[solved] The NDISWrapper 4KSTACKS issue.

Message

Riddick · Post by **Riddick** » Mon Sep 26, 2005 10:49 am

I have kernel 2.6.13.1 and I want to install ndiswrapper for my NetGear Card.
During the installation it says:

*** WARNING: Kernel seems to have 4K size stack option (CONFIG_4KSTACKS) removed; many Windows drivers will need at least 8K size stacks. You should read wiki about 4K size stack issue. Don't complain about crashes until you resolve this.

I have done:

nano /usr/src/linux/.config

and done CTRL + W and written "CONFIG_4KSTACKS"
and it has no results!

I would like to go to 8 or 12K stacks - how do i tell the kernel to do this?

Thanks,

Riddick

kimchi_sg · Post by **kimchi_sg** » Mon Sep 26, 2005 11:01 am

Riddick wrote:I have done:

nano /usr/src/linux/.config

and done CTRL + W and written "CONFIG_4KSTACKS"
and it has no results!

I would like to go to 8 or 12K stacks - how do i tell the kernel to do this?

If the option is not available in menuconfig, you simply cannot turn it on. Not even by editing the .config.

EDIT: You could try directly editing the Makefiles in /usr/src/linux, but you're on your own there.

Riddick · Post by **Riddick** » Mon Sep 26, 2005 11:04 am

I've tried enabling Kernel Hacking and NOT enabling 4KSTACKS - we'll see how it goes!
Keep you updated!

Riddick · Post by **Riddick** » Mon Sep 26, 2005 12:18 pm

Yep - that did it!
So, in the 2.6.13.1 "make menuconfig" kernel .config editor,
I went to Kernel hacking, enabled Kernel debugging, and the 4K Stacks was disabled,
and all as fine.

Recompiled, restarted, and here I am!

Riddick

hothead · Post by **hothead** » Fri Sep 30, 2005 10:51 pm

I may be mistaken but doesn't the 2.6 kernels still use 8K Stacks by default?
If you are interested in the "4K stack issue" have a look at 4K stacks for everyone?

The warning you are confused about only applies for Feodora kernels.

Fedora kernels disable this option altogether and use a 4K stack size

You can safely disable kernel debugging again.

Regards,

hothead

Riddick · Post by **Riddick** » Fri Sep 30, 2005 10:53 pm

No - it was disabled in the Vanilla kernel.
I was getting an error from the installer,
and when I did what I explained, the installer
stopped complaining.

Riddick

hothead · Post by **hothead** » Fri Sep 30, 2005 11:00 pm

No - it was disabled in the Vanilla kernel.
I was getting an error from the installer,
and when I did what I explained, the installer
stopped complaining.

Sure, but you enabled debugging to get rid of this warning.

I get this warning (not error) too. But in spite of this warning ndiswrapper builds fine - and works without any problems.

Please read the information I pointed to.

Riddick · Post by **Riddick** » Fri Sep 30, 2005 11:06 pm

For some drivers it is necessary to have 8K stacks.
Yours obviously didn't need them.

hothead · Post by **hothead** » Fri Sep 30, 2005 11:18 pm

Sure the windows binaries for ndiswrapper do need 8K stacks.

I may be mistaken but doesn't the 2.6 kernels still use 8K Stacks by default?

How does enable debugging help you? - That doesn't increase the stack size.

If you haven't allready please read the Information I pointed to.

Riddick · Post by **Riddick** » Fri Sep 30, 2005 11:30 pm

enabling debugging open up the option to disable 4K stacks , ALRIGHT?
PLEASE READ THE POST
If it wasn't useful or relevant to you, please stop posting

Riddick

[solved] The NDISWrapper 4KSTACKS issue.

[solved] The NDISWrapper 4KSTACKS issue.

Re: The NDISWrapper 4KSTACKS issue.