*BSD News Article 83985


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From: Gunther Schadow <gunther@gusw.dialup.fu-berlin.de>
Newsgroups: comp.windows.x.misc,comp.unix.bsd.freebsd.misc
Subject: XFree86 gets spontaneously killed on Notebook
Date: Sun, 01 Dec 1996 16:05:54 +0100
Organization: Freie Universitaet Berlin
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Hello!

My new installation of FreeBSD-2.1.0/XFree86-3.2 on my new "Artist"
Notebook with 800x600 TFT, Chips&Tech 65548/1MB, i586/100MHz, 32MB DRAM
seemed to work pretty well, the SVGA server starts and does everything I
want. But suddenly when system load is noderate to high and a little
graphics activity the X server receives a SIGKILL and dies locking up
the console. I dont know who sends the SIGKILL, and I suspect that its
the BSD kernel? This is what I did:

1 login to the notebook via the PLIP inet :-)
2 start the X-server in a gdb debugger (gdb XF86_SVGA)
3 put some load onto it, play a game, compile and TeX in emacs
---> bang, the server hangs and gdb tells me

Program received signal SIGKILL in .lsdb

when I do the above with the following modifications:

2a set a breakpoint on the kill(2) function

in order to see if the Xserver kills himself. Result: the breakpoint is
never reached before the SIGKILL is received. When the signal comes, the
Xserver will die *together* with the gdb process. So I guess this time,
the kill signal was sent to the gdb process?

Has anybody got any idea how to find the originator of the KILL signal?
Any idea how to prevent him from killing me?

regards
-- 
Gunther Schadow-----------Windsteiner Weg 54a, Berlin 14165, FR. Germany
Dept. of Anaesthesia, Benjamin Franklin Univerity Hospital, Berlin.
gusw@fub46.zedat.fu-berlin.de         http://userpage.fu-berlin.de/~gusw
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