Messages in this thread | | | From | (Miquel van Smoorenburg) | Subject | kswapd killable considered harmful | Date | 20 Jan 1999 20:55:59 +0100 |
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In the 2.2.0-preX series kswapd appears to be killable by a normal user process. Since there is no way to restart it, this is harmful.
Most if not all Linux distribution use either "kill -15 -1" or "killall5 -15" and later with -9 when going down or going to single user mode to make sure all processes are gone. This will kill kswapd. Especially when going multi usre -> single user -> multi user this is problematic.
If killall5 is used, it could try to work around this by not killing processes called "kswapd", but how can the ksapd process be uniquely identified to prevent users from starting up processes called "kswapd" that will never get killed (and thus prevent unmounting filesystems when going down etc) ?
I'd prefer it if kswapd was made unkillable again.
Mike. -- Indifference will certainly be the downfall of mankind, but who cares?
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