Messages in this thread | | | Subject | Re: Rampant ext3/4 corruption on 2.6.34-rc7 with VIVT ARM (Marvell 88f5182) | From | Benjamin Herrenschmidt <> | Date | Tue, 11 May 2010 20:47:58 +1000 |
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On Tue, 2010-05-11 at 11:16 +0100, Jamie Lokier wrote: > > I've seen similar ext3 corruption errors with an IDE on a Sigma > Designs EM8620 with ARM core. It's completely unrelated :-) But the > fault was in the IDE driver doing cache flushes too late after > starting to set up DMA. To diagnose it, we luckily found a > reproducible test case, then sprinkled full cache flushes at various > places to narrow it down, and eventually found that one full cache > flush in the driver itself sorted it out, which told us where the > fault was. From there it was easy.
Ok, well, that's -a- possibility... we'll see. I'm doing some more tests to try to characterize the problem a bit better, then we can play with the driver. I think it's also worth trying with earlier kernels in case it's some kind of regression, though that means I'll have to backport my board support for that little box :-)
Cheers, Ben.
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