Nathan Scott wrote:
> On Thu, 2008-02-28 at 12:09 +1100, Barry Naujok wrote:
>   
>> Lazy superblock counters was released into mainline in 2.6.23-rc1.
>> Some  
>> distros are still running an older kernel (2.6.22 for example) and
>> with  
>>     
>
> (many distros?  RHEL5 and SLES10 wont have such recent kernels yet,
> right?)
>
>   
>> the latest xfsprogs, cannot mount a freshly made filesystem with
>> default  
>> options.
>>
>> This patch make lazy counters default back to off now.
>>     
>
> Looks good, thanks.
>
>   
>> Users who have a more recent kernel can easily enable them with mkfs
>> or  
>> xfs_admin -c1 (in a patch posted out a few days ago which will be in
>> the  
>> same xfsprogs release as this patch).
>>
>> Lazy counters will default to on again in xfsprogs 2.10.0 (when CI
>> support  
>> is released). This should give enough time for distro kernels to catch
>> up.
>>     
>
> Hmm, that still seems pretty soon to me.  I'd have thought you'd at
> least want to wait until most of the distributions (esp. SUSE for you
> guys) have released versions that have kernels sufficiently recent
> that the default mkfs will work.  Otherwise this will be a recurring
> problem.
>   
I don't suppose there is an easy way to query xfs and find out if it can 
support
the lazy SB option?

> cheers.
>
>