freebsd 6.2 crash

angeljyt

我是个新手.服务器是刚买来的.
硬件配置:奔腾D 2.8 双核,希捷SATA 80g硬盘,技嘉945主板.胜创2G内存.
软件全是我一个人装的.第一次装FREEBSD系统.最小化安装FREEBSD 6.2
手动编译PHP 5.2.1,APACHE 2.0.59,mysql是二进制安装包.
最近老是出毛病.我也不知道空间是ARP病毒,还是服务器有问题.
一个星期crash几次了.我现在想知道怎么找出crash的原因?请各位大虾不吝赐教.
谢谢.
这是今天crash的last日志
www ttyp0 125.33.130.166 二 4 17 19:52 still logged in
reboot ~ 二 4 17 15:33
www ttyp0 125.33.130.166 二 4 17 14:15 - crash (01:18)

dmesg: 每次crash以后就出现这些dismounted
Trying to mount root from ufs:/dev/ad3s1a
WARNING: / was not properly dismounted
WARNING: /home was not properly dismounted
WARNING: /tmp was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted

这是messages日志中记录的:
113 Apr 17 15:33:33 www kernel: Trying to mount root from ufs:/dev/ad3s1a
114 Apr 17 15:33:33 www kernel: WARNING: / was not properly dismounted
115 Apr 17 15:33:33 www kernel: WARNING: /home was not properly dismounted
116 Apr 17 15:33:33 www kernel: WARNING: /tmp was not properly dismounted
117 Apr 17 15:33:33 www kernel: WARNING: /usr was not properly dismounted
118 Apr 17 15:33:33 www kernel: WARNING: /var was not properly dismounted
119 Apr 17 15:33:33 www kernel: IP Filter: v4.1.13 initialized. Default = pass all, Logging = enabled
120 Apr 17 15:33:33 www kernel: Accounting enabled
121 Apr 17 15:33:34 www kernel: sk0: link state changed to UP
122 Apr 17 15:34:53 www fsck: /dev/ad3s1f: 6727 files, 434707 used, 4642372 free (292 frags, 580260 blocks, 0.0% fragmentation)
123 Apr 17 15:35:00 www fsck: /dev/ad3s1e: 8 files, 6 used, 2538513 free (49 frags, 317308 blocks, 0.0% fragmentation)
124 Apr 17 15:36:59 www fsck: /dev/ad3s1g: UNREF FILE I=3134658 OWNER=root MODE=100644
125 Apr 17 15:36:59 www fsck: /dev/ad3s1g: SIZE=489854 MTIME=Apr 17 15:30 2007 (CLEARED)
126 Apr 17 15:36:59 www fsck: /dev/ad3s1g: Reclaimed: 0 directories, 1 files, 0 fragments
127 Apr 17 15:36:59 www fsck: /dev/ad3s1g: 255055 files, 1620709 used, 20481121 free (148793 frags, 2541541 blocks, 0.7% fragmentation)
128 Apr 17 15:37:33 www fsck: /dev/ad3s1d: UNREF FILE I=400385 OWNER=root MODE=100600
129 Apr 17 15:37:33 www fsck: /dev/ad3s1d: SIZE=1019 MTIME=Apr 17 14:20 2007 (CLEARED)
130 Apr 17 15:37:33 www fsck: /dev/ad3s1d: UNREF FILE I=400397 OWNER=root MODE=100600
131 Apr 17 15:37:33 www fsck: /dev/ad3s1d: SIZE=30582291 MTIME=Apr 17 15:31 2007 (CLEARED)
132 Apr 17 15:37:33 www fsck: /dev/ad3s1d: Reclaimed: 0 directories, 2 files, 0 fragments
133 Apr 17 15:37:33 www fsck: /dev/ad3s1d: 13142 files, 420873 used, 2117646 free (1238 frags, 264551 blocks, 0.0% fragmentation)

服务器上只开了ssh,apache,mysql,ipmon,ipfilter,syslog

MichaelBibby

这些信息只表示你的分区没有被正常卸载，导致系统在启动时运行 fsck 来做磁盘检测。

angeljyt

呵呵.系统不会自动修复的.是我后来在rc.conf中配置了fsck_enable才检测的.
我想知道怎么查找crash的原因.我看messages日志看不出什么来.
希望大虾们不吝赐教.指点指点应该从什么地方找.

lsstarboy

第一个是看内核，是不是选对了，PD的CPU要用SMP的内核。
再一个比较有效的办法就是先把php或mysql禁掉，看还crash不。
高手（当然我不是）应该先去看一下apache和mysql的日志，找crash的原因。
但是有一个问题：你计算机重启是自动重启还是死机后你手动重启，如果是自动重启的话，如果内核正确的话，那你就要考虑一下是不是你的硬件有问题了。可以找个winPE，挂上测试软件试试。

angeljyt

SMP已经开了.
CPU: Intel(R) Pentium(R) D CPU 2.80GHz (2813.54-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf65  Stepping = 5
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0xe49d<SSE3,RSVD2,MON,DS_CPL,EST,CNTX-ID,CX16,<b14>,<b15>>
  AMD Features=0x20100000<NX,LM>
  AMD Features2=0x1<LAHF>
  Cores per package: 2
real memory  = 2146369536 (2046 MB)
avail memory = 2095271936 (1998 MB)
ACPI APIC Table: <GBT    GBTUACPI>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID:  0
cpu1 (AP): APIC ID:  1

系统肯定不是我手动重启的,都是一crash就自动重启了.因为托管在机房.我只是通过ssh远程登录.
因为服务器买来就是为了做网站的.所以不能停了php和mysql
有一次crash是我把所有图书生成html有,3万多个html文件吧.我要删了重新生成.rm *结果提示参数太长.我用一部分文件名加*删了一些.结果后来重启了.

2G内存,我分了1G的swap,平时看的时候swap根本没有用到.

[[i] 本帖最后由 angeljyt 于 2007-4-18 18:13 编辑 [/i]]

angeljyt

另外我已经在rc.conf中停了sendmail,怎么老是有发邮件的日志.内容如下.怎么才能停了这些发送邮件
Apr 18 03:02:55 www sendmail[11577]: l3BJ28Hl002118: to=root, delay=5+23:59:32, xdelay=00:00:00, mailer=relay, pri=584030, relay=[127.0.0.    1], dsn=4.0.0, stat=Deferred: Operation timed out with [127.0.0.1]

angeljyt

服务器买回来的时候装的是windows 2003,我给全格掉了.用freebsd分区的时候老提示下面这个错误,和系统crash有关吗？
硬盘是 希捷 SATA  80G
xWARNING:  A geometry of 155069/16/63 for ad3 is incorrect.  Using  x  
xa more likely geometry.  If this geometry is incorrect or you               x  
xare unsure as to whether or not it's correct, please consult               x  
xthe Hardware Guide in the Documentation submenu or use the         x  
x(G)eometry command to change it now.                                              x  
xRemember: you need to enter whatever your BIOS thinks the           x  
xgeometry is!  For IDE, it's what you were told in the BIOS                  x  
xsetup. For SCSI, it's the translation mode your controller is                x  
xusing.  Do NOT use a ``physical geometry''.

[[i] 本帖最后由 angeljyt 于 2007-4-18 22:23 编辑 [/i]]