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Jan Engelhardt writes: > On Apr 10 2007 17:47, Jan Engelhardt wrote:>> On Apr 8 2007 20:57, Oleg Nesterov wrote: >>> Anyway, re-parenting to swapper breaks pstree, it doesn't >>> show kernel threads. And if ->parent == /sbin/init, we can't >>> remove us from ->children (unless we forbid sub-thread-of-init >>> exec). So the only safe change is set ->exit_state = -1.>>>> Then we have to fix pstree and all that. (In fact, I'm >> trying to patch `ps f` to DTRT ;p)>> Done that and the result is that `ps afwx` now looks like: >> PID TTY STAT TIME COMMAND > 2722 ? S 0:00 [lockd] ... > 3 ? S< 0:00 [events/0] > 2 ? SN 0:00 [ksoftirqd/0] > 1 ? Ss 0:02 init [3] > 537 ? S<s 0:02 \_ /sbin/udevd --daemon > 1600 ? Ss 0:00 \_ /usr/bin/dbus-daemon --system > 1692 ? Ss 0:00 \_ /sbin/acpid > 1923 ? Ss 0:00 \_ /sbin/resmgrd ... > - if(self_pid==1 && ADOPTED(processes[i]) && forest_type!='u') > + if(ADOPTED(processes[i]) && forest_type!='u') That's not compatible because init's children are now in the logical place. Since the days of procps-1.x.x or earlier, such processes have been listed at top level. BTW, what does "ps -ejH" do for you, with and without the patch? I'd be a lot happier about breaking compatibility in this area if I could get a functional adoption flag. That is, I really would like to show a process as child of init if it naturally was created as a child of init. It's less informative to have fake children showing up the same as real ones. The original parent PID would do. (BTW, the original parent name and/or grandparent PID would be great to have) As a bonus, the kernel could reap these processes more quickly than init can... and then maybe we can stop caring if init is alive. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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