On Thu, 29 Sep 2011, Eric B Munson wrote: > On Thu, 29 Sep 2011 13:25:00 -0700, Michel Lespinasse wrote: > >On Thu, Sep 29, 2011 at 9:43 AM, Eric B Munson <emunson@xxxxxxxxx> > >wrote: > >>I have been trying to test these patches since yesterday > >>afternoon. When my > >>machine is idle, they behave fine. I started looking at > >>performance to make > >>sure they were a big regression by testing kernel builds with > >>the scanner > >>disabled, and then enabled (set to 120 seconds). The scanner > >>disabled builds > >>work fine, but with the scanner enabled the second time I build > >>my kernel hangs > >>my machine every time. Unfortunately, I do not have any more > >>information than > >>that for you at the moment. My next step is to try the same > >>tests in qemu to > >>see if I can get more state information when the kernel hangs. > > > >Could you please send me your .config file ? Also, did you apply the > >patches on top of straight v3.0 and what is your machine like ? > > > >Thanks, > > > My .config will come separately to you. I applied the patches to > Linus' master branch as of yesterday. My machine is a single Xeon > 5690 with 12G of ram (do you need more details than that?) > > Thanks, > Eric 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. Eric
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