Messages in this thread | | | Date | Sat, 21 Apr 2001 17:04:33 +0200 | From | Andrea Arcangeli <> | Subject | Re: x86 rwsem in 2.4.4pre[234] are still buggy [was Re: rwsem benchmarks [Re: generic rwsem [Re: Alpha "process table hang"]]] |
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On Sat, Apr 21, 2001 at 03:37:05PM +0100, rmk@arm.linux.org.uk wrote: > Andrea Arcangeli writes: > > That it is allowed by my generic code that does spin_lock_irq in down_* and > > spin_lock_irqsave in up_* but it's disallowed by the weaker semantics of the ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > generic and x86 semaphores 2.4.4pre[2345] (or + David's last patch). ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > Hang on, who's code is in 2.4.4-pre5? It claims to be Davids, which does > suffer from the problem I described.
Yes.
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