Re: Lombard hard freeze (update: mem>64MB)

From: Gabriel Ricard <hidden>
Date: 2000-05-12 21:09:53

Well I tried this out too and it didn't work. I got
the same lockup as soon as there was enough kernel
output that it had to scroll the screen up. It moves
all the text up one line and then locks up solid. I
wonder if maybe it's something else.

Can you tell me your exact configuration so I can
duplicate it on my lombard and see if it works? Kernel
args, etc.

So, your machine can boot from a cold state, load
yaboot from OF , boot Linux, and it works fine?

I really have to wonder what the difference is.

Do you have the 400MHz model with the 8MB ATI RAGE LT
Pro? Using atyfb?

--- Seanano <sto9013@ksu.edu> wrote:
  The video initializes fine no matter how I boot
into linux.  I'm running
kernel 2.2.15pre20 rsynced from linuxcare.com.au on
Linuxppc2000.
Currently booting through yaboot 0.5.  I've posted
my current kernel,
System.map, and modules folder on my website at:
  http://www.seanano.org/linux/ppc
Be warned however, that this is not a gerneric
kernel.  I don't have a lot
of options enabled.  There is no ppp support, only
bmac ethernet driver,
only MESH for scsi, so in other words, I wouldn't
use this kernel except
for the lombard.

Sean


On Thu, 11 May 2000, Gabriel Ricard wrote:
quoted
I'm using yaboot too. Does your kernel intialize
the
quoted
video correctly when you first boot the machine up
from a cold state (as in, it was shutdown, not a
reboot)? I have to go into OF from a cold state,
and
quoted
boot my macos partition just to the point where
the
quoted
ROM initializes the video with a grey screen,
otherwise, I get this odd lockup when I boot into
Linux. As the kernel messages scroll down the
screen
quoted
its fine until it has to scroll the screen up, it
just
quoted
locks up when it does that. What kernel, yaboot,
and
quoted
LinuxPPC (or other distro) version are you using?

--- Seanano <sto9013@ksu.edu> wrote:
quoted
  I've been running a lombard with 192 megs of
RAM
quoted
quoted
since it was purchased
without any problem.  I've been running kernels
2.2.14 - 2.2.15-pre20
with almost all of the 2.2.15-preXX kernels
coming
quoted
quoted
from the rysnc server
at linuxcare.com.au.  Up until I installed the
9.0.4
quoted
quoted
upgrade a few weeks
ago I was using bootX, now I've switched over to
yaboot.  I usually
compile multiple programs at a time and I've
never
quoted
quoted
seen any kernel errors
or freezes.  When the kernel boots it shows
Total
quoted
quoted
Memory = 192MB.


[seanano@ip35 seanano]$ cat /proc/cpuinfo
processor       : 0
cpu             : 750
temperature     : 0 C
clock           : 399MHz
revision        : 130.2
bogomips        : 801.18
zero pages      : total 0 (0Kb) current: 0 (0Kb)
hits: 0/261 (0%)
machine         : PowerBook1,1
motherboard     : PowerBook1,1 MacRISC Power
Macintosh
L2 cache        : 1024K unified
memory          : 192MB
pmac-generation : NewWorld


[seanano@ip35 /proc]$ cat /proc/meminfo
        total:    used:    free:  shared:
buffers:
quoted
quoted
cached:
Mem:  195981312 50966528 145014784 25296896
3297280
quoted
quoted
22179840
Swap: 268427264        0 268427264
MemTotal:    191388 kB
MemFree:     141616 kB
MemShared:    24704 kB
Buffers:       3220 kB
Cached:       21660 kB
SwapTotal:   262136 kB
SwapFree:    262136 kB


  I'd be happy to run some tests if needed.  My
network access on the
lombard is a bit unstable right now so I
couldn't
quoted
quoted
download the gnomehack
source...  I should be back to normal in a few
days.
quoted
quoted
 I don't even have
gnome installed anyway...


Sean


On Thu, 11 May 2000, Bernhard Reiter wrote:
quoted
On Thu, May 11, 2000 at 11:07:39AM +0200,
Michael
quoted
quoted
Schmitz wrote:
quoted
quoted
quoted
quoted
i've done some reasonably big compiles
and
quoted
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run seti@home at the same time.
quoted
quoted
quoted
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however i've never kept at it for
excessive
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periods of time...i'll leave a
quoted
quoted
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kernel make looping tonight building off
an
quoted
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nfs disk to the local disk
quoted
quoted
quoted
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and see if anything turns up by
morning...
quoted
quoted
quoted
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I have left my lombard running for 4 days
in a
quoted
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row which included several
quoted
quoted
quoted
sleeps. During this period I did a 6 hour
stint playing with the development
quoted
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kernel code and did about 20 makes. No
problems and this was after
quoted
quoted
quoted
I bumped it
up to 192. I could try building GRASS just
to
quoted
quoted
empirical though.
quoted
quoted
Seems there's more people successfully
running
quoted
quoted
quoted
64M in their Lombard here
quoted
than it first seemed. Someone pointed to the
kernel problem corner, so
quoted
quoted
what kernel versions were these success
stories
quoted
quoted
run on?
quoted
Yes, we have to gather more data. Than then we
have to seperate
quoted
the problems and search for similiarties and
differences in the
quoted
machines.

There seems to be a significant number of
people
quoted
quoted
having this hard freeze
quoted
problem with Lombards. Here is my preliminary
list, if I counted
quoted
correctly:

	Hard Freezes occuring:

Tim Wojtulewicz		Pismo 	128 MB
Bernhard Reiter		Lombard 128,192   2.2.14,
2.2.15pre19
quoted
Gabriel Ricard	    	Lombard 192 MB   + other
problems
quoted
Mario Scarpa	        hard freeze as described?
 64
quoted
quoted
MB + other problems
quoted

	Running fine:

jeramy b smith		lombard	192 MB
chris mccraw		lombard 128 MB 		2.2.12 thru
2.2.15pre20
quoted


As I have no idea on how to compare the stress
tests, I can only say
quoted
that in 95% of all my test cases I can trigger
a
quoted
quoted
hard freeze within three
quoted
runs of:
	rpm -ba gnomehack.spec
(You can get my src.rpm from:
ftp://intevation.de/users/bernhard/)
quoted
There was one day, when I could run it five
times
quoted
quoted
but still a hard
quoted
freeze later.


So we should gather more data on how to
recreate
quoted
quoted
the bug and then
quoted
ask more people to try to trigger it. As you
can
quoted
quoted
see from my preliminary
quoted
tests, there is no obvious pattern. Maybe we
should also check the
quoted
different lombard models, if there are any.
(At
quoted
quoted
least I have a german
quoted
keyboard, e.g.)


Oh and more details from my part:
My RAM test from MacOS was completed fine,
reporting no errors.
quoted
Adding the mem=64M option to the bootup (I am
using bootx, could that
quoted
make a difference too?) seems to make the
system
quoted
quoted
more stable so far.
quoted
Jeramy, Chris: can you tell us which kernel
and
quoted
quoted
bootprocess you are using?
quoted
	Are you sure that linux uses all the memory?
	Can you build gnomehack three times?


	Bernhard
--
Professional Service around Free Software
      (intevation.net)
quoted
The FreeGIS Project
(freegis.org)
quoted
quoted
quoted
Association for a Free Informational
Infrastructure            (ffii.org)
quoted

=====
Gabriel Ricard
g_ricard@yahoo.com


=====
Gabriel Ricard
g_ricard@yahoo.com


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