After  a few days of further testing the problem appears again, only not
when tryig to connect, but seemingly randomly.

here's my dmesg output. The crash seemingly happens at 'Disabling IRQ #16':

[  801.506696] Call Trace:
[  801.506712]  [<c1518c98>] ? printk+0x2d/0x2f
[  801.506725]  [<c10aab99>] __report_bad_irq+0x29/0xd0
[  801.506733]  [<c10aaf64>] note_interrupt+0x104/0x150
[  801.506743]  [<c10a948e>] handle_irq_event_percpu+0x9e/0x200
[  801.506753]  [<c1026018>] ? default_spin_lock_flags+0x8/0x10
[  801.506762]  [<c152c6fd>] ? _raw_spin_lock_irqsave+0x2d/0x40
[  801.506770]  [<c1026018>] ? default_spin_lock_flags+0x8/0x10
[  801.506780]  [<c101d43d>] ? __io_apic_modify_irq+0x7d/0x90
[  801.506788]  [<c10a962b>] handle_irq_event+0x3b/0x60
[  801.506796]  [<c10ab6a0>] ? unmask_irq+0x30/0x30
[  801.506803]  [<c10ab6ee>] handle_fasteoi_irq+0x4e/0xc0
[  801.506808]  <IRQ>  [<c1533c32>] ? do_IRQ+0x42/0xc0
[  801.506822]  [<c104cf22>] ? sys_gettimeofday+0x32/0x70
[  801.506830]  [<c1533b70>] ? common_interrupt+0x30/0x38
[  801.506839]  [<c1520000>] ? reserve_backup_gdb.isra.11+0x26d/0x2c0
[  801.506844] handlers:
[  801.506885] [<f835d130>] i915_driver_irq_handler
[  801.506891] Disabling IRQ #16
[  803.004080] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 55440, at 55441], missed IRQ?
[  844.685483] chromium-browse[1520]: segfault at 0 ip b42e1550 sp bfedb090
error 4 in chromium-browser[b3f46000+38fa000]
[  900.000032] [Hardware Error]: Machine check events logged
[  968.068166] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57628, at 57630], missed IRQ?
[  970.788102] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57659, at 57661], missed IRQ?
[  973.636113] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57697, at 57699], missed IRQ?
[  976.180065] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57728, at 57730], missed IRQ?
[  979.076108] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57771, at 57773], missed IRQ?
[  980.932129] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57783, at 57785], missed IRQ?
[  983.872135] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57823, at 57825], missed IRQ?
[  987.612104] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57874, at 57876], missed IRQ?
[  989.224118] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 57880, at 57882], missed IRQ?
[ 1014.680163] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 58077, at 58079], missed IRQ?
[ 1016.700168] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 58099, at 58101], missed IRQ?
[ 1018.520060] [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer
elapsed... render ring idle [waiting on 58115, at 58117], missed IRQ?



<email address hidden> 2011. november 14., hétfő napon a következőt írta:

> Anyway every other destops (Unity2D, KDE, Gnome3) works fine. It makes
> only Unity 3D crash. So I would not say it is invalid.
>
> Sebastien Bacher 2011. november 14., hétfő napon a következőt írta:
>
>> closing the bug since that's not an Unity issue
>>
>> ** Changed in: unity (Ubuntu)
>>   Importance: Undecided => Low
>>
>> ** Changed in: unity (Ubuntu)
>>       Status: New => Invalid
>>
>> ** Changed in: unity
>>   Importance: Undecided => Low
>>
>> ** Changed in: unity
>>       Status: New => Invalid
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/879343
>>
>> Title:
>>  Unity freezes when trying to connect to a network.
>>
>> Status in Unity:
>>  Invalid
>> Status in “unity” package in Ubuntu:
>>  Invalid
>>
>> Bug description:
>>  Unity3d was crashing all the time I logged in.  And freezing the whole
>> desktop. I thought it was because my netbook specs (intel atom, i915 gpu).
>>  Until i found out if i turn off my wireless card disabling automatic
>> connection to internet, Unity starts fine and is pretty snappy and usable.
>> If i turn wireless back with Fn+F1 as soon as the connection sequence
>> starts unity freezes again.
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/unity/+bug/879343/+subscriptions
>>
>
>
> --
> *Csonka Bálint* @913
>
>

-- 
*Csonka Bálint* @913