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Re: memory protection in linux kernels

Cross-posted to 2 groups.

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"Mark" <mark_cruzNOTFORSPAM@hotmail.com> writes:
>Hello
>
>I'm debugging my kernel module, which appears to have a memory corruption, 
>basically a piece of memory allocated by alloc_netdev() for 'net_device' 
>instance has benn corrupted. I'm wondering if I could apply some "read-only" 
>attribute on this memory, this way I expect to have Oops generated when 
>someone tries to modify the memory.
>
>Does it sound reasonable or my ideas are undoable ?
>Thanks.
>
>Mark 
>

Turn on CONFIG_KDB and use kdb to set a watchpoint on the location being
corrupted.   The processor will automatically stop and drop into kdb
when the location is modified.

See the documentation for the bp command in kdb under the Documentation
directory in the kernel source tree.

scott

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Thread

memory protection in linux kernels "Mark" <mark_cruzNOTFORSPAM@hotmail.com> - 2012-10-17 17:32 -0400
  Re: memory protection in linux kernels scott@slp53.sl.home (Scott Lurndal) - 2012-10-18 13:53 +0000
    Re: memory protection in linux kernels "Mark" <mark_cruzNOTFORSPAM@hotmail.com> - 2012-10-18 11:57 -0400
      Re: memory protection in linux kernels scott@slp53.sl.home (Scott Lurndal) - 2012-10-18 16:24 +0000
        Re: memory protection in linux kernels "Mark" <mark_cruzNOTFORSPAM@hotmail.com> - 2012-10-19 18:08 -0400
          Re: memory protection in linux kernels Ian Collins <ian-news@hotmail.com> - 2012-10-20 12:29 +1300
          Re: memory protection in linux kernels scott@slp53.sl.home (Scott Lurndal) - 2012-10-20 19:49 +0000
      Re: memory protection in linux kernels Rainer Weikusat <rweikusat@mssgmbh.com> - 2012-10-18 17:56 +0100

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