This is kernel 3.9.9-302.fc19.x86_64. I plugged in a BN Nook (a usb mass storage device), used it, and ejected it. This makes suspend fail: [50135.265514] PM: Entering freeze sleep [50135.265517] Suspending console(s) (use no_console_suspend to debug) [50135.287724] sd 7:0:0:0: [sdb] Synchronizing SCSI cache [50135.290413] sd 7:0:0:0: [sdb] [50135.290415] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [50135.290418] sd 7:0:0:0: [sdb] [50135.290422] Sense Key : Not Ready [current] [50135.290424] sd 7:0:0:0: [sdb] [50135.290429] Add. Sense: Medium not present [50135.290448] dpm_run_callback(): scsi_bus_suspend+0x0/0x40 returns -5 [50135.290454] PM: Device 7:0:0:0 failed to suspend async: error -5 [50138.486917] PM: Some devices failed to suspend [50138.525007] PM: resume of devices complete after 38.132 msecs [50138.525315] pci_pm_runtime_suspend(): hcd_pci_runtime_suspend+0x0/0x50 returns -16 [50138.536357] PM: Finishing wakeup. Experimenting a bit, here's what happens. - Plug in device (so it's working). Suspend works. - eject /dev/sdb. Suspend fails. - Physically unplug the device. Suspend works again. This is actually a real issue -- my laptop can continue to power its usb port while suspended, and the Nook is functional (and charges) while plugged in but ejected, but I can't suspend my laptop so it can charge my Nook. Curiously, this issue seems to be Nook-specific. I can't reproduce it with a Corsair Flash Voyager. --Andy
