Thread (19 messages) 19 messages, 4 authors, 2012-09-11

Re: CONFIG_NO_HZ + CONFIG_CPU_IDLE freeze the system (Was Re: [PATCH] acpi : remove power from acpi_processor_cx structure)

From: Daniel Lezcano <hidden>
Date: 2012-09-11 21:28:04
Also in: lkml, xen-devel

On 09/11/2012 02:18 AM, John Stultz wrote:
On 09/10/2012 12:45 PM, Daniel Lezcano wrote:
quoted
On 09/10/2012 07:14 PM, John Stultz wrote:
quoted
In the meantime, I'll try to reproduce on my T61. If you could send me
your .config, I'd appreciate it.
http://pastebin.com/qSxqfdDK

The header of the config file shows for a v3.5-rc7 because it is the
result of the git-bisect. If you keep this config file for the latest
kernel that should reproduce the problem.

Let me know if you were able to reproduce the problem.
Great! With this I was able to quickly reproduce the problem and I think
I have a fix.

Would you mind testing the following patch? It seems to resolve the
issue, but I've not yet run it through my test suite to make sure it
didn't break anything else.

If both your and my testing comes back ok, I'll submit it to Thomas.
Sounds like this solves the problem. Without enough background on timers
in general, I don't have an opinion about the patch itself but I can
confirm the issue is no longer occurring.

Thanks
  -- Daniel

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