[PVE-User] zfs 0.7.7

Fabian Grünbichler f.gruenbichler at proxmox.com
Tue Apr 10 13:19:23 CEST 2018

On Tue, Apr 10, 2018 at 11:09:34AM +0000, Lindsay Mathieson wrote:
> I notice that zfs 0.7.7 has arrived in the no-sub repo – it has a reasonably serious dataloss bug:
>   https://github.com/zfsonlinux/zfs/issues/7401
> 0.7.8 has been released with a fix:
>   https://github.com/zfsonlinux/zfs/releases/tag/zfs-0.7.8

as already discussed on this very same list:

> we already released new kernels with a fixed ZFS module yesterday, and
> the affected one has only been available in pvetest before being
> superceded by the patched one.
> the bug also looks unlikely to trigger on PVE systems, since you need to
> create lots of files in a short time in one directory with a filename
> pattern that triggers collisions. it triggered easier on CentOS systems
> because their version of coreutil's 'cp' randomized the order of copied
> files in a recursive copy operation (thus potentially randomly hitting a
> filename sequence that triggers).
> analysis is not yet complete though, so upgrading is recommended in case
> you installed the broken version from pvetest.
> affected (only those specific packages and versions!):
> pve-kernel-4.15.15-1-pve in version 4.15.15-5
> pve-kernel-4.13.16-1-pve in version 4.13.16-46
> fixed (and everything afterwards):
> pve-kernel-4.15.15-1-pve in version 4.15.15-6
> pve-kernel-4.13.16-2-pve in version 4.13.16-47

the bug is only in the kernel module code, so the ZFS user space
packages have not been updated (and don't need to be in PVE's case).

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