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[Till Kamppeter <813230@xxxxxxxxxxxxxxxxxx>]

After today's updates I am also suffering this bug, so I did the steps
of comment #2. The overloading of the system happens VERY quickly. A
"top" in a terminal window on a remote machine (SSHed in to my laptop)
shows that Xorg is quickly using up all memory and taking between 60%
and 100% CPU (see below). This happens within 2 or 3 seconds, "top" does
only one refresh and then I can only do a hard reset.

hp-toolbox.log is empty. The system is torn down before "tee" is able to
write any data.

This happens with all GUI tools of HPLIP. If I send a job into the fax
queue of an HP multi-function device, my system crashes the same way, as
the system probably tries to pop-up hp-sendfax.

My graphics card:

----------
till@till:~$ lspci
[...]
000:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
[...]
----------

Probably this is a problem of Xorg. For me Xorg also pulls 100% CPU when
lightdm is started.

----------
top - 22:59:21 up 14 min,  2 users,  load average: 4.80, 1.59, 0.98
Tasks: 196 total,   4 running, 191 sleeping,   0 stopped,   1 zombie
Cpu(s):  0.2%us,  4.9%sy,  0.0%ni,  0.0%id, 94.6%wa,  0.0%hi,  0.3%si,  0.0%st
Mem:   3952852k total,  3864404k used,    88448k free,     1452k buffers
Swap:  8388604k total,   597784k used,  7790820k free,   123340k cached
Write failed: Broken pipe
till@till-desktop:~$ I  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
  409 root      20   0     0    0    0 D    4  0.0   0:07.39 kworker/0:3        
   22 root      20   0     0    0    0 D    4  0.0   0:10.70 kworker/1:1        
 3736 root      20   0 4285m 2.5g  800 D    1 65.5   1:04.66 Xorg               
   24 root      20   0     0    0    0 R    1  0.0   0:01.05 kswapd0            
   44 root      20   0     0    0    0 R    0  0.0   0:00.49 kworker/0:2        
  306 root      20   0     0    0    0 R    0  0.0   0:12.64 kworker/1:2        
    1 root      20   0 24316  376  372 S    0  0.0   0:00.88 init               
    2 root      20   0     0    0    0 S    0  0.0   0:00.00 kthreadd           
    3 root      20   0     0    0    0 S    0  0.0   0:00.10 ksoftirqd/0        
    4 root      20   0     0    0    0 S    0  0.0   0:10.90 kworker/0:0        
    6 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/0        
    7 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/1        
    9 root      20   0     0    0    0 S    0  0.0   0:00.11 ksoftirqd/1        
   11 root       0 -20     0    0    0 S    0  0.0   0:00.00 cpuset             
   12 root       0 -20     0    0    0 S    0  0.0   0:00.00 khelper

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https://bugs.launchpad.net/bugs/813230

Title:
  Starting HP Toolbox brings system to a grinding halt

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