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Reenable pool validation

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svn path=/trunk/; revision=1685
This commit is contained in:
David Welch 2001-03-13 21:39:47 +00:00
parent efbd594370
commit fba831e913
1 changed files with 89 additions and 61 deletions
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92
reactos/ntoskrnl/mm/npool.c
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@ -1,4 +1,4 @@
/* $Id: npool.c,v 1.38 2001/03/13 17:47:47 dwelch Exp $
/* $Id: npool.c,v 1.39 2001/03/13 21:39:47 dwelch Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -26,7 +26,9 @@
#define NDEBUG
#include <internal/debug.h>
#if 0
#define ENABLE_VALIDATE_POOL
#ifdef ENABLE_VALIDATE_POOL
#define VALIDATE_POOL validate_kernel_pool()
#else
#define VALIDATE_POOL
@ -298,18 +300,23 @@ MiDebugDumpNonPagedPool(BOOLEAN NewOnly)
KeReleaseSpinLock(&MmNpoolLock, oldIrql);
}
#if 0
#ifdef ENABLE_VALIDATE_POOL
static void validate_free_list(void)
/*
* FUNCTION: Validate the integrity of the list of free blocks
*/
{
BLOCK_HDR* current=free_list_head;
BLOCK_HDR* current;
PLIST_ENTRY current_entry;
unsigned int blocks_seen=0;
while (current!=NULL)
current_entry = FreeBlockListHead.Flink;
while (current_entry != &FreeBlockListHead)
{
unsigned int base_addr = (int)current;
unsigned int base_addr;
current = CONTAINING_RECORD(current_entry, BLOCK_HDR, ListEntry);
base_addr = (int)current;
if (current->magic != BLOCK_HDR_FREE_MAGIC)
{
@ -334,16 +341,17 @@ static void validate_free_list(void)
DbgPrint("Too many blocks on list\n");
KeBugCheck(KBUG_POOL_FREE_LIST_CORRUPT);
}
// verify_for_write(base_addr,current->size);
if (current->next!=NULL&&current->next->previous!=current)
if (current->ListEntry.Flink != &FreeBlockListHead &&
current->ListEntry.Flink->Blink != &current->ListEntry)
{
DbgPrint("%s:%d:Break in list (current %x next %x "
"current->next->previous %x)\n",
__FILE__,__LINE__,current,current->next,
current->next->previous);
__FILE__,__LINE__,current, current->ListEntry.Flink,
current->ListEntry.Flink->Blink);
KeBugCheck(KBUG_POOL_FREE_LIST_CORRUPT);
}
current=current->next;
current_entry = current_entry->Flink;
}
}
@ -352,12 +360,17 @@ static void validate_used_list(void)
* FUNCTION: Validate the integrity of the list of used blocks
*/
{
BLOCK_HDR* current=used_list_head;
BLOCK_HDR* current;
PLIST_ENTRY current_entry;
unsigned int blocks_seen=0;
while (current!=NULL)
current_entry = UsedBlockListHead.Flink;
while (current_entry != &UsedBlockListHead)
{
unsigned int base_addr = (int)current;
unsigned int base_addr;
current = CONTAINING_RECORD(current_entry, BLOCK_HDR, ListEntry);
base_addr = (int)current;
if (current->magic != BLOCK_HDR_USED_MAGIC)
{
@ -378,14 +391,15 @@ static void validate_used_list(void)
DbgPrint("Too many blocks on list\n");
for(;;);
}
// verify_for_write(base_addr,current->size);
if (current->next!=NULL&&current->next->previous!=current)
if (current->ListEntry.Flink != &UsedBlockListHead &&
current->ListEntry.Flink->Blink != &current->ListEntry)
{
DbgPrint("Break in list (current %x next %x)\n",
current,current->next);
current, current->ListEntry.Flink);
for(;;);
}
current=current->next;
current_entry = current_entry->Flink;
}
}
@ -399,10 +413,14 @@ static void check_duplicates(BLOCK_HDR* blk)
{
unsigned int base = (int)blk;
unsigned int last = ((int)blk) + +sizeof(BLOCK_HDR) + blk->size;
BLOCK_HDR* current;
PLIST_ENTRY current_entry;
BLOCK_HDR* current=free_list_head;
while (current!=NULL)
current_entry = FreeBlockListHead.Flink;
while (current_entry != &FreeBlockListHead)
{
current = CONTAINING_RECORD(current_entry, BLOCK_HDR, ListEntry);
if (current->magic != BLOCK_HDR_FREE_MAGIC)
{
DbgPrint("Bad block magic (probable pool corruption) at %x\n",
@ -422,11 +440,15 @@ static void check_duplicates(BLOCK_HDR* blk)
DbgPrint("intersecting blocks on list\n");
for(;;);
}
current=current->next;
current_entry = current_entry->Flink;
}
current=used_list_head;
while (current!=NULL)
current_entry = UsedBlockListHead.Flink;
while (current_entry != &UsedBlockListHead)
{
current = CONTAINING_RECORD(current_entry, BLOCK_HDR, ListEntry);
if ( (int)current > base && (int)current < last )
{
DbgPrint("intersecting blocks on list\n");
@ -439,7 +461,8 @@ static void check_duplicates(BLOCK_HDR* blk)
DbgPrint("intersecting blocks on list\n");
for(;;);
}
current=current->next;
current_entry = current_entry->Flink;
}
}
@ -449,22 +472,25 @@ static void validate_kernel_pool(void)
* FUNCTION: Checks the integrity of the kernel memory heap
*/
{
BLOCK_HDR* current=NULL;
BLOCK_HDR* current;
PLIST_ENTRY current_entry;
validate_free_list();
validate_used_list();
current=free_list_head;
while (current!=NULL)
current_entry = FreeBlockListHead.Flink;
while (current_entry != &FreeBlockListHead)
{
current = CONTAINING_RECORD(current_entry, BLOCK_HDR, ListEntry);
check_duplicates(current);
current=current->next;
current_entry = current_entry->Flink;
}
current=used_list_head;
while (current!=NULL)
current_entry = UsedBlockListHead.Flink;
while (current_entry != &UsedBlockListHead)
{
current = CONTAINING_RECORD(current_entry, BLOCK_HDR, ListEntry);
check_duplicates(current);
current=current->next;
current_entry = current_entry->Flink;
}
}
#endif
@ -500,6 +526,7 @@ merge_free_block(BLOCK_HDR* blk)
blk->size = blk->size + sizeof(BLOCK_HDR) + next->size;
}
}
previous_entry = blk->ListEntry.Blink;
if (previous_entry != &FreeBlockListHead)
{
@ -750,7 +777,8 @@ VOID STDCALL ExFreePool (PVOID block)
}
else
{
DbgPrint("ExFreePool of non-allocated address %x\n", block);
DbgPrint("ExFreePool of non-allocated address %x (magic %x)\n",
block, blk->magic);
}
KeBugCheck(0);
return;