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

On 11/06/2018 01:49 AM, Eric Blake wrote: > On 11/2/18 3:11 AM, Dongli Zhang wrote: >> Hi, >> >> Is there any way to emulate I/O timeout on qemu side (not fault >> injection in VM kernel) without modifying qemu source code? > > You may be interested in Rich's work on nbdkit. If you don't mind > the overhead of the host connecting through NBD, then you can use > nbdkit's delay and fault-injection filters for inserting delays or > even run-time-controllable failures to investigate how the guest > reacts to those situations > Thank you all very much for the suggestions. I will take a look on nbdkit.