linux-kernel - Re: Linux 3.3-rc5

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Date:	Thu, 01 Mar 2012 19:17:48 -0500
From:	Mark Lord <kernel@...savvy.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 3.3-rc5

On 12-03-01 11:22 AM, Linus Torvalds wrote:
> On Thu, Mar 1, 2012 at 6:47 AM, Mark Lord <kernel@...savvy.com> wrote:
>>
>> It's close (after adding a missing left-paren), but not 100% working yet.
>> In particular, this command fails to get valid data:  i8kctl bios
>>
>>    ioctl(3, I8K_BIOS_VERSION, 0xbfc543c8)  = -1 EINVAL (Invalid argument)
>
> Hmm. That makes no sense.

No, that was my misinterpretation.
The BIOS_VERSION call is broken for different reasons,
and my original all-inclusive patch has a fix for it too.  :)

> Does *this* work? And if not, can you do an strace, but use the "-e
> raw=ioctl" option to make it show the ioctl numbers as raw hex to
> verify..

Here's a go, 64-bit kernel (3.2.8), 32-bit userspace:

Dell laptop SMM driver v1.14 21/02/2005 Massimo Dal Zotto (dz@...ian.org)
ioctl32(i8kctl:1474): Unknown cmd fd(3) cmd(80046980){t:'i';sz:4} arg(ff8b1fd8)
on /proc/i8k
ioctl32(i8kctl:1475): Unknown cmd fd(3) cmd(c0046986){t:'i';sz:4} arg(ff90ed5c)
on /proc/i8k
ioctl32(i8kctl:1475): Unknown cmd fd(3) cmd(c0046986){t:'i';sz:4} arg(ff90ed5c)
on /proc/i8k

I'll reboot/redo that again with strace shortly.
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