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[linux-lvm] Progress on LVM2 snapshots - kernel 2.6.x



Hello,

Could you please answer me what is latest status of LVM2 lvcreate/lvremove snapshots with kernel 2.6.x series ?
Why if i'm under copying some data from remote host to smb share on my
server with lvm2 logical volume and 1 or 2 snashots which is/are filled
1% and at the same time lvremove snapshot then it cause "segmentation
fault" and after that all read/write commands to that lv e.g. cp hangs up ?

With reference to:
"
In the meantime, you can apply the snapshot patches in the -udm
tree and use 'dmsetup' manually to activate and deactivate snapshots
when lvm2 fails.

Patches 8 and 9 at:

ftp://sources.redhat.com/pub/dm/patches/2.6-unstable/2.6.12-rc2/2.6.12-rc2-udm1/


(Further patches are needed, but those two plus correct dmsetup use should avoid machine lockups.)

Alasdair
"
what does it mean "correct use of dmsetup tool" and when it should be
used: before and after lvcreate or lvremove snapshot or with both ?

Thanks all for any response,
Best regards,

Hubert
hubgor poczta fm



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