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susbarbatus 写了：并没有如此要紧的数据，小电影丢就丢了吧

astolia 写了：编译内核时就没开这个

ALT+SysRq+S

poloshiao 写了：

ALT+SysRq+S

http://www.howtogeek.com/119127/use-the ... -commands/
s – Flushes data from your cache to disk.

ALT+SysRq
目的是 在 系統凍結後 要
Cleanly Restarting Your System
感谢回复

目的不是單單著眼於保存数据

目的是 在 系統凍結後 要
Cleanly Restarting Your System

tang.zhe 写了：不按"S"不行吗？

应该保存不仅仅是用户自身的数据,还包括维持文件系统的各类必要数据(这些数据如果没有正确同步,就有可能导致文件系统错误)

有没有养成经常按ALT+SysRq+S的习惯?

poloshiao 写了：

应该保存不仅仅是用户自身的数据,还包括维持文件系统的各类必要数据(这些数据如果没有正确同步,就有可能导致文件系统错误)

有没有养成经常按ALT+SysRq+S的习惯?

1. http://www.howtogeek.com/119127/use-the ... -commands/
s – Flushes data from your cache to disk.
1-1. 按下 ALT+SysRq+S 鍵
把 緩存中的數據 強制寫入硬盤
只是 SysRq 附屬功能之一

2. "Cleanly Restarting Your System"
http://www.howtogeek.com/119127/use-the ... -commands/
ALT+SysRq
+
reisub
2-1. 依照 r e i s u b 順序 中間間隔停留幾秒
r – Puts the keyboard into raw mode, taking control of it away from the X server.
e – Sends the terminate signal to all processes, asking them to end gracefully.
i – Sends the kill signal to all processes, forcing them to end immediately.
s – Flushes data from your cache to disk.
u – Remounts all file systems read-only.
b – Reboots your computer.

3. 參閱
https://en.wikipedia.org/wiki/Magic_SysRq_key
Magic SysRq key
It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem.
Its effect is similar to the computer's hardware reset button (or power switch) but with many more options and much more control.

YeLee 写了：怎么我在我的Win10下面按不行的