Date: Mon, 25 Oct 2021 02:40:05 +0000 From: Chris Stephan <chris.stephan@live.com> To: Ed Maste <emaste@freebsd.org> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: linux compat: namespaces and cgroups Message-ID: <SA1PR02MB86699001A85C53DC98E771169B839@SA1PR02MB8669.namprd02.prod.outlook.com> In-Reply-To: <CAPyFy2A3Gx6JuJ45TBgjteZ1%2BbomNBEa=VdqxvR5%2BQvz=R3OgQ@mail.gmail.com> References: <SA1PR02MB8669C05283941C9BD891F2369B819@SA1PR02MB8669.namprd02.prod.outlook.com> <CAPyFy2A3Gx6JuJ45TBgjteZ1%2BbomNBEa=VdqxvR5%2BQvz=R3OgQ@mail.gmail.com>
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> From: Ed Maste <emaste@freebsd.org>=0A= >=0A= > One thing that might be useful to folks who might work on the FreeBSD=0A= > kernel side is to build up a collection of small programs that=0A= > demonstrate these syscalls and interfaces.=0A= =0A= Agreed. In my spare time I can use this as a research op to get a little mo= re=0A= into the guts of how these toolsets are both leveraged today in various =0A= projects and what usecases would be most beneficial to the FreeBSD=0A= community. Without a functioning kernel interface in place I'm assuming=0A= we would be testing against a vm of centos. I noticed the linuxulator will= =0A= be compatible with linux 4.4.0 in 14-CURRENT. Would that be a good=0A= target to write against?=0A= =0A= > To some extent I think we=0A= > can separate functionality from priority/limit controls.=0A= > Demonstrations for setns, unshare, and clone would be interesting.=0A= =0A= Agreed.=0A= =0A= > Several of us have had an interest in this for some time, but I am not=0A= > aware of any existing significant work. We've spoken about starting a=0A= > regular call for these topics in the near future, and I'll follow up=0A= > when ready to move forward.=0A= =0A= I appreciate that. Looking forward to those topics. Hopefully, not too=0A= soon so maybe I will have had enough time to research to provide=0A= some solid contributions to the conversation.=0A= =0A= So catch me if I missed something, but it sounds like prior the=0A= following two tasks could be worked on in parallel:=0A= =0A= 1. Find and document examples from how these functions are =0A= leveraged today and consolidate them to simple compilable source.=0A= =0A= 2. Generate user-land utilities that can either mock or mimic the =0A= behavior of setns, unshare, and clone on FreeBSD. =0A= =0A= Cheers.=0A= =0A= =0A= =0A= Generate =
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