Hi, I found an emmc performance regression with below simple benchmark cmd: dd if=/dev/mmcblk0 of=/dev/null bs=8192 count=100000 This regression has been bisected to commit 427b6514d0953bf (“mmc: sdhci: Add Auto CMD Auto Select support”) If I revert this commit, the performance is good now. I’m not sure whether this is common issue or not. Thanks
