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Re: proposal for bus_dma(9) change
On 5-Mar-09, at 2:55 PM, Andrew Doran wrote:
Sure. I can buy "make it explode in the developers face"... I can't
buy "let the DMA engine write to a bogus non-zero address if the guy
I have no idea how you made that connection.
yeah. That was clear in my head but not in my email... I just tracked
down a bug in local code where a dmamap entry failed to
bus_dmamap_load and hence my SG engine trampled on an mbuf that had
since become re-used and was in the IP stack... Someone wasn't
checking the result of a dmamap_load. So then we got talking here
about error handling in dmamap_create...
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