On 12:43 Sun 08 Mar 2009, Alan Stern wrote: > On Sat, 7 Mar 2009, Brandon Philips wrote: > > > Have you tried suspending just the two devices plugged into that EHCI > > > controller instead of suspending the entire system? That would make it > > > a lot easier to carry out testing. > > > > I tried to reproduce with s2ram suspend, echo suspend > > > /sys/bus/usb/devices/.../power/level and /sys/power/pm_test levels but none of > > them reproduced it. So, at this point the only way I can reproduce this is with > > a full S4. > > That's a little misleading. Sorry, what I meant by "full" was `echo disk > /sys/power/state` with none in /sys/power/pm_test > Unless I misunderstood your log, the hang occurred _before_ your > system entered S4. In fact, it occurred before the memory image was > written out to the disk. Yes, this is correct. It freezes before the image is written. > > Is there some other method I missed of testing? > > How about echo disk >/sys/power/state with various settings in > /sys/power/disk? First observation: I can't reproduce this bug with console=ttyS0,115200 console=tty0. Everything works great actually. Is writing to the serial port causing just enough delay to hide the bug? /sys/power/disk tests --------------------- testproc # OK test # Unlink after no-IRQ? ... platform # Unlink after no-IRQ? ... reboot # Unlink after no-IRQ? ... shutdown # Unlink after no-IRQ? ... Cheers, Brandon -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
