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<HEAD><TITLE>FAQ汇萃 >> solaris 专栏 >> 钱飞老师的solaris技术问答(9)-sendsig信息的含义</title>
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>> 钱飞老师的solaris技术问答(9)-sendsig信息的含义 [<a href=http://www.jsp001.com/forum/showthread.php?goto=newpost&threadid=638>查看别人的评论</a>]<br>
<hr><p>由 fei 发布于: 2001-03-06 14:15</p><p> </p><p>问: 我的计算机上经常出现以下错误.请解释一下信息含义及原因. <br><br> sendmail[502]:NOQUEUE:SYSERR:daemon: cannot fork: Not enough memory<br> vmunix: sendsig: bad signal stack pid=3819, sig=11<br> vmunix: sigsp = 0xf7fda4d0, action = 0xef9e0, upc = 0xf0930<br><br>计算机构成: SUN4/75,Total memory 64 MB, Swap size 32 MB,SunOS 4.1.3 <br>答: 该信息的含义为,无法生成子进程.原因是内存不够. <br><br>实际原因为swap size小于物理内存尺寸所致. <br><br>在SunOS 4.1.x上, 各个进程需要先向swap区进行物理影射,然后在装入内存执 行.因此,当为swap size小于物理内存尺寸时,将无法有效地利用内存空间.(在 Solaris 2.x上,虚拟内存尺寸为swap size加物理内存尺寸,一般不会出现上述 问题) <br><br>要解决该问题,首先应扩充swap size.可以先生成swap文件,然后再将其转换为 swap区. <br><br>(1) 生成swap文件 <br><br>例如要追加生成48Mswap时,可执行以下命令先来生成swap文件.<br>% mkfile -v 48m /export/swap/localswap <br><br>(2) 将swap文件转换为swap区 <br><br>在/etc/fstab文件中追加以下内容:<br>/export/swap/localswap swap swap rw 0 0 <br><br>在执行以下命令:<br>% swapon -a <br><br>(3) 确认生成结果 <br><br>% pstat -s <br><br>(钱飞/fei@come.or.jp)<br></p></td>
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