Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sun, 13 Jul 2003 08:51:18 -0700 | From | Andreas Dilger <> | Subject | Re: 2.5 'what to expect' |
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On Jul 12, 2003 20:46 +0100, Jamie Lokier wrote: > Jeff Garzik wrote: > > Jamie Lokier wrote: > > >2.4 fails on write()? A strace of "rpm --rebuilddb" shows it is > > >opening with O_DIRECT and writing just fine. Or does that only work > > >with RedHat's 2.4 kernels? > > > > Are you testing on a filesystem where an O_DIRECT is not supported? > > The "it works" case is not an issue. > > ext3.
ext3 in 2.4 kernels does not support O_DIRECT. To confuse matters, recent RH kernels silently ignore O_DIRECT if you are not root, so you may think O_DIRECT is being used, but it isn't.
Cheers, Andreas -- Andreas Dilger http://sourceforge.net/projects/ext2resize/ http://www-mddsp.enel.ucalgary.ca/People/adilger/
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