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Random freeze

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  Random freeze Paolo Cavallini <cavallini@faunalia.it> - 2015-11-07 18:10 +0100
    Re: Random freeze Paolo Cavallini <cavallini@faunalia.it> - 2015-11-09 13:50 +0100
      Re: Random freeze Alberto Luaces <aluaces@udc.es> - 2015-11-09 13:50 +0100
        Re: Random freeze Paolo Cavallini <cavallini@faunalia.it> - 2015-11-09 15:00 +0100
      Re: Random freeze Patrick Bartek <nemommxiv@gmail.com> - 2015-11-09 17:10 +0100
    Re: Random freeze Sven Arvidsson <sa@whiz.se> - 2015-11-09 14:50 +0100

#160275 — Random freeze

Hi all,
I'm on sid, and since a couple of weeks I'm experiencing random freezes;
pretty bad, I have to hard reset the machine. I suspect it is the ugly
wifi proprietary driver:

===
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192EE
PCIe Wireless Network Adapter

# aptitude show firmware-realtek
Pacchetto: firmware-realtek
Nuovo: sì
Stato: installato
Installato automaticamente: no
Multi-Arch: foreign
Versione: 20151018-2
Priorità: opzionale
Sezione: non-free/kernel
Responsabile: Debian Kernel Team <debian-kernel@lists.debian.org>
Architettura: all
Dimensione pacchetto installato: 1.021 k
Consiglia: initramfs-tools
Fornisce: firmware-realtek:i386 (= 20151018-2)
===

Any hint on how to debug, hopefully fix, this?
All the best, and thanks.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html

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#160343

Hi all,
really nobody has a hint? I can provide further info as needed.
My problem is theat with a random crash there is little I can do to
investigate, unless I have some suggestions.
All the best, and thanks a lot.

Il 07/11/2015 17:56, Paolo Cavallini ha scritto:
> Hi all,
> I'm on sid, and since a couple of weeks I'm experiencing random freezes;
> pretty bad, I have to hard reset the machine. I suspect it is the ugly
> wifi proprietary driver:
> 
> ===
> 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192EE
> PCIe Wireless Network Adapter
> 
> # aptitude show firmware-realtek
> Pacchetto: firmware-realtek
> Nuovo: sì
> Stato: installato
> Installato automaticamente: no
> Multi-Arch: foreign
> Versione: 20151018-2
> Priorità: opzionale
> Sezione: non-free/kernel
> Responsabile: Debian Kernel Team <debian-kernel@lists.debian.org>
> Architettura: all
> Dimensione pacchetto installato: 1.021 k
> Consiglia: initramfs-tools
> Fornisce: firmware-realtek:i386 (= 20151018-2)
> ===
> 
> Any hint on how to debug, hopefully fix, this?
> All the best, and thanks.
> 


-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html

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#160344

Paolo Cavallini writes:

> My problem is theat with a random crash there is little I can do to
> investigate, unless I have some suggestions.

- Can you blacklist the wifi module to see if it keeps happening?
- Or, can you get a stack trace of the kernel?  See
https://unix.stackexchange.com/questions/60574/determining-cause-of-linux-kernel-panic

-- 
Alberto

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#160348

Thanks Alberto for replying.

Il 09/11/2015 13:48, Alberto Luaces ha scritto:
> - Can you blacklist the wifi module to see if it keeps happening?

if I switch wifi off it does not; blacklisting the module would leave me
without wifi, so essentially the same situation, right?

> - Or, can you get a stack trace of the kernel?  See
> https://unix.stackexchange.com/questions/60574/determining-cause-of-linux-kernel-panic

will try, not sure it will write something before freezing.
All the best.

-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html

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#160350

On Mon, 09 Nov 2015, Paolo Cavallini wrote:

> Hi all,
> really nobody has a hint? I can provide further info as needed.
> My problem is theat with a random crash there is little I can do to
> investigate, unless I have some suggestions.
> All the best, and thanks a lot.

Try installing Jessie as a dual boot and see if the problem
still occurs.  If it doesn't, then your Sid wifi stuff
could be buggy. Or it could be something else in Sid.  No way to tell at
this point. If it does persist, then it could be hardware.

B


> Il 07/11/2015 17:56, Paolo Cavallini ha scritto:
> > Hi all,
> > I'm on sid, and since a couple of weeks I'm experiencing random
> > freezes; pretty bad, I have to hard reset the machine. I suspect it
> > is the ugly wifi proprietary driver:
> > 
> > ===
> > 03:00.0 Network controller: Realtek Semiconductor Co., Ltd.
> > RTL8192EE PCIe Wireless Network Adapter
> > 
> > # aptitude show firmware-realtek
> > Pacchetto: firmware-realtek
> > Nuovo: sì
> > Stato: installato
> > Installato automaticamente: no
> > Multi-Arch: foreign
> > Versione: 20151018-2
> > Priorità: opzionale
> > Sezione: non-free/kernel
> > Responsabile: Debian Kernel Team <debian-kernel@lists.debian.org>
> > Architettura: all
> > Dimensione pacchetto installato: 1.021 k
> > Consiglia: initramfs-tools
> > Fornisce: firmware-realtek:i386 (= 20151018-2)
> > ===
> > 
> > Any hint on how to debug, hopefully fix, this?
> > All the best, and thanks.
> > 
> 
> 

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#160347

[Multipart message — attachments visible in raw view] — view raw

On Sat, 2015-11-07 at 16:56 +0000, Paolo Cavallini wrote:
> Hi all,
> I'm on sid, and since a couple of weeks I'm experiencing random
> freezes;
> pretty bad, I have to hard reset the machine. I suspect it is the
> ugly
> wifi proprietary driver:
[...]
> 
> # aptitude show firmware-realtek

The firmware is non-free, but the driver that uses it is probably not. 

> Any hint on how to debug, hopefully fix, this?
> All the best, and thanks.

Can you log in from another system using SSH and get any logs? If it
worked before, then what changed? Pin down the package, then start
testing version and preferably bisect (if it's the kernel or anything
else that uses git) 

-- 
Cheers,
Sven Arvidsson
http://www.whiz.se
PGP Key ID 6FAB5CD5

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