On Sat, 9 Aug 2008 09:49:01 -0700 (PDT)
Matthew Dillon <dillon@apollo.backplane.com> wrote:

	Is it because this sort of thing:

    if( psz_cache )
    {
        uint8_t p_sector[DVDCSS_BLOCK_SIZE];
...
	i_ret = dvdcss->pf_read( dvdcss, p_sector, 1 );
    }

	Can leave p_sector not aligned suitably for DMA in gcc-4 ? (pf_read
winds up calling read on the DVD device with p_sector as the buffer).