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** Changed in: linux-2.6 (Debian)
Status: Unknown => Fix Released
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To
** Bug watch added: Debian Bug tracker #572153
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=572153
** Also affects: linux-2.6 (Debian) via
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=572153
Importance: Unknown
Status: Unknown
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(it seemed to be solved, but came back with an update...?)
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To manage notifi
the bug is still there in latest natty kernel 2.6.38-15-server x86_64...
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To
We still have this issue (as described in the duplicate at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/781792, i.e. with
autofs) in linux-image-2.6.38-13-generic-pae version 2.6.38-13.57 in
Natty:
# uname -a
Linux crux 2.6.38-13-generic-pae #57-Ubuntu SMP Mon Mar 5 20:00:10 UTC 2012
i686
we have this
ii linux-image-2.6.38-13-generic 2.6.38-13.57
and it still happens.
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Title:
Kernel Oops : Dentry still in
This bug was fixed in the package linux - 2.6.38-13.54
---
linux (2.6.38-13.54) natty-proposed; urgency=low
[Herton R. Krzesinski]
* Release Tracking Bug
- LP: #911195
[ Alex Bligh ]
* (config) Change Xen paravirt drivers to be built-in
- LP: #886521
[ Paolo Pisa
@herton,
Anything else needed to get this fix released for Natty?
--chris
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
T
will a fix be released for natty soon ???
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To manage notifications about thi
Setting verification-done-natty as per comment #43
** Tags removed: verification-needed-natty
** Tags added: verification-done-natty
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Title:
Kern
I can confirm that the problem seems to be solved with 2.6.38-13.54.
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To man
** Branch linked: lp:ubuntu/lucid-proposed/linux-lts-backport-natty
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To mana
This bug is awaiting verification that the kernel for Natty in -proposed
solves the problem (2.6.38-13.54). Please test the kernel and update
this bug with the results. If the problem is solved, change the tag
'verification-needed-natty' to 'verification-done-natty'.
If verification is not done by
confirmed also on debian wheezy/sid with a 3.1.0-1-amd64 kernel...
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To manag
** Changed in: linux (Ubuntu Natty)
Status: In Progress => Fix Committed
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Assignee: Chris J Arges (christopherarges)
Status: In Progress
** Changed in: linux (Ubuntu Precise)
Status: In Progress => Fix Relea
The attachment "patch cherry picked from
8aef18845266f5c05904c610088f2d1ed58f6be3" of this bug report has been
identified as being a patch. The ubuntu-reviewers team has been
subscribed to the bug report so that they can review the patch. In the
event that this is in fact not a patch you can reso
** Changed in: linux (Ubuntu Natty)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Chris J Arges (christopherarges)
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** Changed in: linux (Ubuntu Oneiric)
Status: Confirmed => Fix Committed
** Changed in: linux (Ubuntu Oneiric)
Status: Fix Committed => Fix Released
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This patch applies cleanly to ubuntu-natty, I can boot fine with this kernel.
This patch is already in ubuntu-oneiric.
** Changed in: linux (Ubuntu Natty)
Assignee: (unassigned) => Chris J Arges (christopherarges)
** Patch added: "patch cherry picked from
8aef18845266f5c05904c610088f2d1ed58
@molostoff
No idea how did you come up with this hack, but no matter: it works great here!
Server: lucid. Client: natty. No oops observed in what has been about a
week since switching SG off .
Thanks!
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On 13/10/11 16:31, John Johansen wrote:
> This bug should be fixed by upstream commit
> 8aef18845266f5c05904c610088f2d1ed58f6be3
>
> VFS: Fix vfsmount overput on simultaneous automount
>
> I have built a test kernel with the commit, its available at
>
> people.canonical.com/~jj/linux-image
This bug should be fixed by upstream commit
8aef18845266f5c05904c610088f2d1ed58f6be3
VFS: Fix vfsmount overput on simultaneous automount
I have built a test kernel with the commit, its available at
people.canonical.com/~jj/linux-image-2.6.38-12-generic_2.6.38-12.51~lp769927_amd64.deb
pe
** Also affects: linux via
https://bugzilla.redhat.com/show_bug.cgi?id=708039
Importance: Unknown
Status: Unknown
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Title:
Kernel Oops
Is there a patched kernel deb available anywhere or any plans to
include the patch in the Natty updates?
