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IMX6: mkfs.ext4 on emmc is delayed

Question asked by kiruthika varadarajan on Jun 4, 2015
Latest reply on Jun 11, 2015 by kiruthika varadarajan

Hi,

In IMX6 with 4GB flash when i perform

mkfs.ext4 on /dev/mmcblk0p2,  its consuming lot of time and seems like hardware hangs.

 

I tried with the option

mkfs.ext4 -E nodiscard /dev/mmcblk0p2  and it happens very quickly

 

4GB ,memory support "Discard" option..

root@imx6solosabreauto:/sys/block/mmcblk0/queue# cat discard_max_bytes

512

 

Any clues on why filesystem creation without -E nodiscard consumes more time.??

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