#7951 NORM 8.2.0 (: kernel logs many "cafe-ccic" messages while resuming

[Zarro Boogs per Child]

#7951: kernel logs many "cafe-ccic" messages while resuming
--------------------+-------------------------------------------------------
 Reporter:  gnu     |         Owner:  dilinger                
     Type:  defect  |        Status:  new                     
 Priority:  normal  |     Milestone:  8.2.0 (was Update.2)    
Component:  kernel  |       Version:  Mass Production Hardware
 Keywords:          |   Next_action:  diagnose                
 Verified:  0       |     Blockedby:                          
 Blocking:          |  
--------------------+-------------------------------------------------------
 joyride-2263, kernel 2.6.25-20080804.1.olpc.a347731f82edeb8, G1G1 MP.

 Sometimes when resuming from suspend, dmesg shows a dozens of messages
 from the CaFe chip.  I'm not even sure which subsystem of the chip is
 complaining.  I have a 1GB SD card inserted and mounted in this XO.

 Sample messages:
 {{{
 [  372.170018] cafe1000-ccic 0000:00:0c.2: Frame overrun on 0, frames lost
 [  372.170018] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.170018] cafe1000-ccic 0000:00:0c.2: Frame overrun on 1, frames lost
 [  372.170018] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.170018] cafe1000-ccic 0000:00:0c.2: Frame overrun on 2, frames lost
 [  372.170018] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.548784] cafe1000-ccic 0000:00:0c.2: Frame overrun on 0, frames lost
 [  372.548803] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.548824] cafe1000-ccic 0000:00:0c.2: Frame overrun on 1, frames lost
 [  372.548842] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.548862] cafe1000-ccic 0000:00:0c.2: Frame overrun on 2, frames lost
 [  372.548881] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.550640] cafe1000-ccic 0000:00:0c.2: Frame overrun on 0, frames lost
 [  372.550640] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.550640] cafe1000-ccic 0000:00:0c.2: Frame overrun on 1, frames lost
 [  372.550640] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.550640] cafe1000-ccic 0000:00:0c.2: Frame overrun on 2, frames lost
 [  372.550640] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.551330] cafe1000-ccic 0000:00:0c.2: Frame overrun on 0, frames lost
 [  372.551330] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.551330] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
 [  372.551330] cafe1000-ccic 0000:00:0c.2: Frame interrupt in non-
 operational state
    ...  (dozens more) ...
 }}}

 I do not know if these have any bad effect or not, but they sure do fill
 the kernel log.

 I was not using the camera at the time of suspend (nor since booting).  I
 was not using the SD card either, but it was mounted, and the Journal or
 Datastore might have been messing with it.

-- 
Ticket URL: <http://dev.laptop.org/ticket/7951>
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