linux-kernel - Re: [PATCH 4/8] tracing: Have persistent trace instances save KASLR offset

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Message-Id: <20250207111500.294309a7d3ed7253dac2f210@kernel.org>
Date: Fri, 7 Feb 2025 11:15:00 +0900
From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, Mark
 Rutland <mark.rutland@....com>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 4/8] tracing: Have persistent trace instances save KASLR
 offset

On Thu, 6 Feb 2025 20:03:16 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:

> On Fri, 7 Feb 2025 09:58:44 +0900
> Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:
> 
> > > Which would make sure that the scratch size contains enough memory to hold
> > > 128 modules.  
> > 
> > Yeah, this idea looks godd to me. BTW, the scratch size will be aligned to
> > the subbuffer size (or page size?)
> 
> I don't think it needs to be. I think it just needs to be aligned to word
> size.

Ah, OK. The first cpu_meta data is not need to be aligned.

Thank you,

> 
> -- Steve


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