Messages in this thread | | | Date | Thu, 10 Nov 2005 15:16:30 +0200 | From | Gleb Natapov <> | Subject | Re: Nick's core remove PageReserved broke vmware... |
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On Thu, Nov 10, 2005 at 03:16:30PM +0200, Michael S. Tsirkin wrote: > Quoting Gleb Natapov <gleb@minantech.com>: > > Subject: Re: Nick's core remove PageReserved broke vmware... > > > > On Thu, Nov 10, 2005 at 02:48:53PM +0200, Michael S. Tsirkin wrote: > > > > Also perhapse we should skip VM_SHARED VMAs? > > > > > > Why? > > > > > They will work correctly across fork(). > > So why would I call madvise on such a VMA? > Because libraries such as MPI can't figure out if memory is shared or not. And madvise is just advise, so if kernel knows better it may ignore that advise.
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