On 20 December 2017 at 18:44, Dr. David Alan Gilbert <dgilb...@redhat.com> wrote: > From a quick look my guess would be the wpgrps_size in sd_vmstate is > different on the source and destination for some reason
Good guess: I added a pre_save hook to sdcard.c's vmstate, which reports wpgrps_size as 201, but in the pre_load hook it is reported as 0. This seems to be because nothing ever calls the sd_reset() function. I suspect this is down to the "legacy" handling of sd card setup in sd_init(), or possibly the generic handling of reset for devices that connect to SD buses. (sd_reset() eventually gets called when the guest OS probes the SD controller and issues a card reset command, which is why it's correctly set by the time we do a vmsave.) thanks -- PMM
