Re: [RFA][PATCH 1/5] ftrace/x86: Run a sync after fixup on failure

[H. Peter Anvin]

On 03/03/2014 02:18 PM, Steven Rostedt wrote:
> 
> How's this sound:
> 
> The second bug was that the removal of the breakpoints required the
> "within()" logic updates instead of accessing the ip address directly.
> As kernel text is mapped read-only when CONFIG_DEBUG_RODATA is set, and
> the removal of the breakpoint is a modification of kernel text.
> 

I'd add:

"ftrace_write() includes this, but probe_kernel_write() does not."

	-hpa


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