diff options
| author | Dale Rahn <drahn@cvs.openbsd.org> | 2008-10-28 20:16:59 +0000 |
|---|---|---|
| committer | Dale Rahn <drahn@cvs.openbsd.org> | 2008-10-28 20:16:59 +0000 |
| commit | 747840f33ef30df6f86d63efee38b468ead5f495 (patch) | |
| tree | 185ed78b33589c0b5d2c91832836fc2e5b01c985 /sys/arch/arm | |
| parent | 824c1ad4d9c11aff19aacb7e2781949e7f7294c4 (diff) | |
Do not leave pmap_cache_state pointing to freed memory if it was the
last process running.
Diffstat (limited to 'sys/arch/arm')
| -rw-r--r-- | sys/arch/arm/arm/pmap.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/arch/arm/arm/pmap.c b/sys/arch/arm/arm/pmap.c index ba43c9042fe..3a8ecd90059 100644 --- a/sys/arch/arm/arm/pmap.c +++ b/sys/arch/arm/arm/pmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.c,v 1.18 2008/10/23 23:54:02 tedu Exp $ */ +/* $OpenBSD: pmap.c,v 1.19 2008/10/28 20:16:58 drahn Exp $ */ /* $NetBSD: pmap.c,v 1.147 2004/01/18 13:03:50 scw Exp $ */ /* @@ -249,6 +249,7 @@ struct pmap kernel_pmap_store; * XXXSCW: Fix for SMP ... */ union pmap_cache_state *pmap_cache_state; +union pmap_cache_state pmap_deadproc_cache_state; /* * Pool and cache that pmap structures are allocated from. @@ -3204,6 +3205,9 @@ pmap_destroy(pmap_t pm) LIST_REMOVE(pm, pm_list); + if (pmap_cache_state == &pm->pm_cstate) + pmap_cache_state = &pmap_deadproc_cache_state; + pmap_free_l1(pm); /* return the pmap to the pool */ |