Debian Bug report logs - #283323
udev: causes /etc/rc0.d/S40umountfs to segfault

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Adeodato Simó <asp16@alu.ua.es>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: udev: causes /etc/rc0.d/S40umountfs to segfault

Date: Sun, 28 Nov 2004 06:24:19 +0100

Package: udev
Version: 0.046-3
Severity: important

hi again,

  since that the udev-mtab script was introduced, I get umount to
  segfault in the shutdown process, leaving the filesystems in an
  unclean state (hence the severity). e.g., running

    # umount -ttmpfs -a -r

  produces:

    umount: none busy - remounted read-only
    Segmentation fault

  though this issue probably needs attention in the 'mount' package side
  (feel free to clone), I think it's reasonable to expect udev to
  properly umount itself upon system shutdown (specially now that it
  writes the mount status to /etc/mtab).

  is there a rationale for a S38udev link not existing in runlevels 0
  and 6? or perhaps turn init.d/udev-mtab into a full init script with
  start and stop...

  thanks,


-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable'), (101, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.9-1-686
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8)

Versions of packages udev depends on:
ii  debconf [debconf-2.0]    1.4.40          Debian configuration management sy
ii  hotplug                  0.0.20040329-16 Linux Hotplug Scripts
ii  initscripts              2.86-5          Standard scripts needed for bootin
ii  libc6                    2.3.2.ds1-18    GNU C Library: Shared libraries an
ii  makedev                  2.3.1-75        Creates device files in /dev

-- debconf information:
  udev/devfs-warning:
  udev/reboot-warning:

-- 
Adeodato Simó
    EM: asp16 [ykwim] alu.ua.es | PK: DA6AE621
 
A. Because it breaks the logical sequence of discussion
Q. Why is top posting bad?

Message #10 received at 283323@bugs.debian.org (full text, mbox, reply):

From: Antonio Biasio <netbix@debianet.dyndns.org>

To: Debian Bug Tracking System <283323@bugs.debian.org>

Subject: same problem after upgrade udev

Date: Sun, 28 Nov 2004 12:17:54 +0100

Package: udev
Version: 0.046-3
Followup-For: Bug #283323


Conferm,
Same problem after upgrade udev.
In shoutdown i see same message.


-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.9-686-smp
Locale: LANG=it_IT.UTF-8@euro, LC_CTYPE=it_IT.UTF-8@euro (charmap=UTF-8)

Versions of packages udev depends on:
ii  debconf [debconf-2.0]    1.4.40          Debian configuration management sy
ii  hotplug                  0.0.20040329-16 Linux Hotplug Scripts
ii  initscripts              2.86-5          Standard scripts needed for bootin
ii  libc6                    2.3.2.ds1-18    GNU C Library: Shared libraries an
ii  makedev                  2.3.1-75        Creates device files in /dev

-- debconf information:
  udev/devfs-warning:
* udev/reboot-warning:

Message #15 received at 283323@bugs.debian.org (full text, mbox, reply):

From: md@Linux.IT (Marco d'Itri)

To: Adeodato Simó <asp16@alu.ua.es>, 283323@bugs.debian.org

Cc: control@bugs.debian.org, mount@packages.debian.org

Subject: Re: Bug#283323: udev: causes /etc/rc0.d/S40umountfs to segfault

Date: Sun, 28 Nov 2004 15:03:26 +0100

[Message part 1 (text/plain, inline)]

reassign 283323 mount
thanks

On Nov 28, Adeodato Simó <asp16@alu.ua.es> wrote:

>   since that the udev-mtab script was introduced, I get umount to
>   segfault in the shutdown process, leaving the filesystems in an
>   unclean state (hence the severity). e.g., running
> 
>     # umount -ttmpfs -a -r
> 
>   produces:
> 
>     umount: none busy - remounted read-only
>     Segmentation fault
Reassigned to mount. Whatever the problem is, it should not segfault.

>   though this issue probably needs attention in the 'mount' package side
>   (feel free to clone), I think it's reasonable to expect udev to
>   properly umount itself upon system shutdown (specially now that it
>   writes the mount status to /etc/mtab).
No, why bother? It's a ramfs, I see no reason to waste time unmounting
it. Also don't forget that the devices in it are probably needed by the
other scripts which would be run after the one unmounting it.
Actually, I guess that maybe mount is segfaulting because it unmounts
/dev and then it can't find the other devices it has to unmount.

