As requested, the other issue has been reported at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1235525 this is for
saucy. For reporting in raring, please raise a new bug report and
mention the 1235525 bug so the kernel team can look into what the issue
is.
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Hi Nio,
I just popped desktop amd64 onto my VM, no hang and..
swapon -s reports zram as being in use.
Happy days!
Phill.
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Title:
It might be fixed. The bug 1225429, hanging at the end of the
installation, seems to have been cured and after more than a day of
operation, no freezes so far.
Linux lubuntu 3.11.0-9-generic #16-Ubuntu SMP Fri Sep 27 15:08:11 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
Phill, you had a way of
Linux saucy-desktop 3.11.0-9-generic #16-Ubuntu SMP Fri Sep 27 15:08:11
UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Posting this from Saucy Daily Build (01-10-2013) amd64 Fresh Install and
I can confirm the isntallation is done successfully from the frist try
and after installation, everything is
On 2013-10-01 18:02, Phill Whiteside wrote:
Hi Nio,
I just popped desktop amd64 onto my VM, no hang and..
swapon -s reports zram as being in use.
Happy days!
Phill.
Great news :-)
Nio
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3.11.0-9.16 is now in -release.
** Changed in: linux (Ubuntu Saucy)
Status: Fix Committed = Fix Released
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Title:
Unexpected
The commit that resolves this bug has been queued up for the 3.11.2
upstream release. The fix can be found in
~/stable-queue/releases/3.11.2/zram-don-t-grab-mutex-in-
zram_slot_free_noity.patch
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I sent a request to have this patch included in Saucy, until Saucy is
rebased to upstream 3.11.2.
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Title:
Unexpected freezes Saucy
Joe, it may be worth looking at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1215379 to see if
we would be going that route (all far too technical for me !).
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This patch came in with 3.11.2 and has been uploaded as part of linux
3.11.0-9.16.
** Changed in: linux (Ubuntu Saucy)
Status: In Progress = Fix Committed
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Hi Joseph,
Testing the ISO file of post #22:
When zram is running in Lubuntu I can see zram block devices with
swapon -s
but I can see no such devices running from this ISO file.
- Is zram running although I see no zram block devices?
- How can I activate zRAM or check that it is really
** Also affects: linux (Ubuntu Saucy)
Importance: High
Assignee: Joseph Salisbury (jsalisbury)
Status: In Progress
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I can try it.
I understand the sudo commands, but how to apply 'CONFIG_ZRAM=m'? Is it
a boot option? Or should it be entered in a config file somewhere?
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Hi Nio,
with the new kernel, zram is turned off. It not only causes the fail
after install, is suspected of random freezes that we've seen but also
http://ubuntuforums.org/showthread.php?t=2162655page=3 It's a shame
they didn't file a bug back then as we'd have had much more time to
investigate
The ISO is the standard Ubuntu Saucy ISO with a patched kernel, that has commit
a0c516c applied. ZRAM is configured as a module in Saucy:
CONFIG_ZRAM=m
I'm not exactly sure how lubuntu enables ZRAM during installation time?
Do you have a way to enable ZRAM like mentioned in comment #10? Maybe
i *think* lubuntu uses a slightly different setting for configuring up
zram in our desktop images. This was turned on only for lubuntu-desktop
as far as I'm aware (e.g. does not apply to alternate).
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On Lubuntu, we just use zram-config package to enable zram, which use an
upstart job to start it.
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Title:
Unexpected freezes Saucy
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Title:
Unexpected freezes Saucy
Status in “linux” package in Ubuntu:
In Progress
Status in “linux” source package in Saucy:
In
Yes, Julien. That is the patch that I cherry-picked into the test
kernel.
That commit was Cc'd to stable, so it will make it's way into the 3.11
and other stable kernels through the normal stable update process.
I can submit an SRU request to have this commit cherry-picked into Saucy
while we
For what it's worth, I haven't encountered a hard freeze using zram with
both the 3.12-rc1 and rc2 kernels. Using the 3.11.x kernels from the
official repository, I am able to trigger a system lockup very easily
(e.g. running several Eclipse instances, or compiling a large project,
etc.)
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I have tested the Lubuntu Saucy beta2 ISO files now, live, installing
and installed. It is easy to provoke a crash using the kernels (i386 and
amd64), that come with the ISO files.
I installed the kernel in post #6 into this beta2 amd64 version, and it
has *not* crashed for me. But I have had no
I created a test ISO that includes a test kernel built with a cherry-
pick of commit a0c516c. The test ISO can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1227202/ubuntu-13.10-desktop-
amd64-lp1227202.iso
Can folks test this ISO and post back if it resolves the bug?
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I'm grabbing now, but a full ISO takes a while on my 'narrow' band.
could you post up the md5sum of the ISO so we know we have a non-
corrupted version. as regards to the other issue(s), these are reported
by amd-mac / 32 bit /ppc etc. which do not have access to the cherry-
picked kernel fix as
Joseph,
I downloaded the ISO file of post #22. Please confirm or correct the
following size and md5sum!
wc -c ubuntu-13.10-desktop-amd64-lp1227202.iso
1049980928 ubuntu-13.10-desktop-amd64-lp1227202.iso
md5sum ubuntu-13.10-desktop-amd64-lp1227202.iso
e939fec65cd6d9a01689b22468f2300a
Nio,
I've just pulled it into my dedi-server...
