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

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Message-ID: <m3d43ys3f5.fsf@hase.home>
Date:	Wed, 04 Nov 2009 16:41:34 +0100
From:	Andreas Schwab <schwab@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	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

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.

Andreas.

-- 
Andreas Schwab, schwab@...hat.com
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