请教一下关于EXT4-fs: re-mounted的问题，非常感谢

[nocworker]

安装了ubuntu 10.10以后，我的电脑经常莫名其妙的死机，连Ctrl+Alt+F1之类的方法都完全没有反应，只能按power键硬关机然后重启。

刚才看了一下错误日志，结果如下。

代码： 全选

alexander@Yin-ThinkPad-W510:~$ sudo grep error /var/log/messages
Nov 22 15:32:20 Yin-ThinkPad-W510 kernel: [   13.182973] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro
Nov 22 15:32:21 Yin-ThinkPad-W510 kernel: [   14.101470] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 22 15:32:31 Yin-ThinkPad-W510 kernel: [   24.160824] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 22 16:14:38 Yin-ThinkPad-W510 kernel: [ 2549.253464] npviewer.bin[2244]: segfault at ed90d04c ip 00000000f616cee7 sp 00000000ff8c2cd0 error 4 in libflashplayer.so[f5dcd000+b2e000]
Nov 22 20:33:32 Yin-ThinkPad-W510 kernel: [18069.540183] npviewer.bin[2758]: segfault at 0 ip 00000000f6228ed1 sp 00000000ffe5d8d0 error 4 in libflashplayer.so[f5e89000+b2e000]
Nov 22 21:33:11 Yin-ThinkPad-W510 kernel: [21645.901171] npviewer.bin[3693]: segfault at 418 ip 00000000f604bc86 sp 00000000ffa165b8 error 6 in libflashplayer.so[f5dfc000+b2e000]
Nov 23 08:01:55 Yin-ThinkPad-W510 kernel: [   12.852925] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro
Nov 23 08:01:56 Yin-ThinkPad-W510 kernel: [   13.852322] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 23 08:02:06 Yin-ThinkPad-W510 kernel: [   23.854362] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 23 08:05:16 Yin-ThinkPad-W510 kernel: [  212.450045] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 23 08:10:33 Yin-ThinkPad-W510 kernel: [  528.464562] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 23 08:12:49 Yin-ThinkPad-W510 kernel: [  664.284429] npviewer.bin[2300]: segfault at 0 ip 00000000f616bed1 sp 00000000ffadb480 error 4 in libflashplayer.so[f5dcc000+b2e000]
Nov 23 08:14:23 Yin-ThinkPad-W510 kernel: [  758.794692] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 23 08:16:54 Yin-ThinkPad-W510 kernel: [  909.779152] npviewer.bin[2561]: segfault at f5644054 ip 00000000f61e4ec3 sp 00000000ffa642d0 error 4 in libflashplayer.so[f5e45000+b2e000]
Nov 23 08:18:19 Yin-ThinkPad-W510 kernel: [  994.222896] npviewer.bin[2672]: segfault at 0 ip 00000000f6206ed1 sp 00000000fff9f960 error 4 in libflashplayer.so[f5e67000+b2e000]
Nov 23 08:54:18 Yin-ThinkPad-W510 kernel: [ 3151.086793] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 23 08:58:57 Yin-ThinkPad-W510 kernel: [ 3430.471193] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 23 09:55:54 Yin-ThinkPad-W510 kernel: [ 6843.545801] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 24 20:55:19 Yin-ThinkPad-W510 kernel: [   14.481302] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro
Nov 24 20:55:21 Yin-ThinkPad-W510 kernel: [   17.744880] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 24 20:55:31 Yin-ThinkPad-W510 kernel: [   27.587491] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 24 23:21:07 Yin-ThinkPad-W510 kernel: [ 8753.841434] npviewer.bin[2245]: segfault at f2786054 ip 00000000f6209ec3 sp 00000000ff9b6a80 error 4 in libflashplayer.so[f5e6a000+b2e000]
Nov 25 06:44:55 Yin-ThinkPad-W510 kernel: [   15.691695] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro
Nov 25 06:44:56 Yin-ThinkPad-W510 kernel: [   20.926033] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 25 06:45:05 Yin-ThinkPad-W510 kernel: [   30.167888] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 25 06:45:23 Yin-ThinkPad-W510 kernel: [   48.321787] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 25 07:14:40 Yin-ThinkPad-W510 kernel: [ 1800.258267] chrome[2135]: segfault at fffffffffffffff8 ip 00007ff37e7c4423 sp 00007fffa0efecc0 error 4 in libstdc++.so.6.0.14[7ff37e726000+e8000]
Nov 25 09:00:41 Yin-ThinkPad-W510 kernel: [   15.303328] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro
Nov 25 09:00:42 Yin-ThinkPad-W510 kernel: [   17.670264] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 25 09:00:52 Yin-ThinkPad-W510 kernel: [   26.995383] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 25 09:01:02 Yin-ThinkPad-W510 kernel: [   36.897509] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 25 17:10:35 Yin-ThinkPad-W510 kernel: [   12.876670] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro
Nov 25 17:10:36 Yin-ThinkPad-W510 kernel: [   13.903721] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 25 17:10:46 Yin-ThinkPad-W510 kernel: [   24.421325] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=600
Nov 25 17:11:23 Yin-ThinkPad-W510 kernel: [   60.874269] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 25 17:28:02 Yin-ThinkPad-W510 kernel: [   13.456208] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro
Nov 25 17:28:03 Yin-ThinkPad-W510 kernel: [   15.667858] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0
Nov 25 17:28:12 Yin-ThinkPad-W510 kernel: [   24.677602] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0

也就是说基本上每次重启似乎都是因为EXT4-fs remounted造成的。

我的电脑是thinkpad w510, intel i7的处理器，4g内存，64位系统。

请各位指点一下，有没有什么方法解决这样的问题，除了重装10.04之外。

非常感谢。

[davidlone]

http://www.linuxquestions.org/questions ... al-841085/
这是一个类似的帖子，也是那种信息。
照帖子里的说法出现的原因应该是系统里有个脚本改动了ext4分区的一个参数commit value，然后分区就remount了。commit代表分区数据和元数据同步的一个时间间隔吧（可能我描述不准确），这个数字越小、数据安全性越好、性能越差。
你给出的日志里面这个commit就在0和600之间改动。但是系统死机是不是这个造成了不知晓，因为照帖子里的看法这个好像并没有影响到系统的正常使用。

如果你确定系统那些日志出现的时间就是死机的时刻，可以照下面的方法试一下：
首先fsck检查一下以保证文件系统本身没有问题。
然后执行sudo chmod -x /usr/lib/pm-utils/power.d/journal-commit将更改commit值的那个脚本的执行权限去掉，这样commit值就不会变来变去了。
然后再用用电脑一段时间后看还有没有新的那种错误信息出现、会不会再死机。