linux-kernel - Re: [Bug 14537] New: missing compat_ioctl on x86

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Message-Id: <20091104084907.325cd5e5.randy.dunlap@oracle.com>
Date:	Wed, 4 Nov 2009 08:49:07 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Andreas Schwab <schwab@...hat.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Thierry Vignaud <tvignaud@...driva.com>,
	bugzilla-daemon@...zilla.kernel.org,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [Bug 14537] New: missing compat_ioctl on x86_64

On Wed, 04 Nov 2009 16:41:34 +0100 Andreas Schwab wrote:

> Andi Kleen <andi@...stfloor.org> writes:
> 
> > Thomas Gleixner <tglx@...utronix.de> writes:
> >
> >>> - with gnome-terminal:
> >>> ioctl32(gnome-terminal:1755): Unknown cmd fd(19) cmd(0000530b){t:'S';sz:0}
> >>> arg(48111345) on /dev/pts/0
> >>> ioctl32(gnome-terminal:1755): Unknown cmd fd(19) cmd(0000530b){t:'S';sz:0}
> >>> arg(4811134a) on /dev/pts/0
> >>> ioctl32(gnome-terminal:1755): Unknown cmd fd(19) cmd(0000530b){t:'S';sz:0}
> >>> arg(48111351) on /dev/pts/0
> >>
> >> That looks more like an application problem. 'S' is SNDRV_SEQ_IOCTL
> >> which has no ioctl nr 0xb. Also I have no idea why a sound sequencer
> >> ioctl should work on /dev/pts/0 :)
> >
> > ioctl numbers are not always unique (I haven't checked if this is the
> > case here).  But it might be that it's some other ioctl actually.
> 
> 'S' is also used for streams ioctls, 0x530b is I_FIND.

Is that last 'S' in the kernel source tree?
If so, I'll have to find/add it to Documentation/ioctl/ioctl-number.txt,
which I sent an update patch for about 2 weeks ago.  For 'S', it now lists:

 'S'	all	linux/cdrom.h		conflict!
 'S'	80-81	scsi/scsi_ioctl.h	conflict!
 'S'	82-FF	scsi/scsi.h		conflict!
+'S'	00-7F	sound/asequencer.h	conflict!


---
~Randy
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