[157] in arla-drinkers
Re: patch to fix symlink-related GPFs on Linux
daemon@ATHENA.MIT.EDU (Brandon S. Allbery KF8NH)
Sat Jul 25 17:56:44 1998
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To: Magnus Ahltorp <map@stacken.kth.se>
cc: amu@mit.edu (Aaron M. Ucko), arla-drinkers@stacken.kth.se
Subject: Re: patch to fix symlink-related GPFs on Linux
In-reply-to: Your message of "25 Jul 1998 20:28:57 +0200."
<lv1hg05lr86.fsf@yakko.stacken.kth.se>
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Date: Sat, 25 Jul 1998 17:52:03 -0300
From: "Brandon S. Allbery KF8NH" <allbery@kf8nh.apk.net>
In message <lv1hg05lr86.fsf@yakko.stacken.kth.se>, Magnus Ahltorp writes:
+-----
| > Well, the problems with 0.8 I reported seem to be gone. However, I
| > now see lockups when trying to stat a lot of files in AFS, for
| > instance by running
| > ls -al /afs/athena.mit.edu/user/a/m/amu
|
| Could you try to enable xfs debugging before doing these stats? You
+--->8
BTDT (and BTW, my earlier problems all appear to be gone). Got a solid
lockup (while in X => not a d*mned thing I can do about it). As far as I
could determine, it was a complete hang --- couldn't switch VCs, all screen
output was frozen (including xmcd and xdaliclock), etc. Also, my background
mail checks halted (as determined by a lack of modem activity).
So I rebooted, forced text mode, killed syslogd/klogd and replaced it with
"tail -f /proc/klog&" (old trick from iBCS debugging :-) and used "setdebug
on" and "arlad -n --debug='all,-cleaner'".
I couldn't even hang it with "ls /afs/andrew.cmu.edu/usr" (don't try that it
home, kiddies!). Took over 5 minutes, but it didn't hang.... I did try
various other things as well, including the one that had hung me previously
("ls -CF /afs/ece.cmu.edu/support").
Possibly relevant: I had additionally done the above hanging "ls -CF" when
I didn't have a token, so I got 6 permission-denieds and a listing of the
directory. I then obtained a token for ece.cmu.edu and retried the "ls
-CF"; it sent/received a number of packets and then everything hung.
Possibly also relevant: I have packet filtering in place, although UDP
ports 7000-7006 are permitted (as is 750, obviously since I managed to get a
token :-)
--
brandon s. allbery [os/2][linux][solaris][japh] allbery@kf8nh.apk.net
system administrator [WAY too many hats] allbery@ece.cmu.edu
electrical and computer engineering
carnegie mellon university (bsa@kf8nh is still valid.)
