Messages in this thread | | | Date | Fri, 14 Dec 2001 12:49:25 -0800 | From | Simon Kirby <> | Subject | Re: [PATCH] kill(-1,sig) |
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On Fri, Dec 14, 2001 at 12:40:16PM -0800, Linus Torvalds wrote:
> I do agree, I've used "kill -9 -1" myself. > > However, let's see how problematic it is to try to follow it (in 2.5.x, > not 2.4.x) and if people really complain.
Doesn't init use kill -15 -1, kill -9 -1, etc., to terminate all processes? Hmm. Yes, it does, but the kernel checks for (pid > 1).
By removing the single compare in the kernel, we're potentially increasing the size of userspace applications from a single syscall to a whole walking of /proc just to kill other running processes. Ugh.
"kill -STOP -1" is also great for freezing forkbombs which would no longer possible with the /proc method.
Simon-
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