From: Eric Sandeen <sandeen@redhat.com>
To: Dave Jones <davej@redhat.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>,
Karel Zak <kzak@redhat.com>
Subject: Re: Linux 2.6.39-rc3
Date: Tue, 12 Apr 2011 15:20:14 -0500 [thread overview]
Message-ID: <4DA4B3FE.2080609@redhat.com> (raw)
In-Reply-To: <20110412190934.GA12082@redhat.com>
On 4/12/11 2:09 PM, Dave Jones wrote:
> On Mon, Apr 11, 2011 at 05:40:11PM -0700, Linus Torvalds wrote:
> > It's been another almost spookily calm week. Usually this kind of
> > calmness happens much later in the -rc series (during -rc7 or -rc8,
> > say), but I'm not going to complain. I'm just still waiting for the
> > other shoe to drop.
>
> Here's an odd one.
>
> my laptop's fstab has
>
> /dev/mapper/vg_adamo-lv_home /home ext4 defaults 1 2
>
> on 2.6.38, /proc/mounts contains ..
>
> /dev/mapper/vg_adamo-lv_home /home ext4 rw,seclabel,relatime,barrier=1,data=ordered 0 0
>
> on 2.6.39rc3 it looks like..
>
> /dev/mapper/vg_adamo-lv_home /home ext4 rw,seclabel,relatime,user_xattr,barrier=1,data=ordered 0 0
>
>
> Which looks like ea6633369458992241599c9d9ebadffaeddec164, so nothing untoward..
>
> however, the output of mount looks very confused..
>
> .38:
> /dev/mapper/vg_adamo-lv_home on /home type ext4 (rw,relatime,seclabel,barrier=1,data=ordered)
>
> .39:
> - on /home type 79a9-4526-888c-1f86d35a6704 (rw,relatime,ext4)
>
> It looks like /proc/self/mountinfo broke abi.
>
> .38:
> 48 45 253:3 / /home rw,relatime - ext4 /dev/mapper/vg_adamo-lv_home rw,seclabel,barrier=1,data=ordered
>
> .39:
> 46 22 253:3 / /home rw,relatime uuid:f3971858-79a9-4526-888c-1f86d35a6704 - ext4 /dev/mapper/vg_adamo-lv_home rw,seclabel,user_xattr,barrier=1,data=ordered
>
so it's supposed to be like this, from Documentation/filesystems/proc.txt:
> This file contains lines of the form:
>
> 36 35 98:0 /mnt1 /mnt2 rw,noatime master:1 - ext3 /dev/root rw,errors=continue
> (1)(2)(3) (4) (5) (6) (7) (8) (9) (10) (11)
>
> (1) mount ID: unique identifier of the mount (may be reused after umount)
> (2) parent ID: ID of parent (or of self for the top of the mount tree)
> (3) major:minor: value of st_dev for files on filesystem
> (4) root: root of the mount within the filesystem
> (5) mount point: mount point relative to the process's root
> (6) mount options: per mount options
> (7) optional fields: zero or more fields of the form "tag[:value]"
> (8) separator: marks the end of the optional fields
> (9) filesystem type: name of filesystem of the form "type[.subtype]"
> (10) mount source: filesystem specific information or "none"
> (11) super options: per super block options
it does seem that the new UUID info is in a perfectly fine place (the optional fields slot), at least per the docs, so I guess I might blame the mount binary for not following the aforementioned rules...
Maybe Karel knows? cc'd...
