Using swsusp on embedded Linux

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Hi,

I'm trying to use swsusp on an embedded Linux system (kernel - 2.6.32) and I encounter a the next problem:

I'm using our own driver for a block device for a swap partition (a partition on a non-volatile memory device e.g. NAND SD) and while mkswap and swapon acturally creates a swap partition on the device, the command echo disk > /sys/power/state gets stuck (cpu_idle() ).

/dev/cb0 is the swap partition.

I would appreciate if you could help me.

Thank you very much,
Alex.



Here if the log: (with logLevel=9 and CONFIG_PM_DEBUG) 

~ # echo disk > /sys/power/state 
[   72.273000] device: 'vcs63': device_add
[   72.274000] PM: Adding info for No Bus:vcs63
[   72.275000] device: 'vcsa63': device_add
[   72.275000] PM: Adding info for No Bus:vcsa63
[   72.293000] PM: Basic memory bitmaps created
[   72.298000] PM: Syncing filesystems ... done.
[   72.308000] Freezing user space processes ... (elapsed 0.00 seconds) done.
[   72.316000] Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
[   72.324000] PM: Preallocating image memory... done (allocated 6708 pages)
[   72.386000] PM: Allocated 26832 kbytes in 0.05 seconds (536.64 MB/s)
[   72.392000] platform ci13610-udc.0: preparing freeze
[   72.398000] serial8250 serial8250: preparing freeze
[   72.403000] gmac_drv_eth gmac_drv_eth.0: preparing freeze
[   72.409000] cb cb.0: preparing freeze
[   72.413000] cb cb.1: preparing freeze
[   72.416000] platform rtevent.0: preparing freeze
[   72.421000] platform rtevent.0: freeze
[   72.425000] cb cb.1: freeze
[   72.428000] cb cb.0: freeze
[   72.431000] gmac_drv_eth gmac_drv_eth.0: freeze
[   72.436000] serial8250 serial8250: freeze
[   72.440000] platform ci13610-udc.0: freeze
[   72.445000] platform rtevent.0: LATE freeze
[   72.450000] cb cb.1: LATE freeze
[   72.453000] cb cb.0: LATE freeze
[   72.456000] gmac_drv_eth gmac_drv_eth.0: LATE freeze
[   72.462000] serial8250 serial8250: LATE freeze
[   72.466000] platform ci13610-udc.0: LATE freeze
[   72.471000] Checking wake-up interrupts
[   72.471000] Suspending System Devices
[   72.471000] Suspending type 'clocksource':
[   72.471000]  clocksource0
[   72.471000] Suspending type 'timekeeping':
[   72.471000]  timekeeping0
[   72.471000] Suspending type 'cpu':
[   72.471000]  cpu0
[   72.471000] PM: Creating hibernation image: 
[   72.471000] PM: Need to copy 6696 pages
[   72.471000] PM: Normal pages needed: 6696 + 1024, available pages: 9683
[   72.471000] PM: Hibernation image created (6696 pages copied)
[   72.471000] Resuming System Devices
[   72.471000] Resuming type 'cpu':
[   72.471000]  cpu0
[   72.471000] Resuming type 'timekeeping':
[   72.471000]  timekeeping0
[   72.471000] Resuming type 'clocksource':
[   72.471000]  clocksource0
[   72.499000] platform ci13610-udc.0: EARLY thaw
[   72.504000] serial8250 serial8250: EARLY thaw
[   72.508000] gmac_drv_eth gmac_drv_eth.0: EARLY thaw
[   72.513000] cb cb.0: EARLY thaw
[   72.517000] cb cb.1: EARLY thaw
[   72.520000] platform rtevent.0: EARLY thaw
[   72.524000] platform ci13610-udc.0: thaw
[   72.529000] serial8250 serial8250: thaw
[   72.533000] gmac_drv_eth gmac_drv_eth.0: thaw
[   72.538000] cb cb.0: thaw
[   72.540000] cb cb.1: thaw
[   72.543000] platform rtevent.0: thaw
[   72.547000] platform rtevent.0: completing thaw
[   72.552000] cb cb.1: completing thaw
[   72.556000] cb cb.0: completing thaw
[   72.559000] gmac_drv_eth gmac_drv_eth.0: completing thaw
[   72.565000] serial8250 serial8250: completing thaw
[   72.570000] platform ci13610-udc.0: completing thaw
[   72.575000] PM: writing image.
[   72.579000] PM: Free swap pages: 8190


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