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

From: Georg Schild
Date: Tue Dec 07 2004 - 03:32:21 EST


Andrew Morton wrote:
Georg Schild <dangertools@xxxxxxx> 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?

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