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]
Date:	Mon, 13 Jul 2009 10:11:40 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	Jan Beulich <JBeulich@...ell.com>
Cc:	Rusty Russell <rusty@...tcorp.com.au>, Ingo Molnar <mingo@...e.hu>,
	tony.luck@...el.com, Jon Masters <jonathan@...masters.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-modules@...r.kernel.org, hpa@...or.com
Subject: Re: [PATCH] reduce export symbol CRC table size on 64-bit	 archs

Jan Beulich napsal(a):
> Actually I meanwhile think that module-init-tools can easily detect the changed
> layout without any further kernel side adjustments: Since it is known that a
> CRC always is a 32-bit value, simply checking whether the so-far-used 64-bit
> value has more than 32 significant bits should suffice: If so, the new layout
> is being used (with the symbol name starting at offset 4), else the old one is
> in effect (name at offset 8). This ought to be a pretty trivial change to that
> code.

But old module-init-tools will continue reading garbage in this case.

Michal
--
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/

Powered by blists - more mailing lists