From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Mosberger <davidm@napali.hpl.hp.com>
Date: Thu, 30 Jan 2003 16:37:12 +0000
Subject: [Linux-ia64] CMD649 driver in 2.5.5x
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To: linux-ia64@vger.kernel.org

As of 2.5.59, the CMD649 IDE driver is still completely hosed.  It
reliably corrupts filesystems and trying to turn on DMA mode on a
zx1-based machine will cause an I/O TLB error.  The backtrace starts
like this:

 [<e0000000048c4b50>] sba_map_sg+0x410/0x7a0 sp=0xe00000003d6afc90 bsp=0xe00000003d6a94d0
 [<e0000000047de490>] ide_build_dmatable+0x330/0x340 sp=0xe00000003d6afcb0 bsp=0xe00000003d6a9478
 [<e0000000047defd0>] ide_start_dma+0x50/0x1a0 sp=0xe00000003d6afcb0 bsp=0xe00000003d6a9438
 [<e0000000047df190>] __ide_dma_read+0x70/0x260 sp=0xe00000003d6afcb0 bsp=0xe00000003d6a9400
 [<e0000000047c64e0>] do_rw_disk+0x4a0/0x1220 sp=0xe00000003d6afcb0 bsp=0xe00000003d6a9358

Someone want to take a look?

	--david