[lkml]   [2010]   [Aug]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] SATA / AHCI: Do not play with the link PM during suspend to RAM
    Hello, sorry about the delay.

    On 08/19/2010 06:23 PM, Stephan Diestelhorst wrote:
    > It says "max_performance", I have not touched anyhting. So it has been
    > like that all the time. Would this explain why your patch did not show
    > the debug printout?

    Hmm... okay. Yeah, if you haven't been using IPM at all, there won't
    be any debug messages but at the same time the posted patch should
    have had the same effect as Rafael's patch as IPM path isn't traveled
    at all. Can you please check the followings?

    * You're actually running the correct patched kernel and modules. It
    probably is a good idea to add a printk message. ie. Apply the
    patch and add a printk() in ata_host_request_pm() in libata-core.c
    and make sure the debug messages appears.

    * Rafael's patch actually fixes the problem. If you haven't been
    using IPM at all, Rafael's patch and mine should behave exactly the
    same (ie. no IPM operation at all during suspend/resume). It could
    be that you're seeing a different issue.

    Rafael, can you please test my patch and see how your case behaves?



     \ /
      Last update: 2010-08-23 14:11    [W:0.034 / U:20.756 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site