#9702 BLOC 1.5-har: Linux (OS42) crashes on resume on an XO-1.5 B3

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#9702: Linux (OS42) crashes on resume on an XO-1.5 B3
--------------------------------+-------------------------------------------
           Reporter:  wad       |       Owner:  dsaxena                          
               Type:  defect    |      Status:  new                              
           Priority:  blocker   |   Milestone:  1.5-hardware-C                   
          Component:  kernel    |     Version:  Development build as of this date
         Resolution:            |    Keywords:                                   
        Next_action:  diagnose  |    Verified:  1                                
Deployment_affected:            |   Blockedby:                                   
           Blocking:            |  
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Comment(by cjb):

 I removed just the sdhci_set_ios() printks.  Now I see, repeatably:

 {{{
 [root at localhost dev]# echo mem > /sys/power/state
 [   90.910174] entering sdhci_suspend_host
 [   90.914288] returning 0 from sdhci_suspend_host
 [   90.919081] entering sdhci_suspend_host
 [   90.923193] returning 0 from sdhci_suspend_host
 [   90.927986] entering sdhci_suspend_host
 [   90.932146] returning 0 from sdhci_suspend_host
 +r[   91.192239] entering sdhci_pci_resume
 [   91.196149] entering sdhci_resume_host
 [   91.200204] doing sdhci reinit
 [   91.203439] entering mmc_resume_host
 [   91.207245] leaving mmc_resume_host
 [   91.221005] returning from end of sdhci_resume_host
 [   91.226150] entering sdhci_resume_host
 [   91.230160] doing sdhci reinit
 [   91.233416] entering mmc_resume_host
 [   91.237209] leaving mmc_resume_host
 [   91.241944] returning from end of sdhci_resume_host
 [   91.247106] entering sdhci_resume_host
 [   91.251135] doing sdhci reinit
 [   91.254379] entering mmc_resume_host
 [   91.326283] mmc2: error -123 during resume (card was removed?)
 <hang>
 }}}

 (which broadly matches up with pgf's sysrq trace)

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Ticket URL: <http://dev.laptop.org/ticket/9702#comment:13>
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