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Re: pserialize(9) vs. TAILQ
On 22 Nov, 2014, at 00:14 , Eduardo Horvath <eeh%NetBSD.org@localhost> wrote:
> The last time I tried it the kernel would only run in TSO mode on SPARC
> machines. Mutexes just didn't work.
I'll guess one problem is in sparc/mutex.h, here:
#define MUTEX_RECEIVE(mtx) /* nothing */
#define MUTEX_GIVE(mtx) /* nothing */
This works with TSO, but with RMO they need to somehow generate
hardware memory barriers. See arm/mutex.h for an example with
them filled in.
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