linux-kernel - Re: Slow Resume with SSD

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Date:	Wed, 26 Sep 2012 00:37:41 +0530
From:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To:	Carlos Moffat <carlos@...iabloenlosdetalles.net>
CC:	linux-kernel@...r.kernel.org, computersforpeace@...il.com,
	ming.m.lin@...el.com, Norbert Preining <preining@...ic.at>,
	jgarzik@...ox.com, Linux PM mailing list <linux-pm@...r.kernel.org>
Subject: Re: Slow Resume with SSD

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

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