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Date: Tue, 11 May 2010 11:16:20 +0100 From: Jamie Lokier <jamie@...reable.org> To: Benjamin Herrenschmidt <benh@...nel.crashing.org> Cc: linux-kernel@...r.kernel.org, Nicolas Pitre <nico@...vell.com>, Saeed Bishara <saeed@...vell.com>, "James E.J. Bottomley" <jejb@...isc-linux.org>, Andrew Morton <akpm@...ux-foundation.org>, linux-ext4@...r.kernel.org, linux-arm-kernel@...ts.infradead.org Subject: Re: Rampant ext3/4 corruption on 2.6.34-rc7 with VIVT ARM (Marvell 88f5182) Benjamin Herrenschmidt wrote: > On the other hand, it could also be a busticated marvell SATA driver :-) 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. -- Jamie -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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