The 18 month support period for Gutsy Gibbon 7.10 has reached its end of life -
http://www.ubuntu.com/news/ubuntu-7.10-eol . As a result, we are closing the
linux-source-2.6.22 kernel task.
** Changed in: linux-source-2.6.22 (Ubuntu)
Status: Incomplete => Won't Fix
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Kernel Panic due to
Marking this Fix Released for Intrepid.
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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Kernel Panic due to null pointer dereference in do_add_mount()
https://bugs.launchpad.net/bugs/214810
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Bugs, whic
An update:
We are now using Intrepid's kernel-2.6.27-7-generic and -server, and
have stopped having the autofs4 issues seen above (at least so far).
For now, we are sticking with Hardy for LTS, but just upgrading to
Intrepid kernel images. FYI.
As for backporting, when I tried Colin's kernel, we
Hi,
Upgrading to Ubuntu 8.10 / Kernel 2.6.27-7-generic apparently solved the
problem for me: autofs never crashes again.
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Kernel Panic due to null pointer dereference in do_add_mount()
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The issue seems to go away (at least in 3 out of 3 attempts ;-) when
using Colin's 2.6.24-20.35 kernel (amd64/generic tested only). IOW,
works for me. Thanks!
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I ran into this problem this morning for the first time, but now it is reliably
reproducable on my work PC ;-|
For me the short-term solution to be able to work again is to disable the
automounter (and to live without NFS on this host for the time being).
Strangely, I was using Ubuntu 8.04 (rc t
Hi Chad,
Thanks for investigating this with 2.6.27. Any success with the kernels
I built in https://bugs.launchpad.net/ubuntu/+source/linux-
source-2.6.22/+bug/214810/comments/19 ?
Colin
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Kernel Panic due to null pointer dereference in do_add_mount()
https://bugs.launchpad.net/bugs/214810
You
I actually just today built the current Intrepid kernel with "prevu",
but have to wait a bit to reboot. In the meantime, for my colleague who
was experiencing this Oops 2-3 times a week, we compiled and installed
2.6.26.3, and now he hasn't had the problem occur again in over 4 weeks.
However, an
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the
upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would
appreciate it if you could please test this newer 2.6.27 Ubuntu kernel.
There are one of two ways you should be able to test:
1) If you are comfortable
Hi Chad,
Just to clarify, the original patch I built with was a fix that I saw a
discussion on from the Linux Kernel Mailing List Archive; subsequently a tidied
up version of the patch made it into the autofs git repo which I referred to in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2
Colin, sorry to bug you again, but can you tell me if this is the same
patch as you applied in your kernel binaries mentioned earlier in the
thread? I was running your kernel for a couple days and just had the
same Oops occur again. My next step is to take the existing ubuntu
kernel, apply just t
Chad,
A patch from the autofs git may be the one that does the trick, namely:
http://git.kernel.org/?p=linux/kernel/git/raven/linux-2.6-autofs4.git;a=commitdiff;h=b939c8bbeb9e49072aaf6a5faf688cb2b3e1c39f
Hope this helps
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Kernel Panic due to null pointer dereference in do_add_mount()
https:/
Thanks Colin,
You don't have the "server" versions of linux-ubuntu-modules, and
linux-restricted-modules, which we are using to access all our memory
(4G). I can try the generic kernel in the meantime. Can you publish
the actual patch you made (or at least email it to me while I test?)
Thanks!
Hi Chad,
As noted in comment in https://bugs.launchpad.net/ubuntu/+source/linux-
source-2.6.22/+bug/214810/comments/19 above I have built a load of debs
that can be tried out to see if the relevant patch fixes this problems.
If it can be tested then I can commit it to the kernel.
Thanks, Colin
-
We have been coming across this bug quite frequently since moving to
8.04. Happened again today on 8.04.1. My work colleague tracked down
the oops, and it is related to a bug in mainline:
http://www.kerneloops.org/search.php?search=graft_tree&btnG=Function+Search
He then found this discussion o
Le jeudi 3 juillet 2008 13:06, Colin King a écrit :
> For your convenience, I've also added the lrm and lum debs for generic
> i386 and amd64 builds.
>
> Colin
Thanks, I'll stress test it in 2 weeks.
Regards,
--
Farzad FARID / Architecte Open Source - Associé
Pragmatic Source / http://www.pragm
For your convenience, I've also added the lrm and lum debs for generic
i386 and amd64 builds.
