[PATCH 0/6] AHCI suspend/resume support --take3

[PATCH 0/6] AHCI suspend/resume support --take3

[zhao, forrest]

Hi, all

This is the take 3 of AHCI suspend/resume patches.

The patch is against #upstream[
2154cfa6ba560401d25f6cc083fe3fb996cbb571] + Tejun's Power Management
patch(available at
http://htj.dyndns.org/git/?p=libata-tj.git;a=shortlog;h=new-pm).

Although Tejun's PM patch may change as he mentioned in another mail,
such change is minor and will not impact the logic of AHCI suspend/
resume. So I re-send the patch in order to get test feedback and review
comments earlier.

Compared with last version, all the changes are in [PATCH 6/6]. In
particular, I made changes to the sixth patch to integrate it with
Tejun's PM patch.

Thanks,
Forrest

Re: [PATCH 0/6] AHCI suspend/resume support --take3

[Jens Axboe]

On Thu, Jun 29 2006, zhao, forrest wrote:
> Hi, all
> 
> This is the take 3 of AHCI suspend/resume patches.
> 
> The patch is against #upstream[
> 2154cfa6ba560401d25f6cc083fe3fb996cbb571] + Tejun's Power Management
> patch(available at
> http://htj.dyndns.org/git/?p=libata-tj.git;a=shortlog;h=new-pm).
> 
> Although Tejun's PM patch may change as he mentioned in another mail,
> such change is minor and will not impact the logic of AHCI suspend/
> resume. So I re-send the patch in order to get test feedback and review
> comments earlier.
> 
> Compared with last version, all the changes are in [PATCH 6/6]. In
> particular, I made changes to the sixth patch to integrate it with
> Tejun's PM patch.

It's not working for me, I get -EBUSY errors on resume from both
ahci_port_spinup() and ahci_start_engine() and things just hang from
there.

-- 
Jens Axboe

Re: [PATCH 0/6] AHCI suspend/resume support --take3

[zhao, forrest]

On Tue, 2006-07-04 at 14:41 +0200, Jens Axboe wrote:
> It's not working for me, I get -EBUSY errors on resume from both
> ahci_port_spinup() and ahci_start_engine() and things just hang from
> there.

I know that it's not easy to capture dmesg log when SATA resume
operation failed. So I posted the dmesg log during AHCI suspend/resume
on my development machine to
http://www.infradead.org/~forrest/suspend-resume-dmesg/dmesg

Would you please tell me the difference between your dmesg log and mine?
That would be helpful for me to root-cause the bug.

Thanks,
Forrest

Re: [PATCH 0/6] AHCI suspend/resume support --take3

[Jens Axboe]

On Wed, Jul 05 2006, zhao, forrest wrote:
> On Tue, 2006-07-04 at 14:41 +0200, Jens Axboe wrote:
> > It's not working for me, I get -EBUSY errors on resume from both
> > ahci_port_spinup() and ahci_start_engine() and things just hang from
> > there.
> 
> I know that it's not easy to capture dmesg log when SATA resume
> operation failed. So I posted the dmesg log during AHCI suspend/resume
> on my development machine to
> http://www.infradead.org/~forrest/suspend-resume-dmesg/dmesg
> 
> Would you please tell me the difference between your dmesg log and mine?
> That would be helpful for me to root-cause the bug.

I will try and dump the ahci/libata messages on resume, just by writing
them down (there aren't that many).

-- 
Jens Axboe