Re: OpenZFS 2.2 -> 2.2.1 Block Cloning Bug Data Corruption

From: mike tancsa <mike_at_sentex.net>
Date: Thu, 23 Nov 2023 20:01:19 UTC 
On 11/23/2023 8:36 AM, Julien Cigar wrote:
> On Thu, Nov 23, 2023 at 01:07:33PM +0100, infoomatic wrote:
>> On 23.11.23 12:05, Julien Cigar wrote:
>>> On Thu, Nov 23, 2023 at 02:20:49AM +0100, Tomek CEDRO wrote:
>>>> https://www.phoronix.com/news/OpenZFS-2.2.1-Released
>>> Fortunately block cloning is disabled by default on 14.0-RELEASE,
>>> (see vfs.zfs.bclone_enabled)
>>>
>> I would not be too sure about that, see [1]. It seems just that with
>> this option disabled it is much harder to hit the bug.
>>
>> [1] https://github.com/openzfs/zfs/issues/15526#issuecomment-1823857131
> Ah, thanks for the link..! I hope an EN will be published ASAP then, it
> looks a serious issue..

Am I right in reading
sudo sysctl -w vfs.zfs.dmu_offset_next_sync=0

to work around the issue for now ?

     ---Mike