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Subject2.4.0-test12-pre4 + cs46xx + KDE 2.0 = frozen system
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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