Re: [uml-user] Problems using DDD to debug kernel in uml?

[Matthew B. <ma...@by...>]

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On Wed, Jul 02, 2003 at 11:49:37AM -0400, Xin Qi wrote:
> Hi,
> 
> I am using ddd to debug kernel in uml. According to manual on the web
> site, when I use 
> 
> att 1
> 
> it comes out:
> 
> ptrace: Operation not permitted
> 
> What should I do? My host system is red-hat 9 and guest system is red-hat
> 7.2, guest kernal is 2.4.20-6um.

Hi Xin, is the guest kernel running setuid?  If so you need to be running
gdb as root to attach to it, you can't even run the debugger as the setuid
user.

cheers,

- -- 
Matthew Bloch                             Bytemark Hosting
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