#6532 BLOC Update1: SD Card Corruption

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#6532: SD Card Corruption
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  Reporter:  haralds  |       Owner:  dsaxena          
      Type:  defect   |      Status:  assigned         
  Priority:  blocker  |   Milestone:  Update1.1 (8.1.1)
 Component:  kernel   |     Version:                   
Resolution:           |    Keywords:  release?         
  Verified:  0        |    Blocking:  6893             
 Blockedby:           |  
----------------------+-----------------------------------------------------

Comment(by dsaxena):

 Replying to [comment:38 Rmyers]:
 > Great to see progress on this. A couple of questions: Is adding the
 timeout considered to be a final fix, or is an underlying cause going to
 be addressed? Is adding the timeout something that can be applied as a
 patch to test?
 >

 The final solution may end up being a timeout of a different value but I
 am digging into the
 code a bit more to see if there is another option. Even with a timeout,
 the current patch (follows) is a hack and the timeout needs to be handled
 via a quirk of some sort in the code path.


 {{{
 diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
 index 918477c..fc01f97 100644
 --- a/drivers/mmc/core/sd.c
 +++ b/drivers/mmc/core/sd.c
 @@ -527,6 +527,8 @@ static void mmc_sd_resume(struct mmc_host *host)

         mmc_claim_host(host);

 +       msleep(500);
 +
         err = mmc_sd_init_card(host, host->ocr, host->card);
         if (err != MMC_ERR_NONE) {
                 mmc_remove_card(host->card);
 }}}

-- 
Ticket URL: <http://dev.laptop.org/ticket/6532#comment:39>
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