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_vm_phys.h
(2.27 KB)
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_vm_radix.h
(1.64 KB)
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default_pager.c
(4.83 KB)
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device_pager.c
(13.06 KB)
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memguard.c
(15.13 KB)
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memguard.h
(2.35 KB)
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phys_pager.c
(8.62 KB)
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pmap.h
(7.06 KB)
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redzone.c
(4.95 KB)
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redzone.h
(1.69 KB)
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sg_pager.c
(6.34 KB)
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swap_pager.c
(79.57 KB)
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swap_pager.h
(2.99 KB)
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uma.h
(22.13 KB)
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uma_core.c
(141.88 KB)
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uma_dbg.c
(4.94 KB)
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uma_dbg.h
(2.09 KB)
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uma_int.h
(22.27 KB)
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vm.h
(5.58 KB)
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vm_domainset.c
(9.29 KB)
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vm_domainset.h
(2.19 KB)
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vm_dumpset.h
(2.99 KB)
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vm_extern.h
(5.87 KB)
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vm_fault.c
(59.06 KB)
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vm_glue.c
(15.52 KB)
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vm_init.c
(7.67 KB)
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vm_kern.c
(24.67 KB)
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vm_kern.h
(3.47 KB)
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vm_map.c
(149.63 KB)
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vm_map.h
(18.52 KB)
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vm_meter.c
(17.87 KB)
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vm_mmap.c
(39.75 KB)
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vm_object.c
(76.42 KB)
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vm_object.h
(13.57 KB)
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vm_page.c
(143.85 KB)
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vm_page.h
(36.63 KB)
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vm_pageout.c
(68.44 KB)
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vm_pageout.h
(3.67 KB)
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vm_pagequeue.h
(17.26 KB)
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vm_pager.c
(12.76 KB)
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vm_pager.h
(8.59 KB)
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vm_param.h
(4.97 KB)
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vm_phys.c
(47.32 KB)
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vm_phys.h
(3.91 KB)
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vm_radix.c
(23.84 KB)
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vm_radix.h
(2.47 KB)
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vm_reserv.c
(42.79 KB)
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vm_reserv.h
(2.92 KB)
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vm_swapout.c
(23.8 KB)
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vm_swapout_dummy.c
(4.15 KB)
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vm_unix.c
(6.72 KB)
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vnode_pager.c
(43.39 KB)
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vnode_pager.h
(2.5 KB)
Editing: uma_dbg.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2002, 2003, 2004, 2005 Jeffrey Roberson <jeff@FreeBSD.org> * Copyright (c) 2004, 2005 Bosko Milekic <bmilekic@FreeBSD.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * uma_dbg.c Debugging features for UMA users * */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include "opt_vm.h" #include <sys/param.h> #include <sys/systm.h> #include <sys/bitset.h> #include <sys/kernel.h> #include <sys/types.h> #include <sys/queue.h> #include <sys/lock.h> #include <sys/mutex.h> #include <sys/malloc.h> #include <vm/vm.h> #include <vm/vm_object.h> #include <vm/vm_page.h> #include <vm/uma.h> #include <vm/uma_int.h> #include <vm/uma_dbg.h> #include <vm/memguard.h> static const uint32_t uma_junk = 0xdeadc0de; /* * Checks an item to make sure it hasn't been overwritten since it was freed, * prior to subsequent reallocation. * * Complies with standard ctor arg/return */ int trash_ctor(void *mem, int size, void *arg, int flags) { int cnt; uint32_t *p; #ifdef DEBUG_MEMGUARD if (is_memguard_addr(mem)) return (0); #endif cnt = size / sizeof(uma_junk); for (p = mem; cnt > 0; cnt--, p++) if (*p != uma_junk) { #ifdef INVARIANTS panic("Memory modified after free %p(%d) val=%x @ %p\n", mem, size, *p, p); #else printf("Memory modified after free %p(%d) val=%x @ %p\n", mem, size, *p, p); #endif return (0); } return (0); } /* * Fills an item with predictable garbage * * Complies with standard dtor arg/return * */ void trash_dtor(void *mem, int size, void *arg) { int cnt; uint32_t *p; #ifdef DEBUG_MEMGUARD if (is_memguard_addr(mem)) return; #endif cnt = size / sizeof(uma_junk); for (p = mem; cnt > 0; cnt--, p++) *p = uma_junk; } /* * Fills an item with predictable garbage * * Complies with standard init arg/return * */ int trash_init(void *mem, int size, int flags) { trash_dtor(mem, size, NULL); return (0); } /* * Checks an item to make sure it hasn't been overwritten since it was freed. * * Complies with standard fini arg/return * */ void trash_fini(void *mem, int size) { (void)trash_ctor(mem, size, NULL, 0); } int mtrash_ctor(void *mem, int size, void *arg, int flags) { struct malloc_type **ksp; uint32_t *p = mem; int cnt; #ifdef DEBUG_MEMGUARD if (is_memguard_addr(mem)) return (0); #endif size -= sizeof(struct malloc_type *); ksp = (struct malloc_type **)mem; ksp += size / sizeof(struct malloc_type *); cnt = size / sizeof(uma_junk); for (p = mem; cnt > 0; cnt--, p++) if (*p != uma_junk) { printf("Memory modified after free %p(%d) val=%x @ %p\n", mem, size, *p, p); panic("Most recently used by %s\n", (*ksp == NULL)? "none" : (*ksp)->ks_shortdesc); } return (0); } /* * Fills an item with predictable garbage * * Complies with standard dtor arg/return * */ void mtrash_dtor(void *mem, int size, void *arg) { int cnt; uint32_t *p; #ifdef DEBUG_MEMGUARD if (is_memguard_addr(mem)) return; #endif size -= sizeof(struct malloc_type *); cnt = size / sizeof(uma_junk); for (p = mem; cnt > 0; cnt--, p++) *p = uma_junk; } /* * Fills an item with predictable garbage * * Complies with standard init arg/return * */ int mtrash_init(void *mem, int size, int flags) { struct malloc_type **ksp; #ifdef DEBUG_MEMGUARD if (is_memguard_addr(mem)) return (0); #endif mtrash_dtor(mem, size, NULL); ksp = (struct malloc_type **)mem; ksp += (size / sizeof(struct malloc_type *)) - 1; *ksp = NULL; return (0); } /* * Checks an item to make sure it hasn't been overwritten since it was freed, * prior to freeing it back to available memory. * * Complies with standard fini arg/return * */ void mtrash_fini(void *mem, int size) { (void)mtrash_ctor(mem, size, NULL, 0); }
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