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
For instance, I would like to observe/study/debug the I/O timeout handling of
nvme, scsi, virtio-blk (not supported) of VM kernel.
Is there a way to trigger this on purpose on qemu side?
Thank you very much!
Dongli Zhang
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization:
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