Han Wang wrote:
Hi,
I am testing the 2.6.35-rc1 pm branch code on Overo. The system
boots ok. (I can provide booting log if that is necessary) However,
when I use "echo mem > /sys/power/state" to send overo to sleep and
wake it up by enter a key into serial console. I got garbage
characters in the serial console, and I can not enter anything into
the console anymore. I wonder if anyone has encountered a similar
problem, and please give me some suggestion.
I have appended command log below.
r...@overo:~# echo mem > /sys/power/state
PM: Syncing filesystems ... done.
PM: Preparing system for mem sleep
PM: Adding info for No Bus:vcs63
PM: Adding info for No Bus:vcsa63
Freezing user space processes ... (elapsed 0.02 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
PM: Entering mem sleep
i2c_omap i2c_omap.1: preparing suspend
i2c_omap i2c_omap.3: preparing suspend
platform overo_lcd: preparing suspend
serial8250 serial8250.0: preparing suspend, may wakeup
serial8250 serial8250.1: preparing suspend, may wakeup
serial8250 serial8250.2: preparing suspend, may wakeup
platform omap2-nand: preparing suspend
platform musb_hdrc: preparing suspend
platform smsc911x.0: preparing suspend
platform smsc911x.1: preparing suspend
platform omap2_mcspi.1: preparing suspend
platform omap2_mcspi.2: preparing suspend
platform omap2_mcspi.3: preparing suspend
platform omap2_mcspi.4: preparing suspend
arm-pmu arm-pmu.0: preparing suspend
platform omap_rng: preparing suspend
platform omapfb: preparing suspend
twl4030_gpio twl4030_gpio: preparing suspend
mmci-omap-hs mmci-omap-hs.0: preparing suspend
mmci-omap-hs mmci-omap-hs.1: preparing suspend
twl_reg twl_reg.17: preparing suspend
twl_reg twl_reg.18: preparing suspend
twl_reg twl_reg.19: preparing suspend
twl4030_usb twl4030_usb: preparing suspend, may wakeup
twl_reg twl_reg.6: preparing suspend
serial8250 serial8250: preparing suspend
mmcblk mmc0:fb2a: legacy suspend
serial8250 serial8250: suspend
i2c i2c-3: suspend
twl_reg twl_reg.6: suspend
twl4030_usb twl4030_usb: suspend, may wakeup
twl_reg twl_reg.19: suspend
twl_reg twl_reg.18: suspend
twl_reg twl_reg.17: suspend
mmci-omap-hs mmci-omap-hs.1: suspend
mmci-omap-hs mmci-omap-hs.0: suspend
twl4030_gpio twl4030_gpio: suspend
dummy 1-004b: suspend
dummy 1-004a: suspend
dummy 1-0049: suspend
twl 1-0048: suspend, may wakeup
i2c i2c-1: suspend
platform omapfb: suspend
platform omap_rng: suspend
arm-pmu arm-pmu.0: suspend
platform omap2_mcspi.4: suspend
platform omap2_mcspi.3: suspend
platform omap2_mcspi.2: suspend
platform omap2_mcspi.1: suspend
platform smsc911x.1: suspend
platform smsc911x.0: suspend
platform musb_hdrc: suspend
platform omap2-nand: suspend
serial8250 serial8250.2: suspend, may wakeup
serial8250 serial8250.1: suspend, may wakeup
serial8250 serial8250.0: suspend, may wakeup
platform overo_lcd: suspend
i2c_omap i2c_omap.3: suspend
i2c_omap i2c_omap.1: suspend
PM: suspend of devices complete after 201.965 msecs
serial8250 serial8250: LATE suspend
i2c i2c-3: LATE suspend
twl_reg twl_reg.6: LATE suspend
twl4030_usb twl4030_usb: LATE suspend, may wakeup
twl_reg twl_reg.19: LATE suspend
twl_reg twl_reg.18: LATE suspend
twl_reg twl_reg.17: LATE suspend
mmci-omap-hs mmci-omap-hs.1: LATE suspend
mmci-omap-hs mmci-omap-hs.0: LATE suspend
twl4030_gpio twl4030_gpio: LATE suspend
dummy 1-004b: LATE suspend
dummy 1-004a: LATE suspend
dummy 1-0049: LATE suspend
twl 1-0048: LATE suspend, may wakeup
i2c i2c-1: LATE suspend
platform omapfb: LATE suspend
platform omap_rng: LATE suspend
arm-pmu arm-pmu.0: LATE suspend
platform omap2_mcspi.4: LATE suspend
platform omap2_mcspi.3: LATE suspend
platform omap2_mcspi.2: LATE suspend
platform omap2_mcspi.1: LATE suspend
platform smsc911x.1: LATE suspend
platform smsc911x.0: LATE suspend
platform musb_hdrc: LATE suspend
platform omap2-nand: LATE suspend
serial8250 serial8250.2: LATE suspend, may wakeup
serial8250 serial8250.1: LATE suspend, may wakeup
serial8250 serial8250.0: LATE suspend, may wakeup
platform overo_lcd: LATE suspend
i2c_omap i2c_omap.3: LATE suspend
i2c_omap i2c_omap.1: LATE suspend
PM: late suspend of devices complete after 103.088 msecs
Successfully put all powerdomains to target state
i2c_omap i2c_omap.1: EARLY resume
i2c_omap i2c_omap.3: EARLY resume
platform overo_lcd: EARLY resume
serial8250 serial8250.0: EARLY resume
serial8250 serial8250.1: EARLY resume
serial8250 serial8250.2: EARLY resume
platform omap2-nand: EARLY resume
platform musb_hdrc: EARLY resume
platform smsc911x.0: EARLY resume
platform smsc911x.1: EARLY resume
platform omap2_mcspi.1: EARLY resume
platform omap2_mcspi.2: EARLY resume
platform omap2_mcspi.3: EARLY resume
platform omap2_mcspi.4: EARLY resume
arm-pmu arm-pmu.0: EARLY resume
platform omap_rng: EARLY resume
platform omapfb: EARLY resume
i2c i2c-1: EARLY resume
twl 1-0048: EARLY resume
dummy 1-0049: EARLY resume
dummy 1-004a: EARLY resume
dummy 1-004b: EARLY resume
twl4030_gpio twl4030_gpio: EARLY resume
mmci-omap-hs mmci-omap-hs.0: EARLY resume
mmci-omap-hs mmci-omap-hs.1: EARLY resume
twl_reg twl_reg.17: EARLY resume
twl_reg twl_reg.18: EARLY resume
twl_reg twl_reg.19: EARLY resume
twl4030_usb twl4030_usb: EARLY resume
twl_reg twl_reg.6: EARLY resume
i2c i2c-3: EARLY resume
serial8250 serial8250: EARLY resume
PM: early resume of devices complete after 97.625 msecs
i2c_omap i2c_omap.1: resume
i2c_omap i2c_omap.3: resume
platform overo_lcd: resume
serial8250 serial8250.0: resume
serial8250 serial8250.1: resume
serial8250 serial8250.2: resume
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(garbage string...)
The problem is releated to no_debug_console option.
Michael Trimarchi
Thanks,
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