Re: [PATCH 07/11 v2] livepatch: Trigger WARNING if livepatch function fails due to recursion

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On Fri 2020-10-30 17:31:49, Steven Rostedt wrote:
> From: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx>
> 
> If for some reason a function is called that triggers the recursion
> detection of live patching, trigger a warning. By not executing the live
> patch code, it is possible that the old unpatched function will be called
> placing the system into an unknown state.
> 
> Link: https://lore.kernel.org/r/20201029145709.GD16774@alley
> 
> Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
> Cc: Jiri Kosina <jikos@xxxxxxxxxx>
> Cc: Miroslav Benes <mbenes@xxxxxxx>
> Cc: Joe Lawrence <joe.lawrence@xxxxxxxxxx>
> Cc: live-patching@xxxxxxxxxxxxxxx
> Suggested-by: Petr Mladek <pmladek@xxxxxxxx>

It has actually been first suggested by Miroslav. He might want
to take the fame and eventual shame ;-)

> Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

Reviewed-by: Petr Mladek <pmladek@xxxxxxxx>

Best Regards,
Petr



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