Re: [PATCH 1/3] uprobes: install_breakpoint() should fail ifis_swbp_insn() == T

[Peter Zijlstra]

On Wed, 2012-05-30 at 19:49 +0200, Peter Zijlstra wrote:
> 
> Oh, indeed. I overlooked copy_insn() is taking the page from the
> page-cache instead of the page-tables and will thus get the original.
> 

Related to this, what happens when we try to install a probe on a page
that's already been COWed by a ptrace user?

Say gdb did a code modification at or near the intended probe site.
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