[Linux-ia64] CMD649 driver in 2.5.5x

David Mosberger
2003-01-30T16:37:12Z

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