lubuntu-qa team mailing list archive

[Nio Wiklund <nio.wiklund@xxxxxxxxx>]

Hi,

I ran the saucy-desktop-i386.iso installer in the Toshiba with 768 MB
RAM, 512 MB less than what was necessary earlier today. But I ran it
without zRAM, and there was no freeze :-)

So that convinces me, that it is the zRAM problem described by Leszek.
I will do some more tests, but if I don't report anything more today, I
stay with this conclusion.

Best regards
Nio

On 2013-09-18 16:55, Phill Whiteside wrote:
> Hi,
> 
> as my system locks up may be once every three days It would take quite
> some time to show stability. However I may give this a try...
> http://ubuntuforums.org/showthread.php?t=2162655&p=12735421#post12735421
> 
> I figured out a way to crash 3.11-rc1 every time, on this machine --
> goto ->FB and play a Zynga flash game in Firefox. BooM! Repeatable
> time-after-after. LoL!
> 
> And see if it still will crash on demand, something we have been looking
> for to further investigate!
> 
> Regards,
> 
> Phill.
> 
> 
> On 18 September 2013 15:40, Leszek Lesner <leszek.lesner@xxxxxx
> <mailto:leszek.lesner@xxxxxx>> wrote:
> 
>     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.
> 
>     >
>     > On 18 September 2013 15:30, Leszek Lesner <leszek.lesner@xxxxxx
>     <mailto:leszek.lesner@xxxxxx>> wrote:
>     > > Am Mittwoch, 18. September 2013, 15:22:33 schrieb Phill Whiteside:
>     > > > Hi Leszek,
>     > > >
>     > > > do you have the upstream bug report from zram about this?
>     Julien should
>     > >
>     > > be
>     > >
>     > > > successful in getting it into the ubuntu kernel if there is a
>     bug and a
>     > >
>     > > fix.
>     > >
>     > >
>     > > I only found those linux kernel mailing list entry which lead me
>     to the
>     > > fixes
>     > > in 3.12rc1
>     > > https://lkml.org/lkml/2013/8/19/17
>     > > https://lkml.org/lkml/2013/8/12/29
>     > >
>     > > > On 18 September 2013 15:14, Nio Wiklund <nio.wiklund@xxxxxxxxx
>     <mailto:nio.wiklund@xxxxxxxxx>> wrote:
>     > > > > Hi!
>     > > > >
>     > > > > I think this information from Leszek is the key to solve the
>     freezing
>     > > > > problems.
>     > > > >
>     > > > > Best regards
>     > > > > Nio
>     > > > >
>     > > > >
>     > > > > -------- Original Message --------
>     > > > > Subject:        AW: [Lubuntu-qa] Lubuntu 13.10 beta
>     > > > > Date:   Wed, 18 Sep 2013 15:51:36 +0200
>     > > > > From:   Leszek Lesner <leszek.lesner@xxxxxx
>     <mailto:leszek.lesner@xxxxxx>>
>     > > > > To:     Nio Wiklund <nio.wiklund@xxxxxxxxx
>     <mailto:nio.wiklund@xxxxxxxxx>>
>     > > > >
>     > > > >
>     > > > >
>     > > > > As for freezing we discovered that since kernel 3.10.6 zram
>     is broken
>     > > > > which causes freezes and was fixed only completely in
>     3.12rc1. We
>     > > > > backported that fixes in Neptune's Kernel I am not sure if
>     the ubuntu
>     > > > > kernel devs did the same.
>     > > > >
>     > > > > *Von: *Nio Wiklund
>     > > > > *Gesendet: *Mittwoch, 18. September 2013 15:39
>     > > > > *An: *Ali Linx (amjjawad)
>     > > > > *Cc: *Lubuntu QA; Nik Th; Julien Lavergne
>     > > > > *Betreff: *Re: [Lubuntu-qa] Lubuntu 13.10 beta
>     > > > >
>     > > > >
>     > > > > Now we know that it freezes on your hardware too, Ali,
>     > > > >
>     > > > > The hotkey for print screen is gone, but I think you can
>     print screen
>     > > > > with the terminal window command
>     > > > >
>     > > > > scrot
>     > > > >
>     > > > > Best regards
>     > > > > Nio
>     > > > >