Colin
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Hi,
Le Wednesday 02 July 2008 10:50:36 Colin King, vous avez écrit :
> Hi there,
>
> I believe I have a patch that may resolve this issue. I have built a
> collection of Hardy kernels to try this with first and if it's
> successful I shall backport it to Gutsy.
>
> Can you download the appropriate
Hi there,
I believe I have a patch that may resolve this issue. I have built a
collection of Hardy kernels to try this with first and if it's
successful I shall backport it to Gutsy.
Can you download the appropriate Hardy kernel deb from:
http://people.ubuntu.com/~cking/sru-214810/
and try it o
** Changed in: linux-source-2.6.22 (Ubuntu)
Assignee: (unassigned) => Colin King (colin-king)
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I kept hitting this bug so frequently that I had to disable the
automounter and resort to static mounts, which is also a pain in my
environment. Anybody know if this is ubuntu only ?
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Kernel Panic due to null pointer dereference in do_add_mount()
https://bugs.launchpad.net/bugs/214810
You rece
** Attachment added: "dmidecode output, Ubuntu 8.10 kernel 2.6.24-18-generic"
http://launchpadlibrarian.net/15112560/dmidecode.txt
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** Attachment added: "lsci output, Ubuntu 8.10 kernel 2.6.24-18-generic"
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Hi, This bug also occurs on Ubuntu 8.10. It's pretty serious for me,
because the crash now happens almost twice a day. Hi had the very same
bug with Ubuntu 8.06's kernel.
Linux karma 2.6.24-18-generic #1 SMP Wed May 28 20:27:26 UTC 2008 i686
GNU/Linux
I'm using autofs with a Thecus N2100 NFS file
I can reproduce it on a 7.10 system:
May 19 16:02:51 node15 kernel: [2059317.829560] PGD efe18067 PUD efe19067 PMD 0
May 19 16:02:51 node15 kernel: [2059317.922748] CPU 1
May 19 16:02:51 node15 kernel: [2059317.948928] Modules linked in: nfs lockd
sunrpc autofs4 ipv6 usbhid hid uhci_hcd ehci_hcd
I have something similar in /var/log/messages:
May 14 17:45:06 ulthar kernel: [78489.312979] PGD a1358067 PUD 61f22067 PMD 0
May 14 17:45:06 ulthar kernel: [78489.312984] CPU 1
May 14 17:45:06 ulthar kernel: [78489.312986] Modules linked in: af_packet
binfmt_misc rfcomm l2cap nfsd auth_rpcgss exp
Hit the bug, again, this time after upgrading to 8.04.
$ uname -a
Linux taswatha-devd 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686
GNU/Linux
FWIW, here's the backtrace:
[ 2827.690900] Pid: 12860, comm: mount.nfs Tainted: P(2.6.24-16-generic
#1)
[ 2827.690903] EIP: 0060:[
Hi Gareth,
It's not every time, but it is pretty much every session.
Regards,
Jonathan
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I haven't hit this bug again.
Ubuntu 7.10
$ uname -a
Linux taswatha-devd 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686
GNU/Linux
I am attaching all the other info in subsequent posts.
** Attachment added: "Syslog"
http://launchpadlibrarian.net/13832727/messages.1.gz
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Kerne
** Attachment added: "DMI encode"
http://launchpadlibrarian.net/13832733/dmidecode.txt.gz
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** Attachment added: "lspci"
http://launchpadlibrarian.net/13832731/lspci-vvnn.log.gz
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Jonathan & Tejasvi,
Does this issue occur always or just occasionally or just once only?.
Waiting on Tejasvi for Gutsy info.
Thanks.
** Also affects: linux-source-2.6.24 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Sourcepackagename: linux-source-2.6.24 => li
Ubuntu 8.04
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** Attachment added: "lspci-vvnn.log"
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** Attachment added: "dmidecode.txt"
http://launchpadlibrarian.net/13830193/dmidecode.txt
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I'm getting this Oops on 2.6.24-16 apparently when autofs is mounting
some nfs mounts.
Linux maternoty 2.6.24-16-386 #1 Thu Apr 10 12:50:06 UTC 2008 i686
GNU/Linux
[ 870.450520] BUG: unable to handle kernel NULL pointer dereference at virtual
address 0066
[ 870.450538] printing eip: c018c2
Thank you for taking the time to report this bug and helping to make
Ubuntu better. Can you supply more detailed information on the problem
you have reported (for example when does the problem occur: during boot
or does some other event trigger this? Does it always occur or just
occasionally or jus
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