Doug Ledford wrote:
> If that fixes it, then the real fix is to find the bug in
> i810_get_free_Wwrite_space() and i810_update_lvi().
It does fix it.
By the way, I'm confused about something. i810_write appears to overrun
the end of the DMA buffer instead of wrapping around to the beginning
when it does copy_from_user. which makes no sense to me.
so ok, the correct number is 31/32nds, not 3/4ths - not so bad.
> By using the first function to find the available data in the GETOPTR
> ioctl, then using update_lvi(), we *should* be setting the lvi
> fragment to exactly 31 sg segments away from the current index. If
> that's failing, and we are instead setting lvi == civ, then things
> will stop and not work.
yeah, i think that's what's happening
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Dec 07 2001 - 21:00:30 EST