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| author | alc <alc@FreeBSD.org> | 2012-10-10 17:15:34 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2012-10-10 17:15:34 +0000 |
| commit | 99dca09c832a8b3e5b75d7cb0e7b52c9443df3a8 (patch) | |
| tree | 4e86190fc3cee480309db55b2acdded9ffcf7034 /sys/i386/xen/pmap.c | |
| parent | b806dc0e3e4a373918eceeedf54c56deabc03e0e (diff) | |
| download | FreeBSD-src-99dca09c832a8b3e5b75d7cb0e7b52c9443df3a8.zip FreeBSD-src-99dca09c832a8b3e5b75d7cb0e7b52c9443df3a8.tar.gz | |
MFi386 r241356
Add several asserts.
MFC after: 3 days
Diffstat (limited to 'sys/i386/xen/pmap.c')
| -rw-r--r-- | sys/i386/xen/pmap.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/i386/xen/pmap.c b/sys/i386/xen/pmap.c index 2eea8c6..7f197e5 100644 --- a/sys/i386/xen/pmap.c +++ b/sys/i386/xen/pmap.c @@ -2014,6 +2014,9 @@ pmap_pv_reclaim(pmap_t locked_pmap) pmap_pte_release(pte); if ((tpte & PG_W) != 0) continue; + KASSERT(tpte != 0, + ("pmap_pv_reclaim: pmap %p va %x zero pte", + pmap, va)); if ((tpte & PG_G) != 0) pmap_invalidate_page(pmap, va); m = PHYS_TO_VM_PAGE(tpte & PG_FRAME); @@ -2286,6 +2289,8 @@ pmap_remove_pte(pmap_t pmap, pt_entry_t *ptq, vm_offset_t va, vm_page_t *free) PMAP_LOCK_ASSERT(pmap, MA_OWNED); oldpte = *ptq; PT_SET_VA_MA(ptq, 0, TRUE); + KASSERT(oldpte != 0, + ("pmap_remove_pte: pmap %p va %x zero pte", pmap, va)); if (oldpte & PG_W) pmap->pm_stats.wired_count -= 1; /* @@ -2470,6 +2475,8 @@ pmap_remove_all(vm_page_t m) pte = pmap_pte_quick(pmap, pv->pv_va); tpte = *pte; PT_SET_VA_MA(pte, 0, TRUE); + KASSERT(tpte != 0, ("pmap_remove_all: pmap %p va %x zero pte", + pmap, pv->pv_va)); if (tpte & PG_W) pmap->pm_stats.wired_count--; if (tpte & PG_A) @@ -3533,6 +3540,8 @@ pmap_remove_pages(pmap_t pmap) PMAP_LOCK(pmap); sched_pin(); TAILQ_FOREACH_SAFE(pc, &pmap->pm_pvchunk, pc_list, npc) { + KASSERT(pc->pc_pmap == pmap, ("Wrong pmap %p %p", pmap, + pc->pc_pmap)); allfree = 1; for (field = 0; field < _NPCM; field++) { inuse = ~pc->pc_map[field] & pc_freemask[field]; |
