[Bug 1039405] [NEW] Lockups when running vm's with 768MB of memory

[karl anliot]

Public bug reported:

version tested:  ubiquity 2.10.20 on 12.04.1 daily build.
$md5sum precise-desktop-amd64.iso
64cae667e6fde29ea86043ede5e79493  precise-desktop-amd64.iso

Reproducing:
setup a new KVM machine with 768 MB of ram.  (because users were reporting crashes with 768)

*after booting, select try Ubuntu
* start the installer, but not anything else.
* select "something else"
since the disk has no parition table, click to create a "new partition table
create an 888 megabyte swap at the end of the disk
create a 7701 M swap at the beginning of the disk.
Ubiquity crashes when clicking to the next screen.

you'll notice that the syslog has a: OSError: [Errno 12] Cannot allocate
memory.

To fix this bug, ubiquity should not be installing on PC's with too little RAM, especially when crashes are so consistent.
Ubiquity should CLEARLY warn about crashes on low-ram machines.  

here's the syslog and other stuff:
x at ubu:~$ pastebinit debug
http://paste.ubuntu.com/1158548/
x at ubu:~$ pastebinit partman
http://paste.ubuntu.com/1158549/
x at ubu:~$ pastebinit syslog
http://paste.ubuntu.com/1158550/
x at ubu:~$ pastebinit version
http://paste.ubuntu.com/1158551/
x at ubu:~$ cat version
ubiquity 2.10.20

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1039405

Title:
  Lockups when running vm's with 768MB of memory

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  version tested:  ubiquity 2.10.20 on 12.04.1 daily build.
  $md5sum precise-desktop-amd64.iso
  64cae667e6fde29ea86043ede5e79493  precise-desktop-amd64.iso

  Reproducing:
  setup a new KVM machine with 768 MB of ram.  (because users were reporting crashes with 768)

  *after booting, select try Ubuntu
  * start the installer, but not anything else.
  * select "something else"
  since the disk has no parition table, click to create a "new partition table
  create an 888 megabyte swap at the end of the disk
  create a 7701 M swap at the beginning of the disk.
  Ubiquity crashes when clicking to the next screen.

  you'll notice that the syslog has a: OSError: [Errno 12] Cannot
  allocate memory.

  To fix this bug, ubiquity should not be installing on PC's with too little RAM, especially when crashes are so consistent.
  Ubiquity should CLEARLY warn about crashes on low-ram machines.  

  here's the syslog and other stuff:
  x at ubu:~$ pastebinit debug
  http://paste.ubuntu.com/1158548/
  x at ubu:~$ pastebinit partman
  http://paste.ubuntu.com/1158549/
  x at ubu:~$ pastebinit syslog
  http://paste.ubuntu.com/1158550/
  x at ubu:~$ pastebinit version
  http://paste.ubuntu.com/1158551/
  x at ubu:~$ cat version
  ubiquity 2.10.20

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