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Re: vmpage race and deadlock
On Sun, 28 Nov 2010 09:30:44 +0100
Juergen Hannken-Illjes <hannken%eis.cs.tu-bs.de@localhost> wrote:
> Usually within hours I get a deadlock where a thread is waiting on "genput"
> but the page in question is neither BUSY nor WANTED. I suppose I tracked (*1)
> it down to three places, where we change page flags without holding the
> object lock. With this diff (*2) in place the test runs for > 48 hours.
This is a nice find, which most probably also deserves a PR, as
netbsd-5 also lacks proper synchronization there.
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