek=4096 bs=1 512+0 records in 512+0 records out 512 bytes copied, 0.00266924 s, 192 kB/s [root@virt-125 ~]# vgchange -an snapper_thinp 0 logical volume(s) in volume group "snapper_thinp" now active [root@virt-125 ~]# lvconvert --yes --repair snapper_thinp/POOL /dev/sdb no compatible roots found Repair of thin metadata volume of thin pool snapper_thinp/POOL failed (status:64). Manual repair required! [root@virt-125 ~]# lvs -a -o +devices LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices POOL snapper_thinp twi---tz-- 1.00g POOL_tdata(0) [POOL_tdata] snapper_thinp Twi------- 1.00g /dev/sda(1) [POOL_tmeta] snapper_thinp ewi------- 4.00m /dev/sdf(0) [lvol0_pmspare] snapper_thinp ewi------- 4.00m /dev/sda(0) origin snapper_thinp Vwi---tz-- 1.00g POOL
