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| /freebsd-10.0-release/sys/i386/xen/ | ||
| H A D | pmap.c | diff 215525 Fri Nov 19 13:15:20 MST 2010 cperciva Make pmap_release consistent with pmap_pinit with respect to unpinning pages. The pinning of NPGPTD pages is #if 0ed out in pmap_pinit (I'm not quite sure why...) and this commit adds a corresponding #if 0 in pmap_release to avoid unpinning those pages. Some versions of Xen seem to silently ignore requests to unpin pages which were never pinned in the first place, but some return an error (causing FreeBSD to panic) prior to this commit. |
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