>>>>> "Michael" == Michael L Semon <[email protected]> writes:

Michael> This week, a simple `dc3dd wipe=/dev/sda5` operation had speeds
Michael> cut from 10-15 MB/s down to less than 1.8 MB/s.  With this
Michael> method, syncs took so long that magic SysRq keys were needed to
Michael> stop the PC. 

Please send me the output of:

# grep . /sys/block/sda/integrity/*

Thanks,
Martin

-- 
Martin K. Petersen      Oracle Linux Engineering
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