-- 
ciao, |
Marco | [9457 coreA16yoRRDw]

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Message #22 received at 283323@bugs.debian.org (full text, mbox, reply):

From: Adeodato Simó <asp16@alu.ua.es>

To: Marco d'Itri <md@Linux.IT>, 283323@bugs.debian.org

Subject: Re: Bug#283323: udev: causes /etc/rc0.d/S40umountfs to segfault

Date: Mon, 29 Nov 2004 10:10:28 +0100

* Marco d'Itri [Sun, 28 Nov 2004 15:03:26 +0100]:
> reassign 283323 mount
> thanks

> On Nov 28, Adeodato Simó <asp16@alu.ua.es> wrote:

> >   since that the udev-mtab script was introduced, I get umount to
> >   segfault in the shutdown process, leaving the filesystems in an
> >   unclean state (hence the severity). e.g., running

> >     # umount -ttmpfs -a -r

> >   produces:

> >     umount: none busy - remounted read-only
> >     Segmentation fault
> Reassigned to mount. Whatever the problem is, it should not segfault.

  while I agree that mount is certainly at fault, I feel that until this
  issue is resolved udev 0.46 should be kept out of sarge (*if* some
  other people confirm the mount bug, of course).

-- 
Adeodato Simó
    EM: asp16 [ykwim] alu.ua.es | PK: DA6AE621
    Listening to: Eric Clapton - Eric Clapton - River of tears
 
America may be unique in being a country which has leapt from barbarism
to decadence without touching civilization.
                -- John O'Hara

Message #27 received at 283323@bugs.debian.org (full text, mbox, reply):

From: Luis Sanjuan <lj.sanjuan@ya.com>

To: Debian Bug Tracking System <283323@bugs.debian.org>

Subject: Same problem here

Date: Tue, 30 Nov 2004 11:51:19 +0100

Package: mount
Version: 2.12h-3
Followup-For: Bug #283323

I can reproduce what it is said by first poster:
Segfault at shutdown
Segfault at umount --ttmpfs -a -r

Thx.

-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: powerpc (ppc)
Kernel: Linux 2.6.9
Locale: LANG=es_ES@euro, LC_CTYPE=es_ES@euro (charmap=ISO-8859-15)

Versions of packages mount depends on:
ii  libc6                       2.3.2.ds1-18 GNU C Library: Shared libraries an

-- no debconf information

Message #32 received at 283323@bugs.debian.org (full text, mbox, reply):

From: md@Linux.IT (Marco d'Itri)

To: 283323@bugs.debian.org

Cc: control@bugs.debian.org, mount@packages.debian.org

Subject: Re: Bug#283323: udev: causes /etc/rc0.d/S40umountfs to segfault

Date: Tue, 30 Nov 2004 12:20:54 +0100

[Message part 1 (text/plain, inline)]

severity 283323 critical
thanks

On Nov 28, Marco d'Itri <md@Linux.IT> wrote:

> >   since that the udev-mtab script was introduced, I get umount to
> >   segfault in the shutdown process, leaving the filesystems in an
> >   unclean state (hence the severity). e.g., running
I have been able to reproduce this on my system as well.

Justification: breaks an unrelated package, may cause data loss.

-- 
ciao, |
Marco | [9493 tipyRXZ02rT/A]

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Message #39 received at 283323@bugs.debian.org (full text, mbox, reply):

From: Antonio Biasio <netbix@debianet.dyndns.org>

To: Debian Bug Tracking System <283323@bugs.debian.org>

Subject: mount: same problem

Date: Thu, 02 Dec 2004 15:25:58 +0100

Package: mount
Version: 2.12h-3
Followup-For: Bug #283323


I have same problem on my system.


-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.9-686-smp
Locale: LANG=it_IT.UTF-8@euro, LC_CTYPE=it_IT.UTF-8@euro (charmap=UTF-8)

Versions of packages mount depends on:
ii  libc6                       2.3.2.ds1-18 GNU C Library: Shared libraries an

-- no debconf information

Message #42 received at 283323-submitter@bugs.debian.org (full text, mbox, reply):

From: Thomas Hood <jdthood@aglu.demon.nl>

To: 284016@bugs.debian.org

Cc: md@linux.it, 283323-submitter@bugs.debian.org

Subject: umount segfaulting at shutdown

Date: Fri, 03 Dec 2004 08:15:32 +0100

This (#284016) is presumably the same issue as #283323.

umount should not segfault.

However, we should also see if we can find a workaround in the
initscript.

-- 
Thomas Hood

Message #47 received at 283323@bugs.debian.org (full text, mbox, reply):

From: md@Linux.IT (Marco d'Itri)

To: Thomas Hood <jdthood@aglu.demon.nl>

Cc: 284016@bugs.debian.org, 283323@bugs.debian.org

Subject: Re: umount segfaulting at shutdown

Date: Fri, 3 Dec 2004 09:27:31 +0100

[Message part 1 (text/plain, inline)]

On Dec 03, Thomas Hood <jdthood@aglu.demon.nl> wrote:

> This (#284016) is presumably the same issue as #283323.
Looks likt it is.

> umount should not segfault.
> 
> However, we should also see if we can find a workaround in the
> initscript.
I can't think of a workaround, but if this will not be fixed in time for
sarge I will just disable the udev-mtab init script in the udev package.

-- 
ciao, |
Marco | [9542 coQqUXgqAEoPs]

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Message #52 received at 283323@bugs.debian.org (full text, mbox, reply):

From: "Shot (Piotr Szotkowski)" <shot@hot.pl>

To: 283323@bugs.debian.org

Subject: Same problem here

Date: Sat, 4 Dec 2004 11:28:49 +0100

[Message part 1 (text/plain, inline)]

Hello.

