Messages in this thread | | | Date | Fri, 30 Sep 2011 17:40:33 -0400 | From | Eric B Munson <> | Subject | Re: [PATCH 0/9] V2: idle page tracking / working set estimation |
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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@mgebm.net> > 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.
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