[Top] [All Lists]

Re: XFS support for ARMv5

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: XFS support for ARMv5
From: Richard Sharpe <realrichardsharpe@xxxxxxxxx>
Date: Wed, 25 Nov 2009 14:29:00 -0800
Cc: Andy Poling <andy@xxxxxxxxxxx>, Ofer Heifetz <oferh@xxxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=shwp2YD1oA8ojsgddilMEIBZ33ROnNmDX2vIPuQebjM=; b=DOtDGW9LT4gQDlz+ES8Ts4JoILY2boWiTJK/7cMjUjM9DQayueM01qlF5evjlleKdw 41irHJf6YICbIJdQmaZNOm+lZuUsCmud/K4PXqPL4FN8bn2Ezs/tXDLKitivyPddRKBl ZdMqo91pWN5Z8B1oI+9oRMyXldK4uxh7mQM/k=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=GuEUNzIFTlu6s6zO0xgILkyOFhNq/Nu4NSDUHDqCIaeeUDrgBXVuPC6NQZ0m3SQlaN P6/cBMpbw5MdTerEPbPHVEpSNhRJ8Dxs/bR9uR+C+St9CgQx5FYsKJdmh3niQ1Z9SSuV D8iNsaoC2/c2UkRMCajjj3R/q3Pg1MwMlKk+8=
In-reply-to: <20091125210611.GA12150@xxxxxxxxxxxxx>
References: <14274282.01258546868484.JavaMail.root@wombat> <4B041AEE.4040506@xxxxxxxxxxx> <EE71107DF0D1F24FA2D95041E64AB9E8985A59F17F@xxxxxxxxxxxxxxxxxxx> <4B096C6E.8010508@xxxxxxxxxxx> <EE71107DF0D1F24FA2D95041E64AB9E8985A59F31F@xxxxxxxxxxxxxxxxxxx> <alpine.DEB.2.00.0911251025490.28890@andydesk> <20091125210611.GA12150@xxxxxxxxxxxxx>
On Wed, Nov 25, 2009 at 1:06 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
> On Wed, Nov 25, 2009 at 10:30:09AM -0600, Andy Poling wrote:
>> On Mon, 23 Nov 2009, Ofer Heifetz wrote:
>>> Here is the dmesg I got for mount /dev/sda3 /mnt/usb:
>>> SGI XFS with ACLs, security attributes, large block/inode numbers, no debug 
>>> enabled
>>> XFS mounting filesystem sda3
>>> Starting XFS recovery on filesystem: sda3 (logdev: internal)
>>> XFS: xlog_recover_process_data: bad clientid
>>> XFS: log mount/recovery failed: error 5
>>> XFS: log mount failed
>> See this thread in the archives for a patch that may fix this:
>>       http://oss.sgi.com/pipermail/xfs/2009-October/042805.html
> I don't think it's the case you found, although the symptoms are the
> same.  I'd rather guess this is a case of an architecture with virtually
> indexed caches (can anyone confirm the cache architecture?) which

The Marvell 78xx series uses a VIVT cache. I will have to consult the
documentation about the 6281 (I think that was it).

> doesn't cope too well with the way we use vmap to write into a buffer
> through virtually mapped linear addresses, but then do block I/O using
> the physical addresses of the individual pages.  James Bottomley has a
> patchset to fix this issue by introducing APIs that allow the
> architecture specific memory management to cope with it.  He're a
> version I could quickly find, although newer ones have been posted
> since:
>        http://thread.gmane.org/gmane.linux.kernel.cross-arch/4364
> The patchset is planned to get merged into Linux 2.6.33.
> _______________________________________________
> xfs mailing list
> xfs@xxxxxxxxxxx
> http://oss.sgi.com/mailman/listinfo/xfs

Richard Sharpe

<Prev in Thread] Current Thread [Next in Thread>