Date: Mon, 9 Mar 2009 20:38:55 +0100 From: Alexej Sokolov <bsd.quest@googlemail.com> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: wrong data in remapped buffer Message-ID: <671bb5fc0903091238q2c4e4bd7m661333a509395b61@mail.gmail.com> In-Reply-To: <200903090821.25871.jhb@freebsd.org> References: <671bb5fc0903060813s284673e2t4d3c77b0ed6abc54@mail.gmail.com> <200903090821.25871.jhb@freebsd.org>
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2009/3/9 John Baldwin <jhb@freebsd.org> > On Friday 06 March 2009 11:13:38 am Alexej Sokolov wrote: > > Hello, > > I try to MALLOC a buffer in kern, then remap it with vm_map_find(), to > space > > of user process. > > Some times the remapped buffer in user space contain incorrect data. > > What architecture are you using? On some archs like amd64, small mallocs > (<= > PAGE_SIZE) don't use the kmem_map or kmem_object. > > -- > John Baldwin > anyway , the error happens only some times... I think there is other reason. My hardware is amd64 % uname -ms FreeBSD i386
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