Re: Slow Resume with SSD

[Carlos Moffat]

Hi

On 09/25/2012 12:07 PM, Srivatsa S. Bhat wrote:
> On 09/26/2012 12:00 AM, Carlos Moffat wrote:
> > 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?
>
> (Adding relevant people to CC)
>
> I recall seeing a similar problem getting fixed in mainline quite a long
> time ago (around v3.3 I think). Did you try the latest mainline kernel?
>
> Regards,
> Srivatsa S. Bhat


Yes, I'm using 3.5.4 (Ubuntu Mainline packages).

Carlos
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