* Mick <michaelkintz...@gmail.com> [110723 10:20]: > On Saturday 23 Jul 2011 14:31:23 Todd Goodman wrote: > > * Stroller <strol...@stellar.eclipse.co.uk> [110723 09:21]: > > > On 21 July 2011, at 19:48, Dale wrote: > > > > ... > > > > I would try to kill it as root. The -9 option should work. That > > > > hasn't failed me yet. I always run kill commands as root and DOUBLE > > > > check the PID after typing it in. > > > > > > I believe that `kill -9` is bad practice - doesn't it leave memory > > > allocated to the processes as unrecoverable or something? > > > > > > I believe other signals should be attempted first. See the list in `man > > > kill`. I won't swear to it, but `kill -4` sounds right. > > > > > > Stroller. > > > > No, a kill -9 shouldn't leave memory allocated. > > > > However, it is best to try other signals first because it gives the app > > a chance to clean up before closing (if they handle the signals.) But > > that's also why they don't necessarily work. > > > > SIGHUP (kill -1) is the first thing I generally try. Depending on the > > app I may try SIGQUIT (kill -15) but generally it's straight to kill -9 > > if the kill -1 doesn't work. > > > > Todd > > Thanks, I tried kill -15 first and then kill -9. I also tried pkill, > killall, > but I got no response from firefox and run out of ideas. > > What does kill -4 do? What is ILL?
SIGILL is an illegal instruction. Not one you'd want to use with kill in general. Todd