On Fri, 30 Sep 2011 14:16:25 -0700, Michel Lespinasse wrote:
On Fri, Sep 30, 2011 at 11:19 AM, Eric B Munson <emunson@xxxxxxxxx>
wrote:
I am able to recreate on a second desktop I have here (same model
CPU but a
different MB so I am fairly sure it isn't dying hardware). It looks
to me like
a CPU softlocks and it stalls the process active there, so most
recently that
was XOrg. The machine lets me login via ssh for a few minutes, but
things like
ps and cat or /proc files will start to work and give some output
but hang.
I cannot call reboot, nor can I sync the fs and reboot via SysRq.
My next step
is to setup a netconsole to see if anything comes out in the syslog
that I
cannot see.
I haven't had time to try & reproduce locally yet (apologies - things
have been coming up at me).
But a prime suspect would be a bad interaction with
CONFIG_MEMORY_HOTPLUG, as Kamezama remarked in his reply to patch 4.
I
think this could be the most likely cause of what you're observing.
I will try disabling Memory Hotplug on Monday and let you know if that
helps.
Eric
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