-Eric
>
> Dave
>
next prev parent reply other threads:[~2011-04-12 20:20 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-12 0:40 Linux 2.6.39-rc3 Linus Torvalds
2011-04-12 9:02 ` Joerg Roedel
2011-04-12 14:15 ` Alex Deucher
2011-04-12 18:44 ` Joerg Roedel
2011-04-13 1:27 ` David Rientjes
2011-04-13 6:46 ` Ingo Molnar
2011-04-13 17:21 ` Joerg Roedel
2011-04-13 18:39 ` H. Peter Anvin
2011-04-13 19:26 ` Joerg Roedel
2011-04-13 18:51 ` H. Peter Anvin
2011-04-13 19:24 ` Joerg Roedel
2011-04-13 19:14 ` Yinghai Lu
2011-04-13 19:34 ` Joerg Roedel
2011-04-13 20:48 ` Yinghai Lu
2011-04-13 20:54 ` Linus Torvalds
2011-04-13 21:23 ` Yinghai Lu
2011-04-13 23:39 ` Linus Torvalds
2011-04-14 0:10 ` Yinghai Lu
2011-04-14 2:03 ` H. Peter Anvin
2011-04-14 2:27 ` Linus Torvalds
2011-04-14 2:27 ` Linus Torvalds
2011-04-14 2:33 ` Linus Torvalds
2011-04-14 2:33 ` Linus Torvalds
2011-04-14 4:03 ` Tejun Heo
2011-04-14 9:36 ` Joerg Roedel
2011-04-14 8:09 ` Alan Cox
2011-04-14 8:09 ` Alan Cox
2011-04-15 13:11 ` Joerg Roedel
2011-04-15 13:16 ` Ingo Molnar
2011-04-15 14:33 ` Joerg Roedel
2011-04-15 16:11 ` Alex Deucher
2011-04-15 15:46 ` Joerg Roedel
2011-04-15 16:11 ` Jerome Glisse
2011-04-16 16:35 ` Joerg Roedel
2011-04-16 16:35 ` Joerg Roedel
2011-04-16 18:54 ` Jerome Glisse
2011-04-16 18:54 ` Jerome Glisse
2011-04-17 14:09 ` Joerg Roedel
2011-04-18 1:12 ` Jerome Glisse
2011-04-18 15:23 ` Alex Deucher
2011-04-18 15:23 ` Alex Deucher
2011-04-18 15:29 ` Jerome Glisse
2011-04-18 15:33 ` Alex Deucher
2011-04-18 15:59 ` Jerome Glisse
2011-04-18 16:35 ` Alex Deucher
2011-04-15 14:04 ` Andreas Herrmann
2011-04-15 14:28 ` Joerg Roedel
2011-04-15 14:16 ` Alexandre Demers
2011-04-15 14:27 ` Joerg Roedel
2011-04-15 14:27 ` Joerg Roedel
2011-04-15 18:59 ` Alexandre Demers
2011-04-15 19:06 ` Ingo Molnar
2011-04-15 19:18 ` Yinghai Lu
2011-04-15 20:22 ` H. Peter Anvin
2011-04-16 12:01 ` Joerg Roedel
2011-04-16 12:01 ` Joerg Roedel
2011-04-16 12:00 ` Joerg Roedel
2011-04-16 12:21 ` Ingo Molnar
2011-04-16 12:21 ` Ingo Molnar
2011-04-16 0:03 ` [tip:x86/urgent] x86, amd: Disable GartTlbWlkErr when BIOS forgets it tip-bot for Joerg Roedel
2011-05-06 21:17 ` Linux 2.6.39-rc3 Linus Torvalds
2011-04-13 21:50 ` Joerg Roedel
2011-04-13 21:59 ` Yinghai Lu
2011-04-13 22:11 ` H. Peter Anvin
2011-04-13 22:01 ` H. Peter Anvin
2011-04-13 22:22 ` Joerg Roedel
2011-04-13 22:31 ` H. Peter Anvin
2011-04-14 8:59 ` Joerg Roedel
2011-04-13 19:48 ` Alex Deucher
2011-04-14 1:58 ` H. Peter Anvin
2011-04-14 1:58 ` H. Peter Anvin
2011-04-14 2:07 ` Dave Airlie
2011-04-14 6:10 ` H. Peter Anvin
2011-04-14 8:56 ` Joerg Roedel
2011-04-14 9:07 ` Dave Airlie
2011-04-14 9:11 ` Ingo Molnar
2011-04-14 14:31 ` H. Peter Anvin
2011-04-14 14:28 ` Alex Deucher
2011-04-14 21:09 ` Joerg Roedel
2011-04-14 21:34 ` Alex Deucher
2011-04-15 6:50 ` Joerg Roedel
2011-04-15 14:49 ` Andreas Herrmann
2011-04-15 8:26 ` Michel Dänzer
2011-04-15 8:26 ` Michel Dänzer
2011-04-15 8:55 ` Joerg Roedel
2011-04-12 19:09 ` Dave Jones
2011-04-12 19:21 ` Dave Jones
2011-04-12 19:55 ` Linus Torvalds
2011-04-12 20:13 ` Dave Jones
2011-04-14 8:20 ` Aneesh Kumar K.V
2011-04-18 22:57 ` Kay Sievers
2011-04-18 23:02 ` Dave Jones
2011-04-18 23:14 ` Kay Sievers
2011-04-19 11:42 ` Ted Ts'o
2011-04-19 8:23 ` Aneesh Kumar K.V
2011-04-19 8:37 ` Steven Whitehouse
2011-04-19 9:55 ` Kay Sievers
2011-04-12 20:20 ` Eric Sandeen [this message]
2011-04-12 20:27 ` Karel Zak
2011-04-12 20:33 ` Linus Torvalds
2011-04-14 20:24 ` Borislav Petkov
2011-04-14 20:55 ` Linus Torvalds
2011-04-15 4:14 ` Christoph Hellwig
2011-04-20 20:12 ` Borislav Petkov
2011-04-12 21:21 Alexandre Demers
2011-04-13 4:32 George Spelvin
2011-04-13 14:54 ` Linus Torvalds
2011-04-14 18:28 ` Pavel Machek
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