this affects boards that share sdcard on the same bus as another SPI
device. In this case it was a QiotekZealotH743 where logging stopped
this issue is that the SPI hooks for MMC SPI did not do a DMA channel
lock before the SPI device lock. So when the RAMTRON driver on the
QiotekZealotH743 which is on the same SPI2 bus as the sdcard did an
operation we had a lock order violation