From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Nicolas Pitre <nico@fluxnic.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
linux-mmc@vger.kernel.org, Hemanth V <hemanthv@ti.com>,
saeed bishara <saeed.bishara@gmail.com>,
pierre@ossman.eu, linux-arm-kernel@lists.infradead.org
Subject: Re: Highmem issues with MMC filesystem
Date: Fri, 19 Mar 2010 18:38:20 +0000 [thread overview]
Message-ID: <20100319183820.GB27710@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <alpine.LFD.2.00.1003191359440.31128@xanadu.home>
On Fri, Mar 19, 2010 at 02:27:24PM -0400, Nicolas Pitre wrote:
> But on ARMv6 this is different. The L1 cache is VIPT and it therefore
> doesn't have to be flushed as often as a VIVT cache. Still, as far as I
> know, the highmem code currently always flush any page to be unmapped.
> But somewhere somehow an unmapped highmem page becomes subject to DMA
> and apparently can still be L1 cached.
This does not explain the corrupted ext2 metadata, which is in lowmem
pages.
Let's get a fresh set of clear bug reports giving all relevant information.
Let's not continue to scatter small little bits of information in multiple
emails.
>From now on, I'm ignoring this thread completely; it's a waste of time
to continue with it.
next prev parent reply other threads:[~2010-03-19 18:39 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-17 13:40 Highmem issues with MMC filesystem Hemanth V
2010-03-17 13:49 ` Nicolas Pitre
2010-03-17 14:40 ` Hemanth V
2010-03-17 14:58 ` Nicolas Pitre
2010-03-18 9:23 ` Russell King - ARM Linux
2010-03-18 11:15 ` saeed bishara
2010-03-18 11:24 ` Russell King - ARM Linux
2010-03-18 13:20 ` Nicolas Pitre
2010-03-18 13:30 ` Shilimkar, Santosh
2010-03-18 14:19 ` Russell King - ARM Linux
2010-03-18 14:41 ` Hemanth V
2010-03-18 16:17 ` Nicolas Pitre
2010-03-18 17:51 ` Russell King - ARM Linux
2010-03-18 19:24 ` Nicolas Pitre
2010-03-19 1:55 ` Jamie Lokier
2010-03-19 13:17 ` Nicolas Pitre
2010-03-19 13:27 ` Russell King - ARM Linux
2010-03-19 17:59 ` Nicolas Pitre
2010-03-19 18:26 ` Catalin Marinas
2010-03-19 18:56 ` Nicolas Pitre
2010-03-19 14:28 ` Hemanth V
2010-03-19 14:36 ` Shilimkar, Santosh
2010-03-19 14:45 ` Russell King - ARM Linux
2010-03-19 14:41 ` Catalin Marinas
2010-03-19 14:46 ` Russell King - ARM Linux
2010-03-19 14:52 ` Catalin Marinas
2010-03-19 14:54 ` Russell King - ARM Linux
2010-03-19 16:46 ` Catalin Marinas
2010-03-19 16:52 ` Russell King - ARM Linux
2010-03-19 17:47 ` Nicolas Pitre
2010-03-19 18:27 ` Nicolas Pitre
2010-03-19 18:38 ` Russell King - ARM Linux [this message]
2010-03-19 18:51 ` Nicolas Pitre
2010-03-22 11:45 ` Russell King - ARM Linux
2010-03-22 12:36 ` Nicolas Pitre
2010-03-19 20:14 ` Nicolas Pitre
2010-03-22 9:05 ` Hemanth V
2010-03-22 12:50 ` Nicolas Pitre
2010-03-18 13:42 ` saeed bishara
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