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Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qem
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu |
Date: |
Sat, 7 Nov 2009 10:44:02 +0000 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Avi Kivity wrote:
> So vfork() is required, or in light of its man page and glowing
> recommendations from the security people,
vfork() on Linux is fine to use, as long as you respect it's unwritten
requirements :-)
In a multithreaded program: you can start by spawning a thread for the
sole purpose of spawning a process. Call vfork() from the new thread.
Then a slow exec() call won't delay the rest of the program, because
it's only blocking the thread you created.
> we can mark guest memory as
> shared on fork and use plain fork(), like we do for pre mmu notifier
> kernels.
Aiee - what's the plan? Can a running KVM be forked, as in into two
separate processes to run the forked guests in parallel, or not?
Thanks,
-- Jamie
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, (continued)
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Avi Kivity, 2009/11/07
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Anthony Liguori, 2009/11/07
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Arnd Bergmann, 2009/11/07
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Anthony Liguori, 2009/11/07
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Avi Kivity, 2009/11/08
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Anthony Liguori, 2009/11/07
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Anthony Liguori, 2009/11/05
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Avi Kivity, 2009/11/06
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Anthony Liguori, 2009/11/06
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Avi Kivity, 2009/11/07
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu,
Jamie Lokier <=
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Avi Kivity, 2009/11/07
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Jamie Lokier, 2009/11/09
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Avi Kivity, 2009/11/10
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Jamie Lokier, 2009/11/10
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Anthony Liguori, 2009/11/07
- Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Jamie Lokier, 2009/11/05
Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu, Anthony Liguori, 2009/11/05