Ubuntu 17.10 (Artful Aardvark) has reached end of life, so this bug will
not be fixed for that specific release.
** Changed in: tar (Ubuntu Artful)
Status: New => Won't Fix
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This bug was fixed in the package linux - 4.13.0-39.44
---
linux (4.13.0-39.44) artful; urgency=medium
* linux: 4.13.0-39.44 -proposed tracker (LP: #1761456)
* intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux-
image-4.13.0-37-generic) (LP: #1759920) // CVE-
Verified artful-proposed.
root@ubuntu:~# cat /etc/cloud/build.info
build_name: server
serial: 20180404
root@ubuntu:~# uname -a
Linux ubuntu 4.13.0-38-generic #43-Ubuntu SMP Wed Mar 14 15:20:44 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
root@ubuntu:~# mount /dev/sda /mnt
root@ubuntu:~# grep sda /pr
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-
artful' to 'verification-done-artful'. If the problem still exists,
change the tag 'verifica
** Changed in: linux (Ubuntu Artful)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1757565
Title:
btrfs and tar sparse truncate ar
** Merge proposal linked:
https://code.launchpad.net/~raharper/curtin/+git/curtin/+merge/342393
** Merge proposal linked:
https://code.launchpad.net/~raharper/curtin/+git/curtin/+merge/342394
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Joseph,
Thanks for providing the link to the mailing list post. That is very
helpful.
On Fri, Mar 23, 2018 at 4:15 PM, Joseph Salisbury <
joseph.salisb...@canonical.com> wrote:
> SRU request submitted:
> https://lists.ubuntu.com/archives/kernel-team/2018-March/090976.html
>
> --
> You received
SRU request submitted:
https://lists.ubuntu.com/archives/kernel-team/2018-March/090976.html
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https://bugs.launchpad.net/bugs/1757565
Title:
btrfs and tar sparse
** Description changed:
+
+ == SRU Justification ==
+ This bug causes btrfs and tar sparse to truncate archives. This bug has been
+ fixed in v4.15-rc3 by commit e3b8a4858566, which has a prereq commit of
f48bf66b662e.
+
+ These commits were cc'd to upstream stable and are already in Bionic.
That's great news. I'll SRU those two commits to the Artful kernel.
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Title:
btrfs and tar sparse truncate archives
Stat
Test kernel: GOOD
root@ubuntu:~# cat /proc/version_signature
Ubuntu 4.13.0-37.42~lp1757565-generic 4.13.13
root@ubuntu:~# mount /dev/sda /mnt
root@ubuntu:~# grep sda /proc/mounts
/dev/sda /mnt btrfs rw,relatime,space_cache,subvolid=5,subvol=/ 0 0
root@ubuntu:~# SPARSE="-S"; rm -rf /mnt/tmp; md5s
I built an Artful test kernel with commit e3b8a48. It also needed
commit f48bf66b6 as a prereq.
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1757565
Can you test this kernel and see if it resolves this bug?
Note, to test this kernel, you need to install both th
Yeah, rc2 was fine.
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Title:
btrfs and tar sparse truncate archives
Status in linux package in Ubuntu:
Triaged
Status i
** Merge proposal linked:
https://code.launchpad.net/~raharper/curtin/+git/curtin/+merge/341982
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Title:
btrfs and tar
It looks like that commit landed in -rc3:
git describe --contains e3b8a48
v4.15-rc3~3^2~11
However, -rc2 is good, correct? I'll have a look at the other btrfs
commits in -rc2 and see if any stick out.
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Hmm, even though git describe returns that tag, it seem s-rc2 has that
commit.
I'll still build an Artful test kernel with that commit to see if it
fixes the bug and figure out the tagging in the background.
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Thanks for doing all the leg work. I'll build a test kernel with that
commit and post it shortly.
