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2001-11-11 Thread Thomas Shelby
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Re: L4Mach or Refactor Hurd Servers?

2001-11-11 Thread Ian Duggan
> Personally, I find it very appealing to be able to perform *arbitrary* > i/o or i/o-like operations by sending asyncronous messages, and then > being able to wait on a collection of reply ports until one of the > operations returns or times out. I guess one reason I like that way of > operation

Re: L4Mach or Refactor Hurd Servers?

2001-11-11 Thread Thomas Bushnell, BSG
Farid Hajji <[EMAIL PROTECTED]> writes: > Absolutely. No-senders/dead port notification is one of the hardest parts > to port to a non-mach kernel, like L4. Please don't talk about these as if they were the same thing. Dead name notifications are not very important. No senders notifications *a

Re: L4Mach or Refactor Hurd Servers?

2001-11-11 Thread Thomas Bushnell, BSG
Farid Hajji <[EMAIL PROTECTED]> writes: > Basically, it proved difficult to emulate the complete Mach API. If you > want to implement L4Mach, it will most likely provide just a subset of > Mach, so that we can get the Hurd up and running (in a first step). Making the Hurd run on L4 should be don

Re: oskit-mach: vm_map_copyout crash

2001-11-11 Thread Roland McGrath
> The question was: How do I allocate memory? I'm asking this, because > there might be a difficulty at this point. We can not use kfree to free > some memory, so kalloc would fail also, right? It's the context that's not clear. There are numerous kinds of memory allocation. The only kinds that

Re: oskit-mach: vm_map_copyout crash

2001-11-11 Thread Daniel Wagner
> I'm not really following your question. If you are not hitting this panic > now, then let's not worry about it until you do. The question was: How do I allocate memory? I'm asking this, because there might be a difficulty at this point. We can not use kfree to free some memory, so kalloc would

Re: L4Mach or Refactor Hurd Servers?

2001-11-11 Thread Niels Möller
Farid Hajji <[EMAIL PROTECTED]> writes: > * IPC should be only used in stubs during an RPC. > > This is very important. Most IPC in the Hurd occurs during > an RPC call. Most RPC calls _can_ be done in a completely > synchroneous manner. By sticking to this requirement, it > wo