Re: Linux 2.6.22-rc1

From: Antonino Ingargiola
Date: Sun May 13 2007 - 14:51:06 EST


Hi,

2007/5/13, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>:


On Sun, 13 May 2007, Antonino Ingargiola wrote:
>
> On my desktop pc with Debian Etch and 2.6.22-rc1 the gnome panel
> applet "Sensors Applet" give an error message "No chip detected".
> Works fine on 2.6.21.1 (it show cpu temperature) with the same config
> (I've only only done make oldconfig).

One thing to check is that "make oldconfig" can actually change the
configuration if things were moved behind a new top-level configuration
parameter or such. I'm not saying that's the case here, but it's possible
that things like the i2c changes might have made you inadvertedly changed
some config option.

I suspected so. However the acpi and i2c section of the two config are
identical. I report the only selected options:

Power management options (ACPI, APM) --->
[*] Power Management support
[*] Software Suspend (Hibernation)
ACPI (Advanced Configuration and Power Interface) Support --->
[*] ACPI Support
[*] Sleep States
<M> Button
<M> Video
<M> Fan
<M> Processor
<M> Thermal Zone
(0) Disable ACPI for systems before Jan 1st this year

Device Drivers --->
I2C support --->
<M> I2C device interface
I2C Hardware Bus support --->
<M> VIA VT82C596/82C686/82xx and CX700

> Is this considered a regression or can be due to userland incompatibilities?

It's a regression, although I'd like to know more about your cases. It's
just hard to tell what happened: was it a i2c/hwmon driver that got
broken, or is it some sysfs file that got buggered, or what..

For example, "dmesg" output before and after (preferably as a diff between
the two), and what modules you had loaded in the working/nonworking case.


The first column of lsmod list the same modules in both kernels. The
diff-ed dmesg is attached.

Linus

~ Antonio

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