Tejun Heo wrote:
Mark Lord wrote:
..
It would be nice if somebody who can hear the "pop" would also test this,
as it will confirm that this is a complete fix for the problem.
You'll probably be able to here the "pop" on sleep-to-disk.
My "pop" drives are busy elsewhere right now.
The system I do have to test with has a "pop",
but that's from the speakers not the drive.
However, the S.M.A.R.T. data was also shown earlier to provide
a record of the unnecessary wear and tear.
Here it is from two hibernates (Linux "suspend-to-disk") before patching:
- 4 Start_Stop_Count 0x0032 099 099 020 Old_age Always - 1711
+ 4 Start_Stop_Count 0x0032 099 099 020 Old_age Always - 1712
..
- 12 Power_Cycle_Count 0x0032 099 099 020 Old_age Always - 1051
+ 12 Power_Cycle_Count 0x0032 099 099 020 Old_age Always - 1053
..
-192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 126
-193 Load_Cycle_Count 0x0032 015 015 000 Old_age Always - 170404
+192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 128
+193 Load_Cycle_Count 0x0032 015 015 000 Old_age Always - 170405
With the patch applied, I don't see *any* new activity in those S.M.A.R.T.
attributes over multiple hibernates (Linux "suspend-to-disk").
Next up, I'll try a few shutdowns and see.
But we should still get Stephen Clark or one of the other reporters
to confirm it on their systems.
-ml
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