On Tue, Aug 11, 2020 at 03:00:14PM +0200, Laurent Vivier wrote: > No problem. This code is tricky and it took me several months to really > start to understand it ... Oh great, we actually have someone who understands the code! Maybe you can help me understand: virtio_read takes the buf pointer and puts it in the vq. It can then return to caller (e.g. on a signal). Device can meanwhile write into the buffer. It looks like if another call then happens, and that other call uses a different buffer, virtio rng will happily return the data written into the original buf pointer, confusing the caller. Is that right? -- MST _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