Length: 1049980928 (1001M) [application/x-iso9660-image]
appears to match your file length and md5sum gives
e939fec65cd6d9a01689b22468f2300a ubuntu-13.10-desktop-amd64-lp1227202.iso
That's as close as I can get to confirm things.
Regards,
I have Ubuntu running in KVM. The live desktop is OK with a VGA screen.
But ...
1. Ubiquity starts but only in the background. There is no window. How
can I test installing?
2. There is no zram. When I try to install zram-config, apt-get
complains: Failed to fetch
Nio,
I still have 90 mins to go for my local download to be completed. As you
have seen, I've asked on lubuntu-qa mail listing to see if there are
others who can get a test done more quickly. If I use QEMU to fire up a
KVM on my dedi server, it will slow down the down-load to my local
machine
Will it work for us at all to test installing with zram using this
Ubuntu ISO file, or must we to get a Lubuntu ISO file?
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Title:
Ubuntu ISO is 1GB+ in size (hence it taking so long for me to download
it). Lubuntu ISO's are CD sized at ~700MB :) Beggars can't be choosers!
512MB is the absolute minimum for Ubuntu (from in 13.04 release), I've
not tried a Ubuntu 13.10 ISO this testing cycle so far.
Phill.
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The 'install Ubuntu' menu item works, and I can start text screens with
ctrl+alt+F2 ... , but still, I cannot activate zram.
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Title:
On 2013-09-26 00:45, Phill Whiteside wrote:
Hi Joe,
install went okay, (slow, but to be accepted with 512MB RAM and Ubuntu).
Reboot did not freeze and the system rebooted fine. Uses a heck of a lot
of swap (again to be expected). So, the major bug is now resolved. We
can now look at other
It was decided that Saucy would be based on the 3.11 kernel, so I think
it's too far along in the release for that to change.
Did my test kernel in comment #6 also resolve this bug, or just the
v3.12-rc1 kernel?
Also, per your email, are you not seeing the bug in the 3.11.0-8.15
kernel anymore?
The kernel in #6 has not crashed for me (and I have tested it for
several days), but if I understand correctly, it has crashed for another
tester, Lars Noodén. Please ask him directly to determine if that is
correct.
I cannot determine, which bug is causing which crash, unless guided by
you or
Joseph,
Did your kernel modified include just this patch :
https://lkml.org/lkml/2013/8/12/29 ? If yes, as it only touch zram, and
as Lubuntu is the only flavor using it by default, is it possible to
cheery-pick it for the next kernel update ? I don't think it will be
worse with it included
It sounds like the test kernel I created did not fix this issue, per
comment #8. This test kernel was built with a cherry-pick of commit
a0c516c. Lars, did you test this by creating an iso with my test
kernel, or did you just reboot into the test kernel, and you can still
reproduce the bug that
hi Joe,
I downloaded http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.12-rc1-saucy/linux-
headers-3.12.0-031200rc1-generic_3.12.0-031200rc1.201309161735_amd64.deb
and then did
sudo dpkg -i linux-
image-3.12.0-031200rc1-generic_3.12.0-031200rc1.201309161735_amd64.deb
Here goes a reboot
Joe,
the new kernel does not have the error as reported on
http://ubuntuforums.org/showthread.php?t=2162655p=12735571#post12735571
I think, there for that the zram team have been true to their word of
having it fixed. This close to kernel freeze, apart from zero, what are
the chances of bumping
Joe,
there is also http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.12-rc2-saucy/
I've not pulled that one in, as you requested rc1. I'm happy to pull
that one in if requested.
Phill.
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I did try this kernel the other day and the system did lock up just like
the one in the repository:
linux-image-3.11.0-7-generic_3.11.0-7.14~lp1227202v1_amd64.deb
The system still locks up even with the latest kernel from the
repository --
Linux lubuntu 3.11.0-7-generic #14-Ubuntu SMP Mon Sep
I'm beginning the thought that
http://ubuntuforums.org/showthread.php?t=2162655p=12735571#post12735571
actually holds the key to this issue. They may well be 2 separate bugs,
but they both head towards zram. It seems very broken.
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I'm rather convinced it is the zRAM bug, that Leszek Lesner described
earlier today. I reported success with 768 MB RAM, and now I have
succeeded also with 512 MB RAM to install from saucy-desktop-i386.iso
without any freeze, when zRAM was switched off. This is half of the RAM
necessary to succeed
Commit a0c516cbfc was cc'd to sta...@vger.kernel.org, so it will
eventually make it into the Ubuntu kernel through the normal stable
update process.
However, we should be able to cherry-pick this commit into Saucy until
it trickles down from stable. I'll build a test kernel with this commit
and
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Joseph Salisbury (jsalisbury)
** Changed in: linux (Ubuntu)
Status: Confirmed = In Progress
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** Changed in: linux (Ubuntu)
Importance: Undecided = High
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Title:
Unexpected freezes Saucy
Status in “linux” package in
This bug has been reported on the Ubuntu ISO testing tracker.
A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1227202
** Tags added: iso-testing
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The kernel boots and system does not crash when asked to use swap. An
ISO needs to be generated to check that this does fix the issue with the
installer system. (This is just an update from email and IRC
conversations for people following the bug).
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