linux-kernel - Re: [PATCH] vsprintf.c: Use noinline_for

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

Message-ID: <1268502295.30289.44.camel@Joe-Laptop.home>
Date:	Sat, 13 Mar 2010 09:44:55 -0800
From:	Joe Perches <joe@...ches.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Nick Andrew <nick@...k-andrew.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...e.de>, netdev@...r.kernel.org,
	Bjorn Helgaas <bjorn.helgaas@...com>
Subject: Re: [PATCH] vsprintf.c: Use noinline_for_stack

On Sat, 2010-03-13 at 07:35 -0800, Linus Torvalds wrote:
> On Fri, 12 Mar 2010, Andrew Morton wrote:
> > nice.
> But the kallsyms_lookup()/sprint_symbol() functions don't take a 
> length parameter, so we have to do the worst-case thing (which itself has 
> tons of unnecessary padding).

I sent a patch once about that using a struct
because I didn't like the unbounded sprint
http://lkml.org/lkml/2009/4/15/16

> Gaah. We do _not_ want a kmalloc() or something like that in this path, 
> since its' very much used for oopses (which in turn may be due to various 
> slab bugs etc).

Perhaps a new snprint_symbol function with the
other kallsyms... functions changed as necessary.

thoughts?

--
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/