On Sun, 22 Sep 2013 19:25:32 +0300
Lars Noodén <lars.noo...@gmail.com> wrote:

> On 09/22/2013 07:12 PM, JM wrote:
> > On Sun, 22 Sep 2013 18:36:36 +0300
> > Lars Noodén <lars.noo...@gmail.com> wrote:
> > 
> >> On 09/22/2013 06:04 PM, JM wrote:
> >>> I will be interested to know if by any chance that helps. I would also 
> >>> like to know
> >>> about the specs of the machine(s) where the freeze have occurred 
> >>> (Motherboard, CPU,
> >>> GPU particularly).
> >>
> >> Thanks.  For just my own machine, it is this one:
> >>
> >>    http://people.ubuntu.com/~larsnooden/Hw/pike.lshw.html
> >>
> >> though others have different hardware I expect.  The freeze leaves no
> >> trace in the log files.
> >>
> >> Regards,
> >> /Lars
> > 
> > Hi Lars,
> > 
> > About logs:
> > Is the distro installed or is the freeze occurring with a live ? If it is 
> > installed,
> > is it possible to get the dmesg just after a reboot, and seek for the last 
> > lines just
> > before the last reboot lines ?
> 
> The distro is installed, but lately I've had freezes during the
> installation process.  Tomorrow, or whenever the new beta arrives, I'll
> be doing installation on the machine again.  3x alternate and 3x desktop.
> 
> > hum… I'm not sure it is still possible to get the dmesg messages from the 
> > former
> > session nowadays. Maybe seek for the last lines of dmesg from within a Live 
> > session?
> 
> I can't get the machine to crash on demand.

Of course, this would be just after one of these random crashes.


> > About mac mini : isn't there something in that kind of hardware which might 
> > be (?) →
> > 
> > Just noticed the two different kinds of CPUs : which one is in use when you 
> > boot? Can
> > you setup something in the bios to select one or the other? →
> 
> The output is from lshw.  I'm not so sure how reliable that is.

I have considered lshw very reliable so far. Have you started it with the admin 
rights?
(sudo lshw).

What does "cat /proc/cpuinfo" return ?

>  It should be registering an Intel(R) Core(TM)2 CPU.  I'm not up on hardware
> enough to know whether that is dual core or dual cpu.  But either way,
> both should be the same.  Looking at /proc/cpuinfo shows that both are
> the same, so I suspect that the fault is with lshw.

lshw shows a core duo and a pentium III.
…

→ Could you check in the BIOS to see if there is an additional PIII CPU showing
and enabled? (And if so if it could be disabled)

→→ This is your machine:
http://www.everymac.com/systems/apple/mac_mini/specs/mac_mini_cd_1.83-specs.html

(found from this list: 
http://www.everymac.com/systems/apple/mac_mini/index-macmini.html )

******************
> > id: 
> > cpu:0
> > description:        CPU
> > product:    Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz
> > vendor:     Intel Corp.
> > physical id:        
> > 117
> > bus info:   
> > cpu@0
> > version:    Intel(R) Core(TM)2 CPU T
> > slot:       U2E1
> > size:       1GHz
> > capacity:   1GHz
> > width:      64 bits
> > clock:      166MHz
> > capabilities:       fpu fpu_exception wp vme de pse tsc msr pae mce cx8 
> > apic sep
> > mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe 
> > syscall
> > nx x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni 
> > dtes64
> > monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow cpufreq
> > 
***

> > id: 
> > cpu:1
> > description:        CPU
> > product:    Pentium III
> > vendor:     Intel(R) Corporation
> > physical id:        
> > 11b
> > bus info:   
> > cpu@1
> > version:    Intel(R) Core(TM)2 CPU T
> > slot:       U2E1
> > size:       1833MHz
> > capacity:   1833MHz
> > clock:      166MHz
> > capabilities:       cpufreq

******************
> > 
> > That seems exotic to me. ^^
> > 
> > What about the agpgart-intel and i915 drivers? Are they loaded once the boot
> > finished ? (you could try to boot to init 3 to check, in case it's not 
> > possible to
> > get a X session).

> Below is the output of lsmod.  That should show all the drivers, right?
>  Should I be checking immediately after boot?  It has about 9 hours of
> uptime right now.
> 
> Regards,
> /Lars
> 
> Module                  Size  Used by
(...)
> i915                  655709  2
(...)

It does not show agpgart-intel and after a fast search in Lubuntu vbox, in my 
own
Archlinux box and on the web it seems not to be provided anywhere anymore.

I don't quite see how zram would interfere with the GPU abilities. Are you
considering trying the values I have pointed to in the last mail here ? "Date: 
Sun, 22
Sep 2013 17:04:13 +0200"

Regards,
Mélodie

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