Date: Tue, 23 Sep 2008 17:58:21 -0700 From: Marcel Moolenaar <xcllnt@mac.com> To: Peter Grehan <grehan@freebsd.org> Cc: ppc@freebsd.org Subject: Re: ZFS race condition? Message-ID: <A894E37E-BB78-4BA7-A779-90587E2C4CD3@mac.com> In-Reply-To: <48D98E2C.1090606@freebsd.org> References: <675B0620-77FE-4B99-AC98-C0002F8045F7@mac.com> <48D98E2C.1090606@freebsd.org>
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On Sep 23, 2008, at 5:47 PM, Peter Grehan wrote: > Hi Marcel, > >> Anyone else playing with ZFS on PowerPC seeing this? > > It's on my todo list but you're a long way ahead of me :) I just happened to have a disk that I could use (one I use only for the release builds)... > You could try the 'null' stwcx in the context switch asm to flush > any pending reservations - I think I may have sent you mail about > this a long while back. This may result in two sections of code both > thinking they have a lock. Good call. I looked at that as part of the SMP work, but forgot about it already... Thanks, -- Marcel Moolenaar xcllnt@mac.com
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