Re: [PATCH -tip v3 00/23] kprobes: introduce NOKPROBE_SYMBOL() and general cleaning of kprobe blacklist

From: Frank Ch. Eigler
Date: Wed Nov 20 2013 - 09:27:47 EST



masami.hiramatsu.pt wrote:

> [...] This series also includes a change which prohibits probing on
> the address in .entry.text because the code is used for very
> low-level sensitive interrupt/syscall entries. Probing such code may
> cause unexpected result (actually most of that area is already in
> the kprobe blacklist). So I've decide to prohibit probing all of
> them. [...]

Does this new blacklist cover enough that the kernel now survives a
broadly wildcarded perf-probe, e.g. over e.g. all of its kallsyms?


- FChE
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