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From: Heiko Z. <smi...@us...> - 2006-08-18 15:38:18
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Update of /cvsroot/devil-linux/build/scripts/configuration/help In directory sc8-pr-cvs12.sourceforge.net:/tmp/cvs-serv23928/scripts/configuration/help Modified Files: linux.help Log Message: - added siproxd 0.5.14 (Heiko / Roland Pabel) - added support for pidfiles in /etc/init.d/functions for reloadproc, killproc and statusproc (Heiko / Roland Pabel) - introduced a build configuration option to enable magic sysrq in the kernel (Heiko / Roland Pabel) Index: linux.help =================================================================== RCS file: /cvsroot/devil-linux/build/scripts/configuration/help/linux.help,v retrieving revision 1.2 retrieving revision 1.3 diff -u -d -r1.2 -r1.3 --- linux.help 17 Dec 2003 14:55:47 -0000 1.2 +++ linux.help 18 Aug 2006 15:38:15 -0000 1.3 @@ -21,3 +21,14 @@ This is purely to save memory - each supported CPU adds approximately eight kilobytes to the kernel image. + +CONFIG_LINUX_SYSRQ + If you say Y here, you will have some control over the system even + if the system crashes for example during kernel debugging (e.g., you + will be able to flush the buffer cache to disk, reboot the system + immediately or dump some status information). This is accomplished + by pressing various keys while holding SysRq (Alt+PrintScreen). It + also works on a serial console (on PC hardware at least), if you + send a BREAK and then within 5 seconds a command keypress. The + keys are documented in <file:Documentation/sysrq.txt>. Don't say Y + unless you really know what this hack does. |