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:	Sun, 7 Jun 2009 18:33:56 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	yinghai@...nel.org, tglx@...utronix.de, mingo@...e.hu
Subject: Re: [tip:irq/numa] x86, apic: Fix dummy apic read operation
	together with broken MP handling

[tip-bot for Cyrill Gorcunov - Sun, Jun 07, 2009 at 02:24:31PM +0000]
| Commit-ID:  103428e57be323c3c5545db8ad12667099bc6005
| Gitweb:     http://git.kernel.org/tip/103428e57be323c3c5545db8ad12667099bc6005
| Author:     Cyrill Gorcunov <gorcunov@...nvz.org>
| AuthorDate: Sun, 7 Jun 2009 16:48:40 +0400
| Committer:  Ingo Molnar <mingo@...e.hu>
| CommitDate: Sun, 7 Jun 2009 16:08:05 +0200
| 
| x86, apic: Fix dummy apic read operation together with broken MP handling
|

Hi Ingo, this commit will fix your case but to be fair
I'm a bit scared of disable_apic variable now spreading
all over the files. I've checked Makefile's and Kconfig
for situation when SMP turned on and apic.c is not compiled
(from hw POV on x86 it should not be possible since SMP
 requires APIC chip but dunno -- just something from
 inside of me says there could be a hidden problem).

I was also thinking about some common bitfiels for
apic features -- like one bit to figure out if
it was disabled via boot line, one bit for x2apic
mode enabled and so on. We have the cpu_has_...
helpers maybe the same for apic could be implemented?

How do you think?
 
	-- Cyrill
--
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