Re: really strange ext4 behavior

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> >> (except for ext3, where, for data integrity with a volatile writeback
> >> cache, defaults + barriers=1, since that safe default was never accepted
> >> upstream)
> > 
> > Why isn't it the Fedora default?
> 
> Excellent question - we probably should flip it over in fedora to the safe
> default.
> 
> Historically, there were times that applications got fsync happy (like
> firefox) and basically stopped working when barriers were enabled (only
> because they were waiting for the fsync to actually do something).
> 
> I believe that we have exposed most of this kind of thing by now after
> years of default ext4 use so this should be mostly resolved,

weren't barriers kicked out with kernel 2.6.37?

see
http://kernelnewbies.org/Linux_2_6_37#head-9d59a04087857adeda842dd4ed97f00abd824e23
and
http://lwn.net/Articles/400541/

Kind regards,

Gerd

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