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From: Dave Chinner <david@fromorbit.com>
To: Joe Landman <joe.landman@gmail.com>
Cc: xfs <xfs@oss.sgi.com>, linux-raid <linux-raid@vger.kernel.org>
Subject: Re: interesting MD-xfs bug
Date: Fri, 10 Apr 2015 08:53:22 +1000	[thread overview]
Message-ID: <20150409225322.GH13731@dastard> (raw)
In-Reply-To: <5526FB2A.8060704@gmail.com>

On Thu, Apr 09, 2015 at 06:20:26PM -0400, Joe Landman wrote:
> 
> 
> On 04/09/2015 06:18 PM, Dave Chinner wrote:
> >On Thu, Apr 09, 2015 at 05:02:33PM -0400, Joe Landman wrote:
> >>If I build an MD raid0 with a non power of 2 chunk size, it appears
> >>that I can mkfs.xfs a file system, but it doesn't show up in blkid
> >>and is not mountable.  Yet, using a power of 2 chunk size, this does
> >>work correctly.   This is kernel 3.18.9.
> >>
> 
> [...]
> 
> >That looks more like a blkid or udev problem. try using blkid -p so
> >that it doesn't look up the cache but directly probes devices for
> >the signatures. strace might tell you a bit more, too. And if the
> >filesystem mounts, then it definitely isn't an XFS problem ;)
> 
> Thats the thing, it didn't mount, even when I used the device name
> directly.

Ok, that's interesting. Let me see if I can reproduce it locally. If
you don't hear otherwise, tracing would still be useful. Thanks for
the bug report, Joe.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

WARNING: multiple messages have this Message-ID (diff)
From: Dave Chinner <david@fromorbit.com>
To: Joe Landman <joe.landman@gmail.com>
Cc: linux-raid <linux-raid@vger.kernel.org>, xfs <xfs@oss.sgi.com>
Subject: Re: interesting MD-xfs bug
Date: Fri, 10 Apr 2015 08:53:22 +1000	[thread overview]
Message-ID: <20150409225322.GH13731@dastard> (raw)
In-Reply-To: <5526FB2A.8060704@gmail.com>

On Thu, Apr 09, 2015 at 06:20:26PM -0400, Joe Landman wrote:
> 
> 
> On 04/09/2015 06:18 PM, Dave Chinner wrote:
> >On Thu, Apr 09, 2015 at 05:02:33PM -0400, Joe Landman wrote:
> >>If I build an MD raid0 with a non power of 2 chunk size, it appears
> >>that I can mkfs.xfs a file system, but it doesn't show up in blkid
> >>and is not mountable.  Yet, using a power of 2 chunk size, this does
> >>work correctly.   This is kernel 3.18.9.
> >>
> 
> [...]
> 
> >That looks more like a blkid or udev problem. try using blkid -p so
> >that it doesn't look up the cache but directly probes devices for
> >the signatures. strace might tell you a bit more, too. And if the
> >filesystem mounts, then it definitely isn't an XFS problem ;)
> 
> Thats the thing, it didn't mount, even when I used the device name
> directly.

Ok, that's interesting. Let me see if I can reproduce it locally. If
you don't hear otherwise, tracing would still be useful. Thanks for
the bug report, Joe.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

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  reply	other threads:[~2015-04-09 22:53 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-09 21:02 interesting MD-xfs bug Joe Landman
2015-04-09 21:02 ` Joe Landman
2015-04-09 22:18 ` Dave Chinner
2015-04-09 22:18   ` Dave Chinner
2015-04-09 22:20   ` Joe Landman
2015-04-09 22:20     ` Joe Landman
2015-04-09 22:53     ` Dave Chinner [this message]
2015-04-09 22:53       ` Dave Chinner
2015-04-09 23:10       ` Dave Chinner
2015-04-09 23:10         ` Dave Chinner
2015-04-09 23:36         ` NeilBrown
2015-04-09 23:36           ` NeilBrown
2015-04-10  1:31           ` Dave Chinner
2015-04-10  1:31             ` Dave Chinner
2015-04-10  3:22             ` NeilBrown
2015-04-10  3:22               ` NeilBrown
2015-04-10  6:05               ` Dave Chinner
2015-04-10  6:05                 ` Dave Chinner
2015-04-10  4:43             ` Roman Mamedov
2015-04-10  4:43               ` Roman Mamedov

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