Messages in this thread | | | Date | Sat, 27 Jul 2013 17:41:30 +0200 | From | Marco Stornelli <> | Subject | Re: [PATCH RFC] pram: persistent over-kexec memory file system |
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Il 26/07/2013 14:29, Vladimir Davydov ha scritto: > Hi, > > We want to propose a way to upgrade a kernel on a machine without > restarting all the user-space services. This is to be done with CRIU > project, but we need help from the kernel to preserve some data in > memory while doing kexec. > > The key point of our implementation is leaving process memory in-place > during reboot. This should eliminate most io operations the services > would produce during initialization. To achieve this, we have > implemented a pseudo file system that preserves its content during > kexec. We propose saving CRIU dump files to this file system, kexec'ing > and then restoring the processes in the newly booted kernel. >
http://pramfs.sourceforge.net/
Marco
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