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. root@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 ×uV=V=ý_½hþ¼þ¼.?ýR®HlÒÒ¾»®=¾=½´®¿Q*^¼þQ¾99:¾ÒÒýRN÷õt®¨¨:;;T»?ÉQQ·´Ö´Ë\¿véÝÿ (garbage string...)
The problem is releated to no_debug_console option. Michael Trimarchi
Thanks,
-- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
