Messages in this thread | | | Date | Mon, 13 Sep 2004 20:45:39 -0700 | From | Joshua Schmidlkofer <> | Subject | Re: [ck] Re: 2.6.8.1-ck7, Two Badnessess, one dump. |
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>Is your drive idle while applying dma settings? Current 2.6 kernels >aren't even close to being safe to modify drive settings, since it makes >no effective attempts to serialize with ongoing commands. I have a >half-assed patch to fix that. > > >
No it isn't!! But I think that would be the problem. I just realized that [after you wrote this] that I turned on 'parallel' execution in my Gentoo init scripts for both of those systems.
Tonight, I am going to change hdparm so that it runs xfs_freeze on all fs's just before tuning, and [of course un-freeze] to see if that cures it.
thanks, Joshua
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