Messages in this thread | | | Date | Mon, 18 Jun 2007 11:18:32 +0200 | From | Ingo Molnar <> | Subject | Re: [BUG] long freezes on thinkpad t60 |
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* Miklos Szeredi <miklos@szeredi.hu> wrote:
> > > > This change causes the memory access of the "easy" spin-loop portion > > > > to be more agressive: after the REP; NOP we'd not do the 'easy-loop' > > > > with a simple CMPB, but we'd re-attempt the atomic op. > > > > > > It looks as if this is going to overflow of the lock counter, no? > > > > hm, what do you mean? There's no lock counter. > > I mean, the repeated calls to decb will pretty soon make lock->slock > wrap around.
ugh, indeed, bad thinko on my part. I'll rework this.
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