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| /freebsd-11-stable/sys/x86/x86/ | ||
| H A D | busdma_bounce.c | diff 110335 Tue Feb 04 14:30:27 MST 2003 harti Fix a problem in bus_dmamap_load_{mbuf,uio} when the first mbuf or the first uio segment is empty. In this case no dma segment is create by bus_dmamap_load_buffer, but the calling routine clears the first flag. Under certain combinations of addresses of the first and second mbuf/uio buffer this leads to corrupted DMA segment descriptors. This was already fixed by tmm in sparc64/sparc64/iommu.c. PR: kern/47733 Reviewed by: sam Approved by: jake (mentor) |
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