Critical ZFS bug 6214 in L2Arc module

[gea]

Critical ZFS bug 6214 in L2Arc module

There is a critical bug in current OpenZFS in L2Arc cache modul
that can lead to data corruption.

affected distributiones: current OpenZFS

suggested action:
- remove L2Arc
- check pool (scrub, dbd)


illumos IRC logs [September 12 - 2015]
OmniOS Discussion ()

 

[gea]

Fix is on the way
Bug #6214: zpools going south - illumos gate - illumos.org

 

[gea]

Update

A fix is available for OmniOS 151014 at
ReleaseNotes/r151014
Please update (requires a reboot)

more: about how to handle the problem:
OmniOS Discussion ()
(read comments, comment at OmniOS discuss if you have additional insights)

 

[smithse79]

Does this affect ZOL?

 

[gea]

I suppose no as the improvement about reduced memory needs of L2Arc is quite new in Illumos.

Outside Illumos (OmniOS, NexentaStor, SmartOS, etc), the bug may be only in development builds.
Issues · zfsonlinux/zfs · GitHub

 

[nle]

Thanks for keeping us posted Gea.

 

[gea]

I have updated the preconfigured ESXi VM
The new ova template 15d includes the L2Arc fix and TLS modules for Googlemail