From: Mark Lord <kernel@teksavvy.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>, linux-input@vger.kernel.org
Subject: Re: 2.6.36/2.6.37: broken compatibility with userspace input-utils ?
Date: Mon, 24 Jan 2011 19:32:08 -0500 [thread overview]
Message-ID: <4D3E1A08.5060303@teksavvy.com> (raw)
In-Reply-To: <20110124175456.GA17855@core.coreip.homeip.net>
On 11-01-24 12:54 PM, Dmitry Torokhov wrote:
> Hi Mark,
>
> On Sun, Jan 23, 2011 at 12:03:47PM -0500, Mark Lord wrote:
>> As of the 2.6.36 kernel, the userspace commands lsinput and input-kbd
>> no longer work. And if I grab newer/patched versions of those from the latest
>> Ubuntu 10.10, then those newer/patched versions do not work with kernels
>> *before* 2.6.36.
>>
>> At first glance, this looks like a visible regression.
>> Is there a version of input-utils that works with both
>> old and new kernels ?
>>
>
> The event protocol number was updated to reflect support of large
> scancodes, unfortunately some of the utilities expected exact version
> and refuse to work with updated one.
So is there a danger of memory corruption if running a binary
that doesn't check the version number?
In other words, did the size and/or format of returned data
change for an ioctl() or something here?
If so, then that is a user-visible regression, and shouldn't happen.
One correct way to handle that, would be to create a new ioctl(),
and mark the old one as deprecated, for removal a few years later perhaps.
???
Thanks
next prev parent reply other threads:[~2011-01-25 0:32 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-23 17:03 2.6.36/2.6.37: broken compatibility with userspace input-utils ? Mark Lord
2011-01-24 17:54 ` Dmitry Torokhov
2011-01-25 0:32 ` Mark Lord [this message]
2011-01-25 0:55 ` Dmitry Torokhov
2011-01-25 4:13 ` Mark Lord
2011-01-25 4:20 ` Dmitry Torokhov
2011-01-25 4:37 ` Mark Lord
2011-01-25 4:43 ` Mark Lord
2011-01-25 4:55 ` Dmitry Torokhov
2011-01-25 5:04 ` Mark Lord
2011-01-25 5:07 ` Mark Lord
2011-01-25 5:15 ` Mark Lord
2011-01-25 5:31 ` Dmitry Torokhov
2011-01-25 6:52 ` Dmitry Torokhov
2011-01-25 14:42 ` Extending rc-core/userspace to handle bigger scancodes - Was: " Mauro Carvalho Chehab
2011-01-25 16:55 ` Dmitry Torokhov
2011-01-26 9:44 ` Mauro Carvalho Chehab
2011-01-25 11:42 ` Mauro Carvalho Chehab
2011-01-25 14:32 ` Mark Lord
2011-01-25 16:48 ` Dmitry Torokhov
2011-01-25 20:09 ` Linus Torvalds
2011-01-25 20:54 ` Dmitry Torokhov
2011-01-25 21:01 ` Dmitry Torokhov
2011-01-25 21:20 ` Linus Torvalds
2011-01-25 21:20 ` Linus Torvalds
2011-01-25 21:50 ` Dmitry Torokhov
2011-01-25 22:00 ` Mauro Carvalho Chehab
2011-01-25 22:22 ` Mark Lord
2011-01-25 23:29 ` Dmitry Torokhov
2011-01-26 2:00 ` Dmitry Torokhov
2011-01-26 11:26 ` Mauro Carvalho Chehab
2011-01-26 13:08 ` Gerd Hoffmann
2011-01-26 14:18 ` Mauro Carvalho Chehab
2011-01-26 14:52 ` Gerd Hoffmann
2011-01-26 16:46 ` Dmitry Torokhov
2011-01-26 16:51 ` Dmitry Torokhov
2011-01-26 17:29 ` Mauro Carvalho Chehab
2011-01-26 18:24 ` Dmitry Torokhov
2011-01-26 19:16 ` Gerd Hoffmann
2011-01-26 19:28 ` Mark Lord
2011-01-26 20:09 ` Gerd Hoffmann
2011-01-26 19:28 ` Mauro Carvalho Chehab
2011-01-26 19:32 ` Dmitry Torokhov
2011-01-26 20:07 ` Gerd Hoffmann
2011-01-26 19:27 ` Mark Lord
2011-01-26 14:58 ` Mark Lord
2011-01-26 17:41 ` Mauro Carvalho Chehab
2011-01-26 17:59 ` Dmitry Torokhov
2011-01-26 19:30 ` Mark Lord
2011-01-26 15:05 ` Mark Lord
2011-01-26 16:44 ` Dmitry Torokhov
2011-01-26 19:31 ` Mark Lord
2011-01-26 19:38 ` Dmitry Torokhov
2011-01-26 17:32 ` Mauro Carvalho Chehab
2011-01-26 19:33 ` Mark Lord
2011-01-26 19:41 ` Dmitry Torokhov
2011-01-26 19:47 ` Mark Lord
2011-01-26 19:50 ` Dmitry Torokhov
2011-01-26 21:41 ` Mark Lord
2011-01-26 21:49 ` Mark Lord
2011-01-26 22:07 ` Dmitry Torokhov
2011-01-26 22:04 ` Dmitry Torokhov
2011-01-27 1:01 ` Mark Lord
2011-01-27 1:07 ` Mark Lord
2011-01-27 2:12 ` Dmitry Torokhov
2011-01-27 3:18 ` Mark Lord
2011-01-27 6:38 ` Dmitry Torokhov
2011-01-27 10:30 ` Mauro Carvalho Chehab
2011-01-27 15:00 ` Mark Lord
2011-01-27 17:21 ` Dmitry Torokhov
2011-01-27 18:58 ` Mauro Carvalho Chehab
2011-01-28 9:39 ` Dmitry Torokhov
2011-01-28 11:55 ` Mauro Carvalho Chehab
2011-01-28 16:40 ` Dmitry Torokhov
2011-01-28 17:01 ` Mauro Carvalho Chehab
2011-01-28 17:33 ` Dmitry Torokhov
2011-01-28 18:15 ` Mauro Carvalho Chehab
2011-01-28 18:34 ` Dmitry Torokhov
2011-01-28 20:53 ` Mark Lord
2011-01-27 14:54 ` Mark Lord
2011-01-27 16:39 ` Dmitry Torokhov
2011-01-27 18:12 ` Mark Lord
2011-01-27 19:53 ` Dmitry Torokhov
2011-01-28 16:42 ` Dmitry Torokhov
2011-01-28 20:55 ` Mark Lord
2011-01-28 21:03 ` Mark Lord
2011-01-28 21:09 ` Dmitry Torokhov
2011-01-25 22:25 ` Linus Torvalds
2011-01-25 5:29 ` Dmitry Torokhov
2011-01-25 14:28 ` Mark Lord
2011-02-02 14:31 ` Chase Douglas
2011-02-02 16:58 ` Dmitry Torokhov
2011-02-02 20:00 ` Chase Douglas
2011-02-02 21:54 ` Mark Lord
2011-02-02 22:04 ` Dmitry Torokhov
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