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    SubjectSCSI over USB showstopper bug?
    Hi,

    it looks as if SG_GET_RESERVED_SIZE & SG_SET_RESERVED_SIZE
    are not in interaction with the underlying SCSI transport.

    Programs like readcd and cdda2wav that try to get very large SCSI
    transfer buffers get a confirmation for nearly any SCSI transfer size
    but later when readcd/cdda2wav try to transfer data with an
    actual SCSI command, they fail with ENOMEM.

    Correct fix: let sg.c make a callback to the underlying SCSI transport
    and let it get a confirmation tfor the buffer size.

    Quick and dirty fix: reduce the maximum allowed DMA size to the smallest
    max DMA size of all SCSI transports.

    Jörg

    --
    EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
    js@cs.tu-berlin.de (uni)
    schilling@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/
    URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
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