[Eug-lug] Random freezes

[Martin Kelly]

That's the strange thing... none, that I can think of, besides apt-get 
update and such.

Michael Miller wrote:
> What changes have you made in the last 72 hours?
> 
> -Miller
> 
> On 1/9/07, Devin <dlab00 at gmail.com> wrote:
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>> Martin Kelly wrote:
>> > Hey all,
>> >
>> > I have just had my computer freeze twice within 10 minutes or so.
>> > Activities: xorg, XMMS, firefox, apache serving a 60MB or so download.
>> > Both times, the freeze happened when the person downloading from me was
>> > at 14%...
>>
>> Might be time to run badblocks ;)
>>
>> > I don't know if this is a coincidence or not. Note these were
>> > complete frezes, not just xorg freezes... it was very strange.
>>
>> Mouse still move around? Applications that are already loaded into
>> memory still somewhat functional? Do you see your disk light lit (stuck)
>> or hear your disk making strange noise?
>>
>> > My question is if anybody knows what log files I might check to find 
>> the
>> > cause of the freeze.
>>
>> All depends on your system configuration, if it exists, check
>> /var/log/{kernel,syslog} for anomalies. Possibly upload that day's log
>> for us to examine.
>>
>> > Also, do you think it has something to do with the
>> > downloading?
>>
>> Specify what distro, kernel, and xorg versions you are running. Might
>> also be buggy hardware (dead network card?) or driver so paste output of
>> `lspci -v`
>>
>> Some kernels are configured with CONFIG_MAGIC_SYSRQ which allows you to
>> take control of a bad situation:
>>
>> http://lxr.linux.no/source/Documentation/sysrq.txt
>>
>> Typically to recover just Xorg breaking (which tends to happen when
>> running with current git sources), try hitting <SREQ>+k (SAK, kills off
>> all processes listening on /dev/console) and <SREQ>+r (unraw, puts
>> keyboard back into a 'normal' state), where <SREQ> is the SysRq sequence
>> depending on how you're interacting with the computer (typically hold
>> <Alt>, press and hold SysReq(/Print Screen), release <Alt> and press
>> command key). Also helps when something in the kernel goes bad making
>> the system unusable:
>>
>> <SREQ>+e (terminate all processes -- SIGTERM)
>> <SREQ>+i (terminate all processes -- SIGKILL)
>> <SREQ>+s (sync disks)
>> <SREQ>+u (remount disks read-only)
>> <SREQ>+b (reboot -- or <SREQ>+o for poweroff)
>>
>> > Thanks,
>> > Martin
>>
>> Thanks,
>>         - Devin
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