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Old 09-25-2012, 06:24 PM
Carlos Moffat
 
Default Slow Resume with SSD

Hi,

(please let me know if this is the wrong list to ask this)

I have a Crucial M4 512 GB SSD installed on my Thinkpad X220 (Ubuntu
Precise). Overall this runs very nicely, but it takes 10+ seconds to
resume from suspend, apparently because some issue with the hardrive.
The only message I see while resuming is "COMRESET failed (errno=-16)".


[52483.228615] ata1: link is slow to respond, please be patient (ready=0)
[52487.870616] ata1: COMRESET failed (errno=-16)
[52488.190222] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[52488.190752] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES)
succeeded
[52488.190754] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE
LOCK) filtered out
[52488.190755] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES)
filtered out
[52488.191849] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES)
succeeded
[52488.191855] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE
LOCK) filtered out
[52488.191860] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES)
filtered out

[52488.192406] ata1.00: configured for UDMA/100
[52488.206298] sd 0:0:0:0: [sda] Starting disk
[52488.207334] Extended CMOS year: 2000
[52488.208335] PM: resume of devices complete after 10376.896 msecs
[52488.208552] PM: resume devices took 10.376 seconds

The only relevant post I've found was in the crucial support site:

http://forums.crucial.com/t5/Solid-State-Drives-SSD/SOLVED-M4-CT512M4SSD1-7mm-512Gb-SSD-too-slow-when-laptop-wakes/td-p/102666

which suggested adding libata.force=nohrst as a boot option to get rid
of the problem.


I tried that, but the laptop wouldn't suspend.

Any ideas?

Thanks,
Carlos

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