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Re: ptrace PEEKTEXT IO error?!

On Wed, 2005-10-05 at 15:54 -0400, Daniel Jacobowitz wrote:
> On Wed, Oct 05, 2005 at 09:06:20PM +0100, David Lecomber wrote:
> > 
> > > > 
> > > > It seems ok at reading memory from addresses on the heap and stack --
> > > > but it barfs at reading memory from the text segment.  [snip]
> > 
> > > No, this is most likely a kernel bug.  This is mapped code, right, not
> > > some mmaped device file (which is not generally accessible by ptrace)?
> > 
> > The code I'm trying to read is an ordinary subroutine in an ordinary C
> > file.  The program does call a library handling infiniband network
> > cards, and there are loads of kernel modules on this machine looking
> > after that.  
> 
> The infiniband code does all sorts of funky things to VM.  It's
> extremely likely that this is repsonsible.

Great, I bet this bug'll cheer them up!  Thanks for the info, I'll chase
their mailing list now.

Cheers
David
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