#11982 BLOC 12.1.0: XO-1.5 os16 runin hang

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#11982: XO-1.5 os16 runin hang
--------------------------------+-------------------------------------------
           Reporter:  Quozl     |       Owner:  dsd                              
               Type:  defect    |      Status:  assigned                         
           Priority:  blocker   |   Milestone:  12.1.0                           
          Component:  kernel    |     Version:  Development build as of this date
         Resolution:            |    Keywords:                                   
        Next_action:  diagnose  |    Verified:  0                                
Deployment_affected:            |   Blockedby:                                   
           Blocking:            |  
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Comment(by greenfeld):

 A XO-1.5 with 12.1.0 os18 hung while doing 5 second on/off rtcwake cycles
 (no other tasks besides idling).

 There was no response to Sysrq requests after this happened.  The power
 LED is fully on.

 The last lines seen were:

 {{{
 Slept 1084 cycles
 [ 6757.647837] mmc1: new SDIO card at address 0001
 [ 6758.340812] libertas_sdio mmc1:0001:1: (unregistered net_device):
 20:7c:8f:43:87:56, fw 9.70.20p0, cap 0x000003a3
 [ 6758.361061] libertas_sdio mmc1:0001:1: wlan0: Marvell WLAN 802.11
 adapter
 [ 6758.399659] udevd[2669]: renamed network interface wlan0 to eth0
 [ 6758.469286] ADDRCONF(NETDEV_UP): eth0: link is not ready
 rtcwake: wakeup from "mem" using /dev/rtc0 at Tue Jul 17 17:52:58 2012
 [ 6762.060273] PM: Syncing filesystems ... done.
 [ 6762.091518] Freezing user space processes ... (elapsed 0.01 seconds)
 done.
 [ 6762.112822] Freezing remaining freezable tasks ... (elapsed 0.01
 seconds) done.
 [ 6762.134077] i8042 kbd 00:04: wake-up capability enabled by ACPI
 [ 6762.140114] i8042 aux 00:03: wake-up capability disabled by ACPI
 [ 6762.147553] libertas_sdio mmc1:0001:1: mmc1:0001:1: suspend: PM flags =
 0x3
 [ 6762.154662] viafb_suspend!
 [ 6762.158372] libertas_sdio mmc1:0001:1: Suspend without wake params --
 powering down card
 [ 6762.250526] mmc1: card 0001 removed
 [ 6762.270098] PM: suspend of devices complete after 136.896 msecs
 [ 6762.350317] PM: late suspend of devices complete after 74.193 msecs
 [ 6762.356764] ACPI: Preparing to enter system sleep state S3
 [ 6762.460103] PM: Saving platform NVS memory
 }}}

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Ticket URL: <http://dev.laptop.org/ticket/11982#comment:14>
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