Messages in this thread |  | | Date | Wed, 13 Sep 2000 12:38:15 +0200 | | From | Ralf Baechle <> | | Subject | Re: [patch]2.4.0-test6 "spinlock" preemption patch |
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On Tue, Sep 12, 2000 at 11:37:46AM +0100, Alan Cox wrote:
> That code example can in theory deadlock without any patches if the CPU's > end up locked in sync with each other and the same one always wins the test. > It isnt likely on current x86 but other processors are a different story
If seen systems (not processors!) that can detect such a case let one process randomly win over the others.
Ralf
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