linux-kernel - Re: [PATCH] [RFC][PATCH] Remove /proc/kallsyms size verification check in perf

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAPz6YkUNaCBoAE3cTgNd8p8kuOPg3yCqfJ0Q=EVad5bzffmk-w@mail.gmail.com>
Date:	Mon, 11 Jul 2011 16:56:40 -0700
From:	Sonny Rao <sonnyrao@...omium.org>
To:	acme@...hat.com
Cc:	rostedt@...dmis.org, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Sonny Rao <sonnyrao@...omium.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [RFC][PATCH] Remove /proc/kallsyms size verification
 check in perf

>On Mon, Jul 11, 2011 at 3:57 PM, Sonny Rao <sonnyrao@...omium.org> wrote:
> The check was failing when I was trying to profile system startup
> because the modules were being loaded and causing the size of
> kallsyms to change.  At first I changed the check to simply make
> sure the size of kallsyms increased, but that wouldn't cover the
> case of a module getting removed (or some removed and larger ones
> loaded).  I can't see any purpose to checking the size
> right after reading it either, so remove the check altogether.

Ignore this patch; I just realized it is actually copying all of
kallsyms into the
trace output file.  I'll have to do something a bit smarter to fix
this problem --
I'll post a new patch when it's ready (and tested)

Sonny
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/