Messages in this thread | | | Date | Sat, 27 Jun 1998 10:20:29 -0400 | From | Myrdraal <> | Subject | Re: [PATCH]: Runtime sysrq toggle for 2.1.107,2.1.108pre1. |
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On Sat, Jun 27, 1998 at 04:13:09PM +0200, Martin Mares wrote: Hi, > > This patch makes a sysctl /proc/sys/debug/sysrq_enable that can > > enable or disable the magic sysrq key on the fly. (It only appears > > if CONFIG_MAGIC_SYSRQ is set.) It also updates Documentation/sysrq.txt. > > This seems like something that would be useful in the kernel, include > > it if you want to :) > > I think we really don't need such features. SysRq is a tool for salvaging > after system crash, therefore you need to know in advance that the system > will crash if you want to switch it on before having to use it. As crashes > are usually hardly predictable, you need to have it switched on all the > time, therefore you don't need any switches, QED. Well, as long as the system console is protected from lusers (who probably could screw things up *without* help from sysrq), I don't see any reason not to leave it on all the time. Also, I can see a scenario where a server is crashing often - So you enable sysrq, and catch the next crash. Personally, I think sysrq should always be enabled unless the system console is available to the general public :) -Myrdraal -- Linux jackalz 2.1.108 #77 Sat Jun 27 00:55:49 EDT 1998 i486 10:17am up 8:47, 16 users, load average: 0.11, 0.13, 0.72
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