关于nommu内存管理中，系统分页位置不确定的疑惑

stormding

我目前用的是基于asm-armnommu，linux2.4.26系统。
在申请内存时，偶尔会出现内存不足，通过查看/proc/mem_map文件。情况如下：

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR[]ss[][][][][]ss[]ss[]
0x90280000: [][]ss[][][][]ss[][][][]---------------------------ss-RR--------
0x902c0000: ----------s1[]-X---------------------------------s--------------
0x90300000: ---XXX----------------------------------------------------------
0x90340000: -------------------------------------------sXXXXXXsXXXXXXXXXXX--
0x90380000: --------------XXXXXXXXXXXXXXXXXXXXXXXX-----------------XXXXXXXXX
0x903c0000: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX--------------------------
0x90400000: ----------------------------------------------------------------
0x90440000: ----------------------------------------------------------------
0x90480000: ----------------------------------------------------------------
0x904c0000: ----------------------------------------------------------------
0x90500000: ----------------------------------------------------------------
0x90540000: ----------------------------------------------------------------
0x90580000: --------------------------------------------------------s-------
0x905c0000: ----------------------------------------------------------------
0x90600000: ----------------------------------------------------------------
0x90640000: ----------------------------------------------------------------
0x90680000: ----------------------------------------------------------------
0x906c0000: ----------------------------------------------------------------
0x90700000: ----------------------------------------------------------------
0x90740000: ----------------------------------------------------------------
0x90780000: ----------------------------------------------------------------
0x907c0000: ----------------------------------------------------------------
0x90800000: ----------------------------------------------------------------
0x90840000: ------------------------------------------s---------------------
0x90880000: ----------------------------------------------------------------
0x908c0000: ----------------------------------------------------------------
0x90900000: ----------------------------------------------------------------
0x90940000: ----------------------------------------------------------------
0x90980000: ----------------------------------------------------------------
0x909c0000: ----------------------------------------------------------------
0x90a00000: ----------------------------------------------------------------
0x90a40000: ----------------------------------------------------------------
0x90a80000: ----------------------------------------------------------------
0x90ac0000: ----------------------------------------------------------------
0x90b00000: ----------------------------------------------------------


能不能不让系统页，分配到中间地方？各位大侠，有什么建议吗？

[ 本帖最后由 stormding 于 2006-3-14 21:47 编辑 ]

stormding

第一次上来提问题，就没人理我，真不幸！