DVD playback not working

Matthew Dillon dillon at apollo.backplane.com
Sun Aug 10 09:45:23 PDT 2008

:    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).

    It's a roll of dice, really.  Neither gcc-3 nor gcc-4 guarantee any
    sort of alignment for a char array, and our kernel's physio() doesn't 
    realign the data.

    Well, I guess since nobody has bitten on fixing physio() I'll have to
    do it myself :-).  I'll do it today.

					Matthew Dillon 
					<dillon at backplane.com>

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