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Title:
btrfs and tar
This looks promising and landed in -rc2:
Btrfs: fix reported number of inode blocks after buffered append writes
https://www.spinics.net/lists/linux-btrfs/msg71274.html
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v4.15-rc6: GOOD
root@ubuntu:~# uname -r
4.15.0-041500rc6-generic
root@ubuntu:~# mount /dev/sda /mnt
root@ubuntu:~# grep sda /proc/mounts
/dev/sda /mnt btrfs rw,relatime,space_cache,subvolid=5,subvol=/ 0 0
root@ubuntu:~# SPARSE="-S"; rm -rf /mnt/tmp; md5sum /usr/bin/python3.6; mkdir
-p /mnt/tmp;
That would indicate the fix is in from v4.15-rc2 -> 4.15 Final. I'll
review the commits in that range, but there are probably thousands of
them. It will help to narrow it down further. Could you test the 4.15
release candidates on the following page to find the last good kernel
and first bad ker
v4.15 Final: GOOD
root@ubuntu:~# uname -r
4.15.0-041500-generic
root@ubuntu:~# mount /dev/sda /mnt
root@ubuntu:~# grep sda /proc/mounts
/dev/sda /mnt btrfs rw,relatime,space_cache,subvolid=5,subvol=/ 0 0
root@ubuntu:~# SPARSE="-S"; rm -rf /mnt/tmp; md5sum /usr/bin/python3.6; mkdir
-p /mnt/tmp;
@Scott, will that upstream commit make it so the kernel fix we are
looking for is not required?
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Title:
btrfs and tar spa
On Thu, Mar 22, 2018 at 2:56 PM, Joseph Salisbury
wrote:
> @Scott, will that upstream commit make it so the kernel fix we are
> looking for is not required?
This is a curtin workaround; we're not using the sparse flag when invoking tar;
However, the bug/issue remains between tar and btrfs.
Outsi
Thanks for the info, Ryan.
We know that 4.15-rc1 is BAD and 4.15.7 is GOOD, so the fix came in some
where in between.
Can you next test v4.15 Final:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/
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v4.15.7: GOOD
root@ubuntu:~# uname -r
4.15.7-041507-generic
root@ubuntu:~# mount /dev/sda /mnt
root@ubuntu:~# grep sda /proc/mounts
/dev/sda /mnt btrfs rw,relatime,space_cache,subvolid=5,subvol=/ 0 0
root@ubuntu:~# SPARSE="-S"; rm -rf /mnt/tmp; md5sum /usr/bin/python3.6; mkdir
-p /mnt/tmp; cp -
The Bionic 4.15.0-12 kernel is based off of upstream 4.15.7. Can you
test that kernel as well? That will tell us if the fix in Bionic is an
Ubuntu SAUCE patch or a 4.15 stable update.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15.7/
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An upstream commit landed for this bug.
To view that commit see the following URL:
https://git.launchpad.net/curtin/commit/?id=bd40234f
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v4.14-rc1: BAD
ubuntu@ubuntu:~$ uname -r
4.14.0-041400rc1-generic
ubuntu@ubuntu:~$ sudo bash
root@ubuntu:~# mount /dev/sda /mnt
root@ubuntu:~# grep sda /proc/mounts
/dev/sda /mnt btrfs rw,relatime,space_cache,subvolid=5,subvol=/ 0 0
root@ubuntu:~# SPARSE="-S"; rm -rf /mnt/tmp; md5sum /usr/bin/
I'd like to perform a "Reverse" bisect to figure out what commit fixes
this bug. We need to identify the last kernel version that had the bug,
and the first kernel version that fixed the bug.
Can you test the following kernels and report back:
v4.14-rc1: http://kernel.ubuntu.com/~kernel-ppa/main
** Merge proposal linked:
https://code.launchpad.net/~raharper/curtin/+git/curtin/+merge/341780
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Title:
btrfs and tar
** Also affects: tar (Ubuntu)
Importance: Undecided
Status: New
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Title:
btrfs and tar sparse truncate archives
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