ifconfig problem

[Rob Landley]

On Friday 01 September 2006 10:58 am, Raphaël HUCK wrote:
> ifconfig has been working great up to now, but suddenly, it stopped working.
> 
> No change was made neither in the hardware nor in the software. It was 
> working 1 hour ago, it is working anymore now.
> 
> When I launch "/sbin/ifconfig", it nevers displays anything, never 
> returns. It is not killable also.

Unkillable processes are not a userspace problem, they're the kernel.

If this "not killable" is stuck in D state, it's a kernel problem.  If the 
stat field (third field of "ps ax" or fourth field of busybox's ps) is "D", 
then the process is in uninterruptible sleep waiting on a device driver.  
This normally lasts for small fractions of a section.  If it ever lasts 
longer than that, then there was a dropped lock or lost interrupt or some 
such in the kernel.

> This error is maybe caused by a hardware problem of the interface, I 
> have to investigate further on this point.

Google for "process stuck in D state".

> ioctl(4, 0x8915

An ioctl didn't return.  That ain't us.

Rob
-- 
Never bet against the cheap plastic solution.