Date: Wed, 24 Apr 2013 06:34:57 +0000 (UTC) From: "Cherry G. Mathew" <cherry@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r249831 - projects/amd64_xen_pv/sys/amd64/xen Message-ID: <201304240634.r3O6YvX4096685@svn.freebsd.org>
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Author: cherry Date: Wed Apr 24 06:34:56 2013 New Revision: 249831 URL: http://svnweb.freebsd.org/changeset/base/249831 Log: Scan the proper lower table before detaching it from the paging hierarchy and freeing it. Approved by: gibbs (implicit) Modified: projects/amd64_xen_pv/sys/amd64/xen/mmu_map.c Modified: projects/amd64_xen_pv/sys/amd64/xen/mmu_map.c ============================================================================== --- projects/amd64_xen_pv/sys/amd64/xen/mmu_map.c Wed Apr 24 06:05:33 2013 (r249830) +++ projects/amd64_xen_pv/sys/amd64/xen/mmu_map.c Wed Apr 24 06:34:56 2013 (r249831) @@ -492,7 +492,7 @@ mmu_map_release_va(struct pmap *pm, void } /* We can free the PDT only after the PDPT entry is zapped */ - if (memcchr(pti->pt, 0, PAGE_SIZE) == NULL) { + if (memcchr(pti->pdt, 0, PAGE_SIZE) == NULL) { pdptep_ma = xpmap_ptom(pti->ptmb.vtop((uintptr_t)pdptep)); xen_queue_pt_update(pdptep_ma, 0); xen_flush_queue(); @@ -534,7 +534,7 @@ mmu_map_release_va(struct pmap *pm, void return; } - if (memcchr(pti->pt, 0, PAGE_SIZE) == NULL) { + if (memcchr(pti->pdpt, 0, PAGE_SIZE) == NULL) { pml4tep_ma = xpmap_ptom(pti->ptmb.vtop((uintptr_t)pml4tep) ); xen_queue_pt_update(pml4tep_ma, 0);
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