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From: Ross Biro <rossb@google.com>
To: linux-kernel@vger.kernel.org
Subject: [2.4.21-pre3] BUG: IDE DMA doesn't work w/ x86 HighMem
Date: Fri, 10 Jan 2003 09:04:39 -0800	[thread overview]
Message-ID: <3E1EFD27.5010008@google.com> (raw)


Configure the 2.4.21-pre3 kernel with IDE and Highmem and when DMA is 
attempted you get a BUG from asm-i386/pci.h line 155 called from 
drives/ide/ide-dma.c line 282.  

 From the looks of it, the IDE driver has not been highmem enabled, but 
does get a high-mem device queue.  

This is easily reproduced on a dual proc P3 with 2 Gigs of ram.

    Ross



                 reply	other threads:[~2003-01-10 16:56 UTC|newest]

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