Messages in this thread | | | Date | Tue, 09 Nov 2004 07:43:56 -0800 | From | "Martin J. Bligh" <> | Subject | Re: Blast and data miscompare |
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--Jake Moilanen <moilanen@austin.ibm.com> wrote (on Tuesday, November 09, 2004 09:34:00 -0600):
>> I have tried searching on this issue, but found nothing. I heard from a >> kernel developer at work that a memory error was discovered recently in >> the linux 2.6 kernel that causes data miscompare errors in the generic >> scsi driver when executing blast tests. >> >> Does anyone know more about this??? > > Not sure if it's the same problem. But we were seeing a miscompare on > 2.4 due to a incorrect COW happening, followed by a hardware hash hole > w/ PPC64. > > To fix it we had to make sure that the PTE was cleared and the TLB's > flushed before the new PTE was established. > > Martin, was this fixed on 2.6?
Yup, was already fixed in 2.6, and is PPC64 only. Most of those errors tend to be caused by IO problems ...
M.
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