** Changed in: linux (Ubuntu)
Status: In Progress = Fix Released
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Title:
regression: df: `/sys/kernel/debug': Function not implemented
3.2.0-87.125 was published to precise-updates/precise-security on
2015-07-06, I don't know why it didn't get autoclosed.
$ apt-cache policy linux-image-3.2.0-87-generic
$ apt-cache policy linux-image-3.2.0-87-generic
linux-image-3.2.0-87-generic:
Installed: 3.2.0-87.125
Candidate:
Periodic reminder that some folks (minimally myself) are looking forward
to the general availability of this fix with great anticipation. Lots of
third-party scripts depend on the exit status of df.
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RiCh, 3.2.0-87.125 has not been published to precise-updates/precise-
security yet, so it should not be marked Fix Released.
** Changed in: linux (Ubuntu Precise)
Status: Fix Released = Fix Committed
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** Changed in: linux (Ubuntu Precise)
Status: Fix Committed = Fix Released
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Title:
regression: df: `/sys/kernel/debug': Function not
Any word on release schedule?
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Title:
regression: df: `/sys/kernel/debug': Function not implemented with
3.2.0-85.122
To manage notifications
I tested 3.2.0-87-virtual from precise-proposed on AWS and it fixes the
df issue which we saw in our automated testing
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Title:
regression: df:
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
precise' to 'verification-done-precise'.
If verification is not done by 5 working days
Confirming 3.2.0-87-generic from precise-proposed fixes the issue for me
also. Thanks
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Title:
regression: df: `/sys/kernel/debug': Function not
mikelococo: this is a request for testing the Precise kernel that is
currently in -proposed (kernel version 3.2.0-87.125). This kernel
version should contain the fix for this bug, and I am asking the
original bug reporter (or anyone else affected by this bug) to verify
that it is indeed fixed.
Luis: The meaning of your last comment isn't clear to me (probably
because I'm insufficiently familiar with the standard process between
fix-committed and fix-released).
Are you calling for community testers to validate this bug in order to
prevent the fix from being thrown away 5 days from now?
I'm not the original reporter, but I am affected and the fix looks good
to me. Details below (forgive any typos or abbreviations, copy/paste not
setup for my test-vm)...
### First boot
$ uname -r
3.2.0-86-generic
$uname -v
#124-Ubuntu SMP Wed Jun 17 ... snip build time ...
$ df
df:
verification-done-precise tag added
verification-needed-precise tag removed
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Title:
regression: df: `/sys/kernel/debug': Function not
The kernel in precise-proposed fixes this for me.
$ cat /proc/version_signature
Ubuntu 3.2.0-87.125-generic 3.2.69
$ df | head -3
Filesystem 1K-blocksUsed Available Use% Mounted on
/dev/vda17481832 5146416 1955360 73% /
udev 371920 4371916 1% /dev
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Agesp: In response to your question about whether or not this impacts
other software, I can tell you that it affects our Ruby on Rails app in
production. I'm not sure what is triggering it -- it may be IRB, rails,
or a gem that we have, but there is a constant stream of these messages
on stderr
After upgrading 12.04 machines to
linux-image-3.2.0-86-generic3.2.0-86.124
from
linux-image-3.2.0-86-generic3.2.0-86.123
.. I still continue to get the same 'function not implemented',
including after reboot.
For 12.04 machines running the Trusty HWE kernel 3.13.0-55-generic
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Precise)
Status: New = Fix Committed
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I built two more test kernels. One has commit df438af reverted and the
other has df438af reverted. Can you test each of these kernels and see
which one resolves the bug? The kernels can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1465322/df438af-reverted
and
I can confirm that reverting df438afe2d93 (debugfs: leave freeing a
symlink body until inode eviction) fixes the issue on an i386 VM. But
it would be great to have the original bug reporter to test that too.
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Here's some more detail:
running 'strace df' shows the following:
statfs64(/sys/kernel/debug, 84, 0xbfddc6bc) = -1 ENOSYS (Function
not implemented)
A quick test shows that adding '.statfs = simple_statfs' in the
debugfs_super_operations struct fixes the problem, but I'm not sure
that's the
Reverting df438af seems to have fixed it.
$ cat /proc/version_signature
Ubuntu 3.2.0-86.123~lp1465322Commitdf438afReverted-generic 3.2.69
$ df | head -3
Filesystem 1K-blocksUsed Available Use% Mounted on
/dev/vda17481832 4735296 2366480 67% /
udev 371924 4
Please note, does this bug affect any other software but just df command?
(definitely kernel related, after update from 3.2.0-84 to 3.2.0-86)
My setup is also affected by this bug:
$ df -h
df: ”/sys/kernel/debug”: Funktion toteutus puuttuu
Tiedostojärjestelmä Koko Käyt Vapaa Käy% Liitospiste
Hi Joseph,
thanks for taking care. Looks like this bug might be related:
https://bugs.launchpad.net/ubuntu/+source/coreutils/+bug/1465180
We have here tivoli-storage-manager-client (tsm) which reports error
since upgrade: ANS0361I DIAG: TransErrno: Unexpected error from
GetFSInfo:statfs, errno =
** Tags added: performing-bisect
** Changed in: linux (Ubuntu)
Importance: Undecided = High
** Changed in: linux (Ubuntu)
Status: Confirmed = In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Joseph Salisbury (jsalisbury)
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This bug may be due to one of these commits:
7b0f287 kdb: fix incorrect counts in KDB summary command output
df438af debugfs: leave freeing a symlink body until inode eviction
I'll build a test kernel with these two commits reverted before starting
the bisect process. I'll post a link to the
Marking as confirmed since I was able to reproduce on two different
systems.
** Description changed:
- $ cat /proc/version_signature
+ $ cat /proc/version_signature
Ubuntu 3.2.0-84.121-generic 3.2.68
$ df | head -3
- Filesystem 1K-blocks Used Available Use% Mounted on
-
Great, thanks, Jamie. I'll reproduce the bug and figure out which of
these commits is the cause.
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Title:
regression: df: `/sys/kernel/debug':
I built a Precise test kernel with a revert of 7b0f287 and df438af. Can
you test this kernel and see if it still exhibits the bug?
It can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1465322/
** Tags added: precise regression-update
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This works as advertised in an amd64 VM.
$ cat /proc/version_signature
Ubuntu 3.2.0-85.122~lp1465322-generic 3.2.69
$ df | head -3
Filesystem 1K-blocksUsed Available Use% Mounted on
/dev/vda17481832 4264172 2837604 61% /
udev 371924 4371920 1% /dev
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