#9621 NORM 1.5-F11: "BUG: spinlock bad magic" during resume

[Zarro Boogs per Child]

#9621: "BUG: spinlock bad magic"  during resume
--------------------------+-------------------------------------------------
 Reporter:  pgf           |                 Owner:               
     Type:  defect        |                Status:  new          
 Priority:  normal        |             Milestone:  1.5-F11      
Component:  not assigned  |               Version:  not specified
 Keywords:                |           Next_action:  never set    
 Verified:  0             |   Deployment_affected:               
Blockedby:                |              Blocking:               
--------------------------+-------------------------------------------------
 seen just once.

 was testing suspend/resume on B2 board.

 kernel is home-built, with minor changes, mostly to the dcon driver, from
 019dbcf0ee6262f617eb1156eef813be63cb02c3.

 {{{
 [root at localhost dev]# echo 9 > /proc/sys/kernel/printk
 [root at localhost dev]# echo mem > /sys/power/state
 [   58.385184] PM: Syncing filesystems ... done.
 [   65.764178] PM: Preparing system for mem sleep
 [   65.769001] Freezing user space processes ... (elapsed 0.00 seconds)
 done.
 [   65.778552] Freezing remaining freezable tasks ... (elapsed 0.00
 seconds) done.
 [   65.786658] PM: Entering mem sleep
 [   65.790865] dcon suspending
 [   65.793912] dcon_source_switch to DCON
 [   65.798005] gsc-d 0xc, gpio 0x72 gpi 0x1  xe0 0 xe1 0 xe3 7 xe4 c8 x95
 cd x9b 88 x04 3 x2c 2d gpice 40
 [   65.812261] dconmode is 0x69
 [   65.815388] dconload now 0
 [   65.837316] gsc 0x4c, gpi 0x2
 [   65.840578] gsc-4 0xc, gpio 0x72 gpi 0x2  xe0 0 xe1 0 xe3 7 xe4 c8 x95
 cd x9b 88 x04 3 x2c 2d gpice 40
 [   65.847306] olpc-dcon: The DCON has control
 [   65.847306] HDA Intel 0000:00:14.0: PCI INT A disabled
 [   65.880127] ehci_hcd 0000:00:10.4: PCI INT D disabled
 [   65.885658] ehci_hcd 0000:00:10.4: PME# disabled
 [   65.910113] uhci_hcd 0000:00:10.1: PCI INT B disabled
 [   65.915629] uhci_hcd 0000:00:10.1: PME# disabled
 [   65.940108] uhci_hcd 0000:00:10.0: PCI INT A disabled
 [   65.945625] uhci_hcd 0000:00:10.0: PME# disabled
 [   65.970146] mmc_suspend_host: turning off power on mmc0
 [   65.975818] sdhci_set_ios: power off for mmc0 from b063bc80
 [   65.980123] sdhci_set_power: new power value = 0
 [   65.986898] mmc_suspend_host: turning off power on mmc1
 [   65.992574] sdhci_set_ios: power off for mmc1 from b063bc80
 [   65.998622] mmc_suspend_host: turning off power on mmc2
 [   66.004308] sdhci_set_ios: power off for mmc2 from b063bc80
 [   66.010418] sdhci-pci 0000:00:0c.0: PME# disabled
 [   66.015530] sdhci-pci 0000:00:0c.0: PCI INT A disabled
 [   66.040159] ACPI handle has no context!
 [   66.065016] ACPI: Preparing to enter system sleep state S3
 }}}
 ...pushed power button...
 {{{
 +r[   66.071002] BUG: spinlock bad magic on CPU#0, bash/2148

 }}}

-- 
Ticket URL: <http://dev.laptop.org/ticket/9621>
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