On Fri, 2007-10-05 at 07:52 -0500, Anthony Liguori wrote: > http://hg.codemonkey.ws/qemu-nbd/ > > This will let you expose a qcow file (or an individual partition within > a qcow file) as an NBD server which you can then mount on your host. A > bit round-about but it gets the job done.
You just made my day. I've been threatening to do the same thing for weeks :) A couple of questions if you don't mind: - I was a bit confused by the statement on the nbd homepage: "Read-write nbd with client and server on same machine has a rather fundamental problem: when the system is short of memory, it tries to write back dirty pages. So the nbd client asks the nbd server to write back data, but as nbd-server is a userland process, it may require creating dirty pages to fullfill the request." The above makes sense, and the README in the source says this is not a problem on SMP systems since there's more than one kblockd flush thread... which makes less sense (why can't both kblockd's be blocked in this way?) Does qemu-nbd address this, perhaps by opening the qcow file with O_SYNC or something? or is this still a problem? - There's no license file with the code, I'm assuming it's GPL since you use qemu code directly? Thanks for writing such a useful bit of software! john.c ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
