D37082.diff
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	diff --git a/sys/x86/x86/busdma_bounce.c b/sys/x86/x86/busdma_bounce.c
	--- a/sys/x86/x86/busdma_bounce.c
	+++ b/sys/x86/x86/busdma_bounce.c
	@@ -325,6 +325,7 @@
	if ((dmat->bounce_flags & BUS_DMA_MIN_ALLOC_COMP) == 0 \|\|
	(bz->map_count > 0 && bz->total_bpages < maxpages)) {
	pages = MAX(atop(dmat->common.maxsize), 1);
	+ pages = MIN(dmat->common.nsegments, pages);
	pages = MIN(maxpages - bz->total_bpages, pages);
	pages = MAX(pages, 1);
	if (alloc_bounce_pages(dmat, pages) < pages)