Messages in this thread | | | Date | Sun, 4 Jan 2009 11:44:25 +0000 | From | Alan Cox <> | Subject | Re: XFS internal error xfs_da_do_buf(1) at line 2015 of file fs/xfs/xfs_da_btree.c |
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> On Debian based systems you can add -W0 to /etc/default/hdparm and > it gets executed before the root filesystem is remounted read-write, > I'm not sure how other distributions handle it.
Generally they avoid setting -W0 because it ruins performance and can be very bad for disk lifetime. The barriers code is there for a reason.
Of course certain distributions default to using LVM for all their file systems which is completely and mindbogglingly bogus. That both messes up barriers in some cases and takes a good 10-20% off performance when I've benched it.
LVM is cool - if you need it, most people don't.
Alan
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