spca5xx freezes system

[John Wendel]

Lonni J Friedman wrote:
> It took me a month, but I finally found time to build a 2.6.16 kernel
> with FC5's gcc32, and I confirmed that this does workaround the
> problem.  I emailed the developer of spca5xx about this, and this was
> his reply:
> ######
> People report crash when the kernel is configured with a 4ko stack
> CONFIG_4KSTACKS
> you should never set this, the jpeg decoder inside the spca5xx module 
> need a
> 8ko stack.
> People report crash with FC5 and gcc 4.1, setting in the Makefile this 
> option
> for CFLAGS fix the problem
> -fno-unit-at-a-time
> I am using OpenSuse set with 2.6.16 and gcc 4.1 without any problem
> #####
> 
> I also tested his -fno-unit-at-a-time workaround, and it made no
> difference for me.  His requirement of having an 8K stack seems
> ridiculous to me.  This is a webcam driver, it shouldn't need an 8k
> stack, especially since no others in the kernel have that requirement.
> 

[snip]

Kernel.org kernels don't even have a CONFIG_4KSTACKS option any more. 
Looks like this driver needs some work.

Regards,

John