ioctl32 unknown cmds with 2.6.24-rc1

[Geert Uytterhoeven]

On Thu, 25 Oct 2007, Johannes Berg wrote:
> On Wed, 2007-10-24 at 16:27 +0200, Arnd Bergmann wrote:
> > On Wednesday 24 October 2007, Johannes Berg wrote:
> > >   Show Details
> > >   I've been getting these warnings (many more of them but this is a list
> > > of unique ones) on my quad G5 with 32-bit userspace:
> > > 
> > > ioctl32(cdrom_id:1078): Unknown cmd fd(3) cmd(00005331){t:'S';sz:0} arg(00000000) on /dev/.tmp-3-0
> > > ioctl32(ata_id:1095): Unknown cmd fd(3) cmd(0000030d){t:03;sz:0} arg(ff863970) on /dev/.tmp-3-0
> > > ioctl32(smartd:3563): Unknown cmd fd(3) cmd(0000031f){t:03;sz:0} arg(ffeb5480) on /dev/sda
> > > ioctl32(hald-probe-stor:3761): Unknown cmd fd(4) cmd(00005320){t:'S';sz:0} arg(00000004) on /dev/hda
> > > ioctl32(gnome-terminal:4187): Unknown cmd fd(19) cmd(0000530b){t:'S';sz:0} arg(0fd8e400) on /dev/pts/0
> > > 
> > > Does anybody know whether this is expected?
> > 
> > It's probably my fault, since I changed the compat ioctl handling for
> > block devices. Geert already reported the same, but I haven't had
> > a chance to reproduce it on my system to look into what went wrong.
> > Probably a trivial bug I introduced in block/compat_ioctl.c
> 
> I have to admit that ioctl numbers scare me :) Any idea what I should be
> looking for?

Fortunately there's nothing to really worry about, as it's purely cosmetic :-)

If you want to look into this, the question is just why these messages are
printed now, while they weren't printed before. I don't think any other
behavior got changed.

With kind regards,
 
Geert Uytterhoeven
Software Architect

Sony Network and Software Technology Center Europe
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