On Mon, 2017-05-01 at 16:33 -0700, Dave Jiang wrote:
:
+EXAMPLES
+--------
+
+Clear poison (bad blocks) for the provided device
+[verse]
+ndctl clear-error -f /dev/dax0.0 -s 0 -l 8
+
+Clear poison (bad blocks) at block offset 0 for 8 blocks on device
/dev/dax0.0
+
+OPTIONS
+-------
+-f::
+--file::
+ The device/file to be cleared of poison (bad blocks).
+
+-s::
+--start::
+ The offset where the poison (bad block) starts for this
device.
+ Typically this is acquired from the sysfs badblocks file.
+
+-l::
+--len::
+ The number of badblocks to clear in size of 512 bytes
increments. The
+ length must fit within the badblocks range. If the length
exceeds the
+ badblock range or is 0, the command will fail.
Actually, I am seeing '-l 0' works just like '-l 1'.
Thanks,
-Toshi