#11077 NORM 1.75-so: XO-1.75 mmc0: Timeout waiting for hardware interrupt

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#11077: XO-1.75 mmc0: Timeout waiting for hardware interrupt
--------------------+-------------------------------------------------------
 Reporter:  Quozl   |                 Owner:  saadia       
     Type:  defect  |                Status:  new          
 Priority:  normal  |             Milestone:  1.75-software
Component:  kernel  |               Version:  not specified
 Keywords:          |           Next_action:  never set    
 Verified:  0       |   Deployment_affected:               
Blockedby:          |              Blocking:               
--------------------+-------------------------------------------------------
 A kernel message appears frequently during runin testing on A3 and B1.  It
 does not impact the 12-hour rate of the runin-sdwrite test.  It does not
 have any obvious effect other than the kernel message output.

 {{{
 [   36.064563] mmc0: Timeout waiting for hardware interrupt.
 [   36.064588] sdhci: =========== REGISTER DUMP (mmc0)===========
 [   36.064608] sdhci: Sys addr: 0x00000000 | Version:  0x00000002
 [   36.064635] sdhci: Blk size: 0x00000000 | Blk cnt:  0x00000000
 [   36.064635] sdhci: Argument: 0x000001aa | Trn mode: 0x00000000
 [   36.064660] sdhci: Present:  0x01fa0000 | Host ctl: 0x00000001
 [   36.064673] sdhci: Power:    0x0000000f | Blk gap:  0x00000000
 [   36.064673] sdhci: Wake-up:  0x00000000 | Clock:    0x00000000
 [   36.064685] sdhci: Timeout:  0x00000000 | Int stat: 0x00000000
 [   36.064698] sdhci: Int enab: 0x00ff0003 | Sig enab: 0x00ff0003
 [   36.064711] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000
 [   36.064736] sdhci: Caps:     0x25fcc8b2 | Caps_1:   0x00002f77
 [   36.064736] sdhci: Cmd:      0x0000081a | Max curr: 0x00000000
 [   36.064760] sdhci: ===========================================
 }}}

 (The first line in the burst is level <3>, the subsequent are level <7>.
 Over a 12 hour test the frequency varies from 0 to 42 depending on unit.
 Only one test per unit run available.)

-- 
Ticket URL: <http://dev.laptop.org/ticket/11077>
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