From: NeilBrown <neilb@suse.de>
To: Steven Haigh <netwiz@crc.id.au>
Cc: John Robinson <john.robinson@anonymous.org.uk>,
linux-raid@vger.kernel.org
Subject: Re: mdadm: sending ioctl 1261 to a partition!
Date: Tue, 6 Mar 2012 07:01:43 +1100 [thread overview]
Message-ID: <20120306070143.4f8abc0e@notabene.brown> (raw)
In-Reply-To: <4F550BA8.3010306@crc.id.au>
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On Tue, 06 Mar 2012 05:53:28 +1100 Steven Haigh <netwiz@crc.id.au> wrote:
> On 6/03/2012 1:52 AM, John Robinson wrote:
> > On 05/03/2012 13:03, Steven Haigh wrote:
> >> I've noticed that recently I've managed to get a ton of messages like
> >> this at boot:
> >>
> >> mdadm: sending ioctl 1261 to a partition!
> >> mdadm: sending ioctl 800c0910 to a partition!
> >
> > It's probably harmless.
> >
> > http://lists.debian.org/debian-kernel/2012/01/msg01105.html says "This
> > warning was introduced as part of the fix for CVE-2011-4127"
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=783955#c4 says "Actually,
> > the warning seems a false positive to me"
>
> I did see these - and I probably should have mentioned it in the
> original post. Naughty me for posting at times I should really be asleep.
>
> The general jist of it seemed to be "it always failed before, now we
> just know about it". What makes me wonder is that if it always failed
> before, why do we do it in the first place?
>
800c0910 is 'are you an md device'. So failure is a valid response.
1261 is flush-bufs. I hope that does still work on partitions....
NeilBrown
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next prev parent reply other threads:[~2012-03-05 20:01 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-05 13:03 mdadm: sending ioctl 1261 to a partition! Steven Haigh
2012-03-05 14:52 ` John Robinson
2012-03-05 18:53 ` Steven Haigh
2012-03-05 20:01 ` NeilBrown [this message]
2012-03-06 2:00 ` Steven Haigh
2012-03-06 2:27 ` NeilBrown
2012-03-06 2:38 ` Steven Haigh
2012-03-06 5:29 ` H. Peter Anvin
2012-03-08 0:04 ` NeilBrown
2012-03-08 10:54 ` Jan Kara
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