From: Patrick Caulfield <patrick@tykepenguin.com>
To: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] O_DIRECT on devices
Date: Mon, 15 Jul 2002 14:57:57 +0100 [thread overview]
Message-ID: <20020715135757.GM808@tykepenguin.com> (raw)
In-Reply-To: <20020715122919.F27706@parcelfarce.linux.theplanet.co.uk>
On Mon, Jul 15, 2002 at 12:29:19PM +0100, Matthew Wilcox wrote:
> On Mon, Jul 15, 2002 at 01:42:19AM -0600, Grant Grundler wrote:
> > Randolph and I think most SMP bugs reported (and we seen ourselves)
> > suggest a D-cache problem.
>
> Entirely plausible. PA has bigger virtually indexed caches than anyone
> else, so we're more susceptible to cache aliasing bugs than anyone else.
> It could be a missing flush somewhere in the arch-independent code.
My machine isn't SMP but could a similar bug cause the problem to occur between
the CPU and the DMA controller of the SCSI card ?
patrick
next prev parent reply other threads:[~2002-07-15 13:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-11 8:22 [parisc-linux] O_DIRECT on devices Patrick Caulfield
[not found] ` <3D2D4B4B.4010705@deaprofessionale.it>
2002-07-11 9:35 ` Patrick Caulfield
2002-07-15 2:46 ` Matthew Wilcox
2002-07-15 7:42 ` Grant Grundler
2002-07-15 11:29 ` Matthew Wilcox
2002-07-15 13:57 ` Patrick Caulfield [this message]
2002-07-15 14:10 ` Matthew Wilcox
2002-07-15 14:23 ` Patrick Caulfield
-- strict thread matches above, loose matches on Subject: below --
2002-08-13 13:23 [parisc-linux] HP9000/L2000 + FC60 Fiber Support António Ribeiro
2002-08-13 13:29 ` Matthew Wilcox
2002-08-15 6:01 ` Grant Grundler
2003-07-18 5:27 [parisc-linux] cvs [login aborted]? Joel Soete
2003-07-18 11:21 ` Matthew Wilcox
2003-07-18 14:44 ` bame
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