mysqld.exe!unlink_block(st_key_cache * keycache=0x01ff4e80, st_block_link * block=0x105dadb0)  Line 1013 + 0x3 bytes	C
mysqld.exe!free_block(st_key_cache * keycache=0x00000000, st_block_link * block=0x105dadb0)  Line 2229	C
mysqld.exe!flush_key_blocks_int(st_key_cache * keycache=0x00000000, int file=0x00000003, flush_type type=FLUSH_RELEASE)  Line 2510 + 0x9 bytes	C
mysqld.exe!flush_key_blocks(st_key_cache * keycache=0x01ff4e80, int file=0x00000003, flush_type type=FLUSH_RELEASE)  Line 2554 + 0x13 bytes	C
mysqld.exe!_mi_preload()  + 0xfc bytes	C
mysqld.exe!ha_myisam::preload_keys(THD * thd=0x02f79158, st_ha_check_opt * check_opt=0x00000000)  Line 1156 + 0x13 bytes	C++
mysqld.exe!mysql_admin_table(THD * thd=0x00000000, st_table_list * tables=0x02fad200, st_ha_check_opt * check_opt=0x00000000, const char * operator_name=0x00000000, thr_lock_type lock_type=TL_READ, int open_for_modify=0x00000000, int no_warnings_for_error=0x00000000, unsigned int extra_open_options=0x00000000, int (THD *, st_table_list *, st_ha_check_opt *)* prepare_func=0x00000000, int (THD *, st_ha_check_opt *)* operator_func=0x005165c0, int (THD *, st_table_list *)* view_operator_func=0x00000000)  Line 2347 + 0x1a bytes	C++
mysqld.exe!mysql_preload_keys(THD * thd=0x02f79158, st_table_list * tables=0x02fad200)  Line 2670 + 0x23 bytes	C++
mysqld.exe!mysql_execute_command(THD * thd=0x02f79158)  Line 2819 + 0x7 bytes	C++
ntdll.dll!RtlValidateHeap()  + 0x12268 bytes	



static void unlink_block(KEY_CACHE *keycache, BLOCK_LINK *block)
{
  if (block->next_used == block)
    /* The list contains only one member */
    keycache->used_last= keycache->used_ins= NULL;
  else
  {
    block->next_used->prev_used= block->prev_used; <--------------------------------CRASH
    *block->prev_used= block->next_used;
    if (keycache->used_last == block)
      keycache->used_last= STRUCT_PTR(BLOCK_LINK, next_used, block->prev_used);
    if (keycache->used_ins == block)
      keycache->used_ins=STRUCT_PTR(BLOCK_LINK, next_used, block->prev_used);
  }
  
  
  
 -		block	0x105dadb0 {next_used=0x00000000 prev_used=0x105e0450 next_changed=0x105e0450 ...}	st_block_link *
+		next_used	0x00000000 {next_used=??? prev_used=??? next_changed=??? ...}	st_block_link *
+		prev_used	0x105e0450	st_block_link * *
+		next_changed	0x105e0450 {next_used=0x105c89c0 prev_used=0x105d7060 next_changed=0x105d7060 ...}	st_block_link *
+		prev_changed	0x01ff5118	st_block_link * *
+		hash_link	0x00000000 {next=??? prev=??? block=??? ...}	st_hash_link *
+		wqueue	0x105dadc4 {last_thread=0x00000000 }	st_keycache_wqueue [2]
		requests	0x00000001	unsigned int
+		buffer	0x05a08820 ""	unsigned char *
		offset	0x00000400	unsigned int
		length	0x00000000	unsigned int
		status	0x00000000	unsigned int
		temperature	BLOCK_COLD	BLOCK_TEMPERATURE
		hits_left	0x00000003	unsigned int
		last_hit_time	0x0000000000000000	unsigned __int64
+		condvar	0x00000000 {waiting=??? semaphore=??? }	pthread_cond_t *