dma error at boot time in 3.3

[marlon corleone <mmp6107625@yahoo.com>]

hi, im a FreeBSD user before, now im trying to shift
to OpenBSD when i boot the first cd, i get this error:

 pciide0:0:0  busmaster DMA error: missing interrupt,
 status = 0 x21

i searched in google.com, i found thesame problem but
there were no solution for the particular error.

in FreeBSD 4.8, i have thesame problem but i managed
to solved it, putting an entry in initial
installation.

first i boot the fbsd cd: press taskbar then enter:

   set hw.ata.ata_dma="0"

after that it boot normally bypassing the dma error, i
installed fbsd, i think this problem in openBSD is
much thesame but when i apply that entry when i boot,
it did not work.

i hope anyone can help, my motherboard is a P4S 533-E
with 80 gig of HDD and SIS 645 chipset.

thanks



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