Just to confirm - the same happens here. Shutdown looks like this:

Unmounting remote and non-toplevel virtual filesystems...done.
Deconfiguring network interfaces...done.
Deactivating swap...unmount: none busy - remounted read-only
Segmentation fault
done.
Unmounting local filesystems...unmount: none busy - remounted read-only
Segmentation fault
done.
Shutting down LVM Volume Groups...
  Incorrect metadata area header checksum
  Can't deactivate volume group "main" with 4 open logical volume(s)
Shutdown: hda
Power down.

shot@desaxe:~$ LC_MESSAGES=C apt-cache policy mount udev
mount:
  Installed: 2.12h-4
  Candidate: 2.12h-4
  Version Table:
 *** 2.12h-4 0
        500 http://ftp.debian.org unstable/main Packages
        100 /var/lib/dpkg/status
udev:
  Installed: 0.046-4
  Candidate: 0.046-4
  Version Table:
 *** 0.046-4 0
        500 http://ftp.debian.org unstable/main Packages
        100 /var/lib/dpkg/status

Pozdrav
-- Shot
-- 
           The pluses in my current job include laughing in the face
           of Nobel laureates who have just lost the only copy of
           their data. (Hey, I'm still a BOFH.)       -- Bob Dowling
=================================================== http://shot.pl/wycinki/ ===

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Message #57 received at 283323@bugs.debian.org (full text, mbox, reply):

From: "Shot (Piotr Szotkowski)" <shot@hot.pl>

To: Marco d'Itri <md@Linux.IT>

Cc: 283323@bugs.debian.org

Subject: Re: umount segfaulting at shutdown

Date: Sat, 4 Dec 2004 22:35:54 +0100

[Message part 1 (text/plain, inline)]

Hello.

Marco d'Itri:

> I can't think of a workaround, but if this will not be fixed in time
> for sarge I will just disable the udev-mtab init script in the udev
> package.

Is there some easy way to have it disabled for the time being?
(Preferably in a layman-friendly words; I'm not quite sure what the
/etc/init.d/udev* scripts do and how to disable them to fix this.)

I'm using Debian on a laptop and thus shutdown the OS a couple of times
every day, so I'd like to avoid the possible filesystem corruption.

Cheers,
-- Shot
-- 
     To my embarrassment I was born in bed with a lady.   -- Wilson Mizner
================================================ http://shot.pl/hovercraft/ ===

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Message #62 received at 283323@bugs.debian.org (full text, mbox, reply):

From: md@Linux.IT (Marco d'Itri)

To: "Shot (Piotr Szotkowski)" <shot@hot.pl>

Cc: 283323@bugs.debian.org

Subject: Re: umount segfaulting at shutdown

Date: Sat, 4 Dec 2004 22:37:54 +0100

[Message part 1 (text/plain, inline)]

On Dec 04, "Shot (Piotr Szotkowski)" <shot@hot.pl> wrote:

> Is there some easy way to have it disabled for the time being?
Put "exit 0" as the second line of /etc/init.d/udev-mtab.

-- 
ciao, |
Marco | [9572 pes8re1vTwWiI]

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Message #67 received at 283323@bugs.debian.org (full text, mbox, reply):

From: md@Linux.IT (Marco d'Itri)

To: Adeodato Simó <asp16@alu.ua.es>, 283323@bugs.debian.org

Cc: control@bugs.debian.org

Subject: Re: Bug#283323: udev: causes /etc/rc0.d/S40umountfs to segfault

Date: Sun, 5 Dec 2004 02:11:46 +0100

[Message part 1 (text/plain, inline)]

tag 283323 fixed-upstream
thanks

I have been told that this bug has been fixed in 2.12j.

-- 
ciao, |
Marco | [9577 boEqGphckbDRU]

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Message #72 received at 283323-submitter@bugs.debian.org (full text, mbox, reply):

From: Thomas Hood <jdthood@aglu.demon.nl>

To: 283323-submitter@bugs.debian.org

Subject: Fixed in mount 2.12j

Date: Mon, 06 Dec 2004 12:45:58 +0100

The upstream changelog for mount 2.12j includes this line:

* umount: fix problem with empty mtab (Bryan Kadzban)

which appears to mean that #283323 has been fixed.

-- 
Thomas Hood

Message #83 received at 283323-done@bugs.debian.org (full text, mbox, reply):

From: md@Linux.IT (Marco d'Itri)

To: Adeodato Simó <asp16@alu.ua.es>, 283323-done@bugs.debian.org

Subject: Re: Bug#283323: udev: causes /etc/rc0.d/S40umountfs to segfault

Date: Thu, 9 Dec 2004 18:19:46 +0100

[Message part 1 (text/plain, inline)]

I confirm that this has been fixed in unstable.

-- 
ciao, |
Marco | [9671 riyHFqZfA.CKY]

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