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Old 01-30-2010, 09:02 PM
Arnd Bergmann
 
Default compat_ioctl: ignore RAID_VERSION ioctl

md ioctls are now handled by the md driver itself, but mdadm
may call RAID_VERSION on other devices as well. Mark the command
as IGNORE_IOCTL so this fails silently rather than printing
an annoying message.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---

On Saturday 30 January 2010, Michael S. Tsirkin wrote:
> Under 2.6.33-rcX (at least rc5 and rc6, didn't check earlier versions),
> I started seeing these messages in dmesg (I do not see these messages on 2.6.32):
>
> [ 16.528951] ioctl32(mdadm:2243): Unknown cmd fd(3) cmd(800c0910){t:09;sz:12} arg(ffb7f9c4) on /dev/sda9

Does this help?

--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1038,6 +1038,8 @@ COMPATIBLE_IOCTL(FIOQSIZE)
#ifdef CONFIG_BLOCK
/* loop */
IGNORE_IOCTL(LOOP_CLR_FD)
+/* md calls this on random blockdevs */
+IGNORE_IOCTL(RAID_VERSION)
/* SG stuff */
COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
COMPATIBLE_IOCTL(SG_GET_TIMEOUT)

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Old 02-07-2010, 09:03 AM
"Rafael J. Wysocki"
 
Default compat_ioctl: ignore RAID_VERSION ioctl

On Sunday 07 February 2010, Michael S. Tsirkin wrote:
> On Sat, Jan 30, 2010 at 11:02:10PM +0100, Arnd Bergmann wrote:
> > md ioctls are now handled by the md driver itself, but mdadm
> > may call RAID_VERSION on other devices as well. Mark the command
> > as IGNORE_IOCTL so this fails silently rather than printing
> > an annoying message.
> >
> > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>
> The patch does not seem to be there in -rc7.
> Since this is fixes a regression, should this go into 2.6.33?

I guess it should.

Do you have a link to the original report or has it been sent privately?

Rafael

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