From: Roger Larsson <roger.larsson@norran.net>
Date: Mon, 4 Dec 2000 23:47:48 +0100
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To: Steven Cole <scole@lanl.gov>, linux-kernel@vger.kernel.org
In-Reply-To: <00120414271000.01254@spc.esa.lanl.gov>
In-Reply-To: <00120414271000.01254@spc.esa.lanl.gov>
Subject: Re: 2.4.0-test12-pre4 + cs46xx + KDE 2.0 = frozen system
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Sender: linux-kernel-owner@vger.kernel.org

Hi,

I am seeing something strange too, trying to reliably reproduce it
for a while - it is rare but irritating.
Most likely to happen on cold power on (first@evening)

--- X ---

XFree86 Version 3.3.6 / X Window System
(protocol Version 11, revision 0, vendor release 6300)
Release Date: January 8 1999
        If the server is older than 6-12 months, or if your card is newer
        than the above date, look for a newer version before reporting
        problems.  (see http://www.XFree86.Org/FAQ)
Operating System: Linux 2.2.14 i686 [ELF] SuSE                                
  
Voodo 3 2000 (PCI)
now running unaccelerated

--- KDE 2 ---

--- Audio, with or without audio ---

--- Kernel ---
2.2.16 or 2.4.0-testXX


I have more or less come to the conclusion that it is some KDE 2 interaction
with the X server that triggers this...
And that the OS - keyboard and video still runs.
I have seen data IO on modem after freeze...
(Thinking about trying another window manager for awhile...)

But every time I have had an opportunity to hook up another computer, like
tonight - It does not happen... :-(

/RogerL

On Monday 04 December 2000 22:27, Steven Cole wrote:
> If I have the cs46xx driver compiled either as a module or into
> the kernel, then 2.4.0-test12-pre4 locks up when KDE 2.0
> is started.
>
> The problem with dummy.o in 2.4.0-test12-pre4 allowed me
> to find the possible source of this lock-up which I have been
> seeing recently (since test11-ac2) while starting up KDE 2.0.
>
> This morning, I tried out 2.4.0-test12-pre4, and KDE 2.0
> started up (and there was much rejoicing). Of course, I
> saw the error when I tried to make modules, but I thought
> could live without sound for one bootup.
>
> Then I applied Mohammad A. Haque's small patch to
> linux/include/linux/module.h, recompiled , and the system
> froze again at the same spot ("Loading the panel")
> while starting up KDE 2.0.
>
> I found that if I said N for the cs46xx sound driver, then I
> get a 2.4.0-test12-pre4 kernel that will run KDE 2.0,
> sans sound :(.
>
> I can run GNOME with 2.4.0-test12-pre4 with
> cs46xx compiled as a module or compiled into the kernel,
> and everything works just fine.
>
> Here is some additional information from /var/log/messages:
> 2.4.0-test10 works OK with KDE 2.0 and sound.
>
> For 2.4.0-test12-pre4:
>
> Crystal 4280/461x + AC97 Audio, version 0.14, 13:39:25 Dec  4 2000
> cs461x: Card found at 0xf8ffe000 and 0xf8e00000, IRQ 18
> cs461x: Unknown card (FFFFFFFF:FFFFFFFF) at 0xf8ffe000/0xf8e00000, IRQ 18
> ac97_codec: AC97 Audio codec, id: 0x4352:0x5914 (Unknown)
>
> For 2.4.0-test10:
>
> Crystal 4280/461x + AC97 Audio, version 0.09, 15:31:37 Nov  1 2000
> cs461x: Card found at 0xf8ffe000 and 0xf8e00000, IRQ 18
> cs461x: Unknown card (1028:0096) at 0xf8ffe000/0xf8e00000, IRQ 18
> ac97_codec: AC97 Audio codec, id: 0x4352:0x5914 (Unknown)
>
> The hardware is a DELL 420 dual P-III.
> The base linux distro is Linux-Mandrake 7.2.
> Filesystems are ReiserFS, running reiserfs-3.6.19 for test12
> and reiserfs-3.6.18 for test10.
>
> Note: The ReiserFS folks looked at this, but could
> not reproduce this on another smp machine. That
> was before I noticed the connection with cs46xx.
>
> When I say the system freezes, I mean it completely locks up, and
> ALT-SYSRQ-<whatevercommand> does not do a thing.  The magic
> key combo gives the expected result before freezup.
>
> Thanks in advance for any help,
>
> Steven
> -
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