Thats remind me... sometimes X hangs, and when I try to switch back
to a VC it doesn't or just show me a black screen with some gray little
squares. Switching back to X does not work and the screen shut itself
off after a few seconds, I can't even reboot using C+A+DEL only
using the cold reboot button which then requires me to run fsck...
Very strange...
BTW I'm using a 17" screen and 1600x1200 , Is the resulution may be
responsible for the prob. ?
Thanks
On Mon, May 20, 2002 at 08:50:23AM +0300, Yedidyah Bar-David wrote:
> Hi,
>
> On Mon, May 20, 2002 at 08:30:53AM +0300, Malcolm Kavalsky wrote:
> > Boris Gorelik (by way of b g ) wrote:
> >
> > >[second attempt. it seems that the first one failed. in case I'm wrong,
> > >please forgive me]
> > >hi,
> > >this is a strange problem: we have dual PIII with RH7.2 on it (as only OS).
> > >Today, while X was logging out from KDE session, I tried to swich to text
> > >console (by Ctr-Alt-F1), and X just hanged. The rest of the system worked
> > >fine. This problem has occured several times in the past, and the solution
> > >was to restart the X by killing it. So I looked for X (top -bn1 | less) and
> > >found 2 processes. One process was pretty regular, and the other was:
> > > 9351 root 9 0 0 0 0 Z 0.0 0.0 0:00 X <defunct>
> > >(I've never seen <defunct> note.
> > >I killed the "usual" X - didn't help, tried to kill 9351 by
> > >kill -s 9 9351
> > > - no reaction. It's like 9351 has choosen to ignore the superuser !!!( ;-)
> > > )
> > >
> > >google search for X<defunct> did not gave something usefull (I just know that
> > >some guy had such a problem. Tried to mail him - apparently there is no such
> > >address).
> > >My questions are: how is it possible that a process doues not respond to kill
> > >-s 9, is it possible to kill such a process anyway, what should I do in the
> > >future when this problem comes back, what will be the numbers in lotto in the
> > >next week and when will we sign pease with Syria
> > >
> > >Thanks in advance,
> > > Boris
> > >
> > >=================================================================
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> > >
> > From the man page of PS:
> >
> >
> > Processes marked <defunct> are dead processes (so-called
> > "zombies") that remain because their parent has not
> > destroyed them properly. These processes will be destroyed
> > by init(8) if the parent process exits.
> >
> >
> > So, you will only get rid of this process by rebooting. On the other hand,
> > these process get no CPU usage, so unless you really have a lot, you can
> > simply ignore them.
>
> That is not accurate; you should find the father of the process
> (with ps -alx, or better, with pstree -pul), and make it wait(2) to
> its son. This is probably *dm (kdm?), and you will have to kill it
> too, then its sons (including X) will be adopted by init, which will
> wait on them and they will die. If some other X session is managed by
> *dm, you will probably rather not kill it, but let the X wait until
> reboot (and report a bug to *dm authors).
>
> >
> >
> >
> >
> > =================================================================
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>
> Didi
>
>
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>
--
<a href="http://eg-site.tripod.com";>Eliran</a>
Never could an increase of comfort or security be a sufficient good to be
bought at the price of liberty.
-- Hillaire Belloc
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