>     > > > > On 2013-09-18 15:08, Ali Linx (amjjawad) wrote:
>     > > > > > On Wed, Sep 18, 2013 at 4:20 PM, Ali Linx (amjjawad) <
>     > >
>     > > amjjawad@xxxxxxxxx <mailto:amjjawad@xxxxxxxxx>
>     > >
>     > > > > > <mailto:amjjawad@xxxxxxxxx <mailto:amjjawad@xxxxxxxxx>>>
>     wrote:
>     > > > > >
>     > > > > >
>     > > > > > Ops O_o
>     > > > > >
>     > > > > > This is really bad!
>     > > > > >
>     > > > > > * Machine: http://phillw.net/hardware/BnA9pw11
>     > > > > > * I shared 128MB from 512MB RAM for the Graphics (I can
>     drop my
>     > > > > > RAM to half and leave only 256MB for the system from BIOS)
>     > > > > > * I booted my machine from the LiveUSB - latest daily build
>     > > > > > (17-09-amd64) created by UNetbootin final version
>     > > > > > * Checked for Errors = passed
>     > > > > > * While on Desktop, I noticed that Print Screen does NOT
>     work!!!!!!!
>     > > > > > * Yes, I chose Try Lubuntu without installation
>     > > > > > * Chose "Something Else"
>     > > > > > * While on the partition screen, once I finished and clicked
>     > > > > > "Continue" O_o ... the system crashed and kicked me out to the
>     > > > > > Login Screen (LightDM) with Other as username!!!!
>     > > > > > * There are two systems installed on this machine and
>     there is 1GB
>     > > > > > RAM SWAP (I turned it off before installation) but usually, on
>     > > > > > the partitioning screen, it should be on.
>     > > > > > * I was trying to install Lubuntu on /dev/sda4
>     > > > > >
>     > > > > > I will repeat one more time with Maximum possible RAM and
>     see but
>     > > > > > this is weird. Never had this, at least with Saucy!
>     > > > > >
>     > > > > >
>     > > > > > --
>     > > > > > Remember: "All of us are smarter than any one of us."
>     > > > > > Best Regards,
>     > > > > > amjjawad <https://wiki.ubuntu.com/amjjawad>
>     > > > > > Areas of Involvement
>     > > > > > <https://wiki.ubuntu.com/amjjawad/AreasOfInvolvement>
>     > > > > > My Projects <https://wiki.ubuntu.com/amjjawad/Projects>
>     > > > > >
>     > > > > >
>     > > > > > Do we have to file a bug against Ubiquity?
>     > > > > >
>     > > > > > I reduced the shared Graphics memory to 32MB (512-32) and
>     I did not
>     > > > > > touched SWAP Partition (1GB). Installation done
>     successfully except
>     > >
>     > > it
>     > >
>     > > > > > is frozen on the last step:
>     > > > > >
>     > > > > > Continue Testing Restart Now
>     > > > > >
>     > > > > > I clicked on Restart Now and the mouse is giving me the circle
>     > > > > > cursor
>     > > > > > (thinking) and the whole machine is frozen!!!!!
>     > > > > >
>     > > > > > And, before it freezes, Print Screen still does not work!
>     > > > > >
>     > > > > > --
>     > > > > > Remember: "All of us are smarter than any one of us."
>     > > > > > Best Regards,
>     > > > > > amjjawad <https://wiki.ubuntu.com/amjjawad>
>     > > > > > Areas of Involvement <
>     > > > >
>     > > > > https://wiki.ubuntu.com/amjjawad/AreasOfInvolvement>
>     > > > >
>     > > > > > My Projects <https://wiki.ubuntu.com/amjjawad/Projects>
>     > > > >
>     > > > > --
>     > > > > Mailing list: https://launchpad.net/~lubuntu-qa
>     <https://launchpad.net/%7Elubuntu-qa>
>     > > > > Post to : lubuntu-qa@xxxxxxxxxxxxxxxxxxx
>     <mailto:lubuntu-qa@xxxxxxxxxxxxxxxxxxx>
>     > > > > Unsubscribe : https://launchpad.net/~lubuntu-qa
>     <https://launchpad.net/%7Elubuntu-qa>
>     > > > > More help : https://help.launchpad.net/ListHelp
> 
> 
> 
> 
> -- 
> https://wiki.ubuntu.com/phillw