From: Christoph Hellwig <hch@infradead.org>
To: linux-ia64@vger.kernel.org
Subject: Re: Problem booting Adaptec Ultra 320 driver with discontigmem support.
Date: Thu, 04 Dec 2003 13:11:43 +0000 [thread overview]
Message-ID: <marc-linux-ia64-107054357725969@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-107054139923799@msgid-missing>
On Thu, Dec 04, 2003 at 01:37:21PM +0100, Xavier Bru wrote:
> Hello, all
>
> Running 2.6.0-test11 with Adaptec Ultra 320 driver that provides full
> 64-bit support
> we hit a BUG in blk_queue_bounce_limit() due to physical address greater
> than allowed by the dma mask.
> Having a look into the code, it appears that the computation to allow
> full 64-bit support takes in account the size of the installed memory
> instead of the max physical address of the platform.
> For example on a platform with 32GB of memory distributed in 1 TB
> physical address space, only 39-bits physical addresses are supported
> instead of the 40 bits needed.
Still the wrong thing to do. It should just check sizeof(dma_addr_t), that
the only sane check.
next prev parent reply other threads:[~2003-12-04 13:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-04 12:37 Problem booting Adaptec Ultra 320 driver with discontigmem support Xavier Bru
2003-12-04 13:01 ` Xavier Bru
2003-12-04 13:11 ` Christoph Hellwig [this message]
2003-12-04 19:04 ` Grant Grundler
2003-12-05 7:21 ` Xavier Bru
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