linux-kernel - Re: [PATCH v3 2/7] tracing: probe: Allocate traceprobe_parse

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Message-Id: <20250723092648.3fc87e0fff6abb04a7234a15@kernel.org>
Date: Wed, 23 Jul 2025 09:26:48 +0900
From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/7] tracing: probe: Allocate
 traceprobe_parse_context from heap

On Tue, 22 Jul 2025 18:38:13 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> On Wed, 23 Jul 2025 07:01:46 +0900
> "Masami Hiramatsu (Google)" <mhiramat@...nel.org> wrote:
> 
> > From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
> > 
> > Instead of allocating traceprobe_parse_context on stack, allocate it
> > dynamically from heap (slab).
> > 
> > This change is likely intended to prevent potential stack overflow
> > issues, which can be a concern in the kernel environment where stack
> > space is limited.
> > 
> > Reported-by: kernel test robot <lkp@...el.com>
> > Closes: https://lore.kernel.org/oe-kbuild-all/202506240416.nZIhDXoO-lkp@intel.com/
> > Signed-off-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>
> 
> Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>
> 

Thanks!

> -- Steve


-- 
Masami Hiramatsu (Google) <mhiramat@...nel.org>