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| author | julian <julian@FreeBSD.org> | 2002-07-04 00:35:48 +0000 |
|---|---|---|
| committer | julian <julian@FreeBSD.org> | 2002-07-04 00:35:48 +0000 |
| commit | 16096169a68feb8b29b2f608cc77f2cbfa8cba13 (patch) | |
| tree | d2d592001be9b32e02ae267759f007c76b87a0a6 /sys | |
| parent | 9344cebfef449689ad34c1a996f338be56e5ea12 (diff) | |
| download | FreeBSD-src-16096169a68feb8b29b2f608cc77f2cbfa8cba13.zip FreeBSD-src-16096169a68feb8b29b2f608cc77f2cbfa8cba13.tar.gz | |
Don't free pages we never allocated..
My eyes openned by: Matt
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/amd64/amd64/pmap.c | 9 | ||||
| -rw-r--r-- | sys/i386/i386/pmap.c | 9 |
2 files changed, 4 insertions, 14 deletions
diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index a88b58a..5a46bd3 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -1100,19 +1100,14 @@ pmap_dispose_thread(td) ksobj = td->td_kstack_obj; ks = td->td_kstack; ptek = vtopte(ks); -#ifdef KSTACK_GUARD - ks -= PAGE_SIZE; - for (i = 1; i < (KSTACK_PAGES + 1); i++) { -#else for (i = 0; i < KSTACK_PAGES; i++) { -#endif m = vm_page_lookup(ksobj, i); if (m == NULL) panic("pmap_dispose_thread: kstack already missing?"); vm_page_busy(m); ptek[i] = 0; #ifndef I386_CPU - invlpg(ks + i * PAGE_SIZE); + invlpg(ks + (i * PAGE_SIZE)); #endif vm_page_unwire(m, 0); vm_page_free(m); @@ -1125,7 +1120,7 @@ pmap_dispose_thread(td) * address map. */ #ifdef KSTACK_GUARD - kmem_free(kernel_map, ks, (KSTACK_PAGES + 1) * PAGE_SIZE); + kmem_free(kernel_map, ks - PAGE_SIZE, (KSTACK_PAGES + 1) * PAGE_SIZE); #else kmem_free(kernel_map, ks, KSTACK_PAGES * PAGE_SIZE); #endif diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c index a88b58a..5a46bd3 100644 --- a/sys/i386/i386/pmap.c +++ b/sys/i386/i386/pmap.c @@ -1100,19 +1100,14 @@ pmap_dispose_thread(td) ksobj = td->td_kstack_obj; ks = td->td_kstack; ptek = vtopte(ks); -#ifdef KSTACK_GUARD - ks -= PAGE_SIZE; - for (i = 1; i < (KSTACK_PAGES + 1); i++) { -#else for (i = 0; i < KSTACK_PAGES; i++) { -#endif m = vm_page_lookup(ksobj, i); if (m == NULL) panic("pmap_dispose_thread: kstack already missing?"); vm_page_busy(m); ptek[i] = 0; #ifndef I386_CPU - invlpg(ks + i * PAGE_SIZE); + invlpg(ks + (i * PAGE_SIZE)); #endif vm_page_unwire(m, 0); vm_page_free(m); @@ -1125,7 +1120,7 @@ pmap_dispose_thread(td) * address map. */ #ifdef KSTACK_GUARD - kmem_free(kernel_map, ks, (KSTACK_PAGES + 1) * PAGE_SIZE); + kmem_free(kernel_map, ks - PAGE_SIZE, (KSTACK_PAGES + 1) * PAGE_SIZE); #else kmem_free(kernel_map, ks, KSTACK_PAGES * PAGE_SIZE); #endif |