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Title:
Kernel Oops : Dentry still in u
** Tags added: natty
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To manage notifications about this bug go to:
https://
should be: "ethtool -K eth1 sg off" - in cli mode
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To manage notifications
I have found that scatter/gather NIC features on server can affect the
behavor described above - just disabled them on server:
# my primary iface is eth1.
# here below is a stanza in a server host "interfaces" config
# that requires ethtool be installed
# the same as "ethtool -K eth1 sg on"
auto e
At 2.6.38-11-server #48 still oops before every reboot (cant umount /
due too this issue)
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Title:
Kernel Oops : Dentry still in use (1) [unmount
Good news!
The kernel linux-image-2.6.38-11-generic_2.6.38-11.47~lp813748 seems to have
fixed the nfs unmount problem
in natty for me.
Thanks a lot
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With the Kernel 3.0.0 may system was running for 24 hours without NFS problems,
but I had problems with resolv.conf.
Now I will try linux-image-2.6.38-11-generic_2.6.38-11.47~lp813748
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h
there is a test kernel using the redhat patch sequence available at
people.canonical.com/~jj/linux-image-2.6.38-11-generic_2.6.38-11.47~lp813748_amd64.deb
people.canonical.com/~jj/linux-headers-2.6.38-11-generic_2.6.38-11.47~lp813748_amd64.deb
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the bug might also be in one of these reports
BUG: Dentry 880137e720c0{i=2d319,n=/} still in use (1) [unmount of autofs
autofs]:
https://bugzilla.redhat.com/show_bug.cgi?id=698806
dentry still in use on umount of autofs mounted nfs4 filesystem
https://bugzilla.redhat.com/show_bug.cgi?id=7080
i am seeing this crash after every timeout and umount in autofs. changed
my timeout from 60 to 3600 and i still see the problem
Linux box05 2.6.38-10-server #46~lucid1-Ubuntu SMP Wed Jul 6 20:19:32
UTC 2011 x86_64 GNU/Linux
installed
linux-image-server-lts-backport-natty 2.6.38.10.20
linux-i
I was already using kernel 2.6.38-11.47 and still had that problem.
Now I am trying 3.0.0-7.8
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Title:
Kernel Oops : Dentry still in use (1) [unm
** Changed in: linux (Ubuntu Natty)
Status: New => Confirmed
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
To mana
You could also give the Oneiric kernel a try from
https://launchpad.net/ubuntu/+source/linux/3.0.0-7.8
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Title:
Kernel Oops : Dentry still in use
There are a couple of stable commits in 2.6.38-11.47 that look
promising:
NFSv4.1: Fix the handling of NFS4ERR_SEQ_MISORDERED errors
NFSv4: Handle expired stateids when the lease is still valid
Either subscribe to -proposed or pull a kernel directly from
https://launchpad.net/ubuntu/+source/linux
I can confirm that the error is still present.
I have activated /net in /etc/auto.master and I have one server
which is exporting several filesystems.
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After some testing of the latest released Ubuntu kernel version
(2.6.38-10-server) I have to unfortunately report that the problem still
persists. Thus, the kernel still seems to Oops at the very same
location. See the attached dmesg output:
--- cut here ---
[662197.101766] BUG: Dentry 880052f
I just spotted a truckload of upstream NFS fixes that rolled in with the
2.6.38-10.46 kernel that just hit the repos. Surely ONE of these fixes
will resolve this issue.
Here's the NFS changes alone:
* nfsd4: fix struct file leak on delegation
- LP: #775809
* nfsd4: Fix filp leak
- LP:
I agree with the above comment. Why is the bug not assigned and has the
importance not been marked as 'critical' yet? NFS file sharing is a
basic function and should be treated with priority.
