Re: [Libguestfs] [Qemu-devel] How to emulate block I/O timeout on qemu side?

On Tue, Nov 06, 2018 at 09:14:57AM +0000, Richard W.M. Jones wrote: Oops, that's in a forthcoming blog post not this one. Not enough caffeine this morning. Combining the filters is easy however: nbdkit --filter=error --filter=delay \ memory size=$size \ rdelay=$delay wdelay=$delay \ error-rate=100% error-file=/tmp/error Then touching /tmp/error will inject errors, and removing /tmp/error will stop injecting errors. The documentation says you should be able to write error-rate=1 instead of error-rate=100%, but in fact that was broken until recently, and fixed in: https://github.com/libguestfs/nbdkit/commit/ee2d3b4fea6d4b7618262f85f8823... Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v