Comment 0 for bug 1818264

When attempting to do a blockpull the following error occurs and the VM crashes.

qemu-system-x86_64: /build/qemu-Eap4uc/qemu-2.11+dfsg/block/io.c:1042: bdrv_co_do_copy_on_readv: Assertion `skip_bytes < pnum' failed.
2019-02-17 17:38:27.820+0000: shutting down, reason=crashed

This appears to be fixed upstream.
https://patchwork.kernel.org/patch/10512135/
https://github.com/qemu/qemu/commit/b0ddcbbb36a66a605eb232b905cb49b1cc72e74e