Samsung 860/870 SSDs still have trouble with Queued TRIM on Linux

The fix for now is to use this as a kernel boot argument:


and verifying

/sys/class/scsi_host/host0/link_power_management_policy = max_performance

If you’re on a laptop, you may have to make an elevated service to manually write the value to /sys/class/…

The kernel bugtracker:


Do I understand correctly that not all 860/870 are affected, but NCQ and NCQtrim will be disabled for all 860/870 models?

Based on comments and a personal experience 860 pro model should not be affected, but it will also get a performance hit with NCQ disabled…

For the bugtracker, they do seem to be adding the quirk for ALL 860/870 SSDs.

Might be time to get your voice heard in the bugtracker.

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