lubuntu-qa team mailing list archive

[Nio Wiklund <nio.wiklund@xxxxxxxxx>]

On 2013-09-25 19:01, keith@xxxxxxxxxxxxxxx wrote:
> I attempted an install from the 20130924 Live ISO via a usb flash drive.
> I selected the automatic resize option. The hard drive is 120GB and
> already has a fully updated 13.10 installation on it. The resizing went
> normally and the installation began.
> 
> The system froze at the slide showing the video features. I had to leave
> the room after starting the installation, so I'm not sure how far along
> that slide is, but the progress bar had hardly advanced.
> 
> The mouse and keyboard were frozen, as was the little progress wheel on
> the screen. I had to do a hard reset by holding the power button in for
> 5 seconds.
> 
> I rebooted into my previously installed 13.10 system (now occupying half
> the hard drive space) and verified the hard drive was partitioned for
> the new installation. My previous installation seems to be unaffected.
> 
> Regards,
> 
> Keith Rogers
> 
> 

Hi Keith,

I'm not sure, but I guess that zRAM is used also for PPC. If so, try to
perform the installation after you have switched off zRAM according to
the following mail.

sudo swapoff /dev/zram0
sudo swapoff /dev/zram1
...
sudo rmmod zram
-----------------------------------
Check with

swapon -s

that there is no active zram device.

Best regards
Nio

-------- Original Message --------
Subject: Re: AW: [Lubuntu-qa] Lubuntu 13.10 beta
Date: Wed, 18 Sep 2013 16:40:53 +0200
From: Leszek Lesner <leszek.lesner@xxxxxx>
To: Phill Whiteside <PhillW@xxxxxxxxxx>
CC: Nio Wiklund <nio.wiklund@xxxxxxxxx>, Julien Lavergne
<gilir@xxxxxxxxxx>, Lars Noodén <lars.nooden@xxxxxxxxx>, "Ali Linx
(amjjawad)" <amjjawad@xxxxxxxxx>, Nik Th <nikth@xxxxxxx>, Kjetil
brinchmann Halvorsen <kjetil1001@xxxxxxxxx>,
"lubuntu-qa@xxxxxxxxxxxxxxxxxxx" <lubuntu-qa@xxxxxxxxxxxxxxxxxxx>

Am Mittwoch, 18. September 2013, 15:37:37 schrieb Phill Whiteside:
> Thanks,
>
> I've just come accross
>
http://ubuntuforums.org/showthread.php?t=2162655&p=12735571#post12735571and
>
> sudo parted -l
>
>
> also gives me
>
> Error: /dev/zram0: unrecognised disk label
>
> Error: /dev/zram1: unrecognised disk label
>
> So, it is increasingly looking like zram is the culprit (or rather the
fact
> it is the 'not working' version).
>
>
>
> It's way out of my depth now! But, from reading the ubuntu forums post, it
> may also explain these random lock ups that (some of us) have been seeing.
>

You can test it on your own by deactivating zram
sudo swapoff /dev/zram0
sudo swapoff /dev/zram1
sudo rmmod zram
and see if it freezes again.

With zram enabled it should only freeze when really writing to those zram
swapdevices otherwise no freeze should appear.