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Any progress on a bugfix for that one? It is really unbelieveable that
it hasn't been fixed in the meantime since this bug exists so long and
is so important for servers using NFS connections regularly. Here, we
are considering downgrading our kernels to the ones use in 11.04 as we
still get regula
@Joseph
here the /etc/auto.net file is also mostly unmodified and it doesn't
really matter which options I specify there (also tried the default
options). However, my current options are:
-- cut here --
opts="-fstype=nfs,vers=3,rsize=32768,wsize=32768,nolock,hard,intr,nodev,nosuid"
-- cut here --
@Jens
1) A server host config file /etc/default/nfs-common is the same as on
client
2) Server side mount point (in server /etc/fstab) which is shared via
/etc/exports is lvm2 volume with ext4:
/dev/myhost/downloads /var/lib/transmission-daemon
autodefaults,noatim
@Jens
/etc/default/nfs-common
Only option I have changed in this file is a line with
NEED_IDMAPD=yes
** Attachment added: "/etc/default/nfs-common"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/769927/+attachment/2180497/+files/nfs-common
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@Jens
A /etc/auto.net file is standard (came from ubuntu package)
** Attachment added: "/etc/auto.net"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/769927/+attachment/2180496/+files/auto.net
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@molostoff @Jens
Could you provide the contents of your /etc/auto.net file? I'm mostly
interested in what opts you have set.
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Title:
Kernel Oops
Here, the clients are all ubuntu/natty (7 servers with different
hardware) and the NFS server is a solaris10 server (SPARC) with all
regular and security updates installed.
autofs config on client:
-- cut here --
/net/etc/auto.net
-- cut here --
nfs server config on solaris10 (/etc/df
Both client and server are ubuntu/natty with all regular and security
updates installed.
autofs config on client (distro comments removed):
##
/net/etc/auto.net
+auto.master
##
nfs-kernel-server on server /etc/exports
##
/var/lib/transmission-daemon/downloads
*(ro,all_squash,anonuid=65534,
@Jens @Matt
I am trying to reproduce this issue, but I've been unsucessful so far.
I lowered the timeout in /etc/default/autofs to 30. I see the NFS mount
get unmounted without any issue. If I cd to the /net/HOSTNAME/share
directory, the mount is never unmounted.
Is it possible for either of yo
Yes, you are right. It also happens when trying to shutdown the machine.
So it seems to be essentially related to unmounting NFS volumes under
certain circumstances. Increasing the autofs unmount timeout simply
reduces the probability of seeing this problem during runtime of the
system.
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On Thursday 16 June 2011 09:11:01 Jens Langner wrote:
> All that matters is that the nfs mounts are mounted
> via autofs [...]
No, I don't use autofs. The crash happens on shutdown here.
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I can support that observation. It doesn't matter if you put heavy load
on the nfs mounts. All that matters is that the nfs mounts are mounted
via autofs and that you have a timeout to get the system automatically
unmounting the shares. That's where the crash happens actually. Here I
have in fact i
I see regularly this bug happen on my natty without nfs heavy load. In
my case autofs mounter tries to umount nfs share by timeout (usually 300
secs by default) and then this kernel stack dump printed. System becomes
unusable and unable to reboot, only hard reset can help.
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Is there a test case that can be used to easily reproduce this bug? Or
does it only require heavy I/O against the NFS mount?
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Title:
Kernel Oops
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
Kernel Oops : Dentry still in use (1) [unmount of nfs4 0:1d]
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[ 661.863116] BUG: Dentry f6bcb000{i=145066,n=} still in use (1) [unmount of
nfs4 0:1c]
[ 661.863138] [ cut here ]
[ 661.863173] kernel BUG at /build/buildd/linux-2.6.38/fs/dcache.c:947!
[ 661.863209] invalid opcode: [#1] SMP
[ 661.863238] last sysfs file:
/sys/
I just got this on my laptop:
[917043.074390] kernel BUG at /build/buildd/linux-2.6.38/fs/dcache.c:947!
[917043.074468] invalid opcode: [#1] SMP
[917043.074521] last sysfs file: /sys/devices/platform/dock.0/flags
[917043.074593] CPU 0
[917043.074618] Modules linked in: binfmt_misc vboxnetad
After having tried to switch all remote NFS share mounts to use NFS3
instead of NFS4 as I thought that might have been the reason for the
crash. However, now that two of our servers showed up with the exact
same problem again, I can report that this seems to even happen with
nfs3 shares. The traceb
Also happens under 2.6.38-9 from kernel-ppa/pre-proposed
Linux mourneblade.mossholder.com 2.6.38-9-generic
#43~pre201104230901-Ubuntu SMP Sat Apr 23 09:16:31 UTC 2011 x86_64
x86_64 x86_64 GNU/Linux
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** Attachment added: "Output of lspci -vnvn"
https://bugs.launchpad.net/bugs/769927/+attachment/2086548/+files/lspci.out
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Title:
Kernel Oops :
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