Re: 2.6.10-rc[2|3] protection fault on /proc/devices

[Georg Schild <dangertools@gmx.net>]

Andrew Morton wrote:
> Georg Schild <dangertools@gmx.net> wrote:
> 
>>Since 2.6.10-rc2 I am having problems accessing /proc/devices. On 
>>startup some init-skripts access this node and print out a protection 
>>fault. i am having this on pcmcia and swap startup. My system is an 
>>amd64 @3000+ in an Acer Aspire 1501Lmi at 64bit mode running gentoo. 
>>.config is the same as on 2.6.10-rc1 which works good. cat on 
>>/proc/devices gives the same problems. The kernel has just a patch for 
>>wbsd (builtin mmc-cardreader) from Pierre Ossman in use, everything else 
>>is vanilla. Does anyone know of this issue and perhaps on how to solve this?
 >>
 >>
> How odd.  All I can think is that something has registered a zillion
> devices and get_blkdev_list() has run off the /proc page.  But then, it
> should have oopsed in sprintf()..
> 
> Still.  Please send a copy of your /proc/devices from 2.6.10-rc1 and also
> apply this:
>
> to 2.6.10-rc3 and see if that fixes it.  If so, please send the
> /proc/devices content from this kernel.
> 
> Beyond that, perhaps something scribbled on the data structures in there. 
> Setting CONFIG_SLAB_DEBUG and/or CONFIG_DEBUG_PAGEALLOC might turn
> something up.

I have tried now with applied patch against the vanilla-sources, that 
means without the wbsd-patch, nothing changed. same is with the 
wbsd-patch. i did a complete rebuild (make clean etc.) everytime. How 
can i enable some debugging?