linux 3.3 from testing - fully updated from test repo. I had plugged my cell phone in to usb - a few times in and out. After unplugging, I closed laptop lid - the sleep light which normally flashes then goes steady to indicate laptop is sleeping did not. I opened lid - and found khubd process at 100% cpu. In earlier kernels there were some problems with usb if I attempted to sleep a laptop with a USB device plugged in - but i thought there were some fixes to this problem. Anyway - this is what got recorded in system log: Where is the preferred place to report this? thanks! gene./ =========== system log for khubd problem ============================ Mar 20 18:08:55 lap3 kernel: [75845.892579] EXT4-fs (dm-0): re-mounted. Opts: commit=0 Mar 20 18:08:57 lap3 kernel: [75848.292547] PM: Syncing filesystems ... done. Mar 20 18:08:57 lap3 kernel: [75848.298398] PM: Preparing system for mem sleep Mar 20 18:09:19 lap3 kernel: [75849.834400] Freezing user space processes ... (elapsed 0.01 seconds) done. Mar 20 18:09:19 lap3 kernel: [75849.847519] Freezing remaining freezable tasks ... Mar 20 18:09:19 lap3 kernel: [75869.819451] Freezing of tasks failed after 20.01 seconds (1 tasks refusing to freeze, wq_busy=0 ): Mar 20 18:09:19 lap3 kernel: [75869.819457] khubd R running task 0 91 2 0x00000000 Mar 20 18:09:19 lap3 kernel: [75869.819459] ffff88030a4bda48 ffffffff8146ed06 ffffffff812f5dcc ffffffff816dba22 Mar 20 18:09:19 lap3 kernel: [75869.819462] ffff88030a420800 ffff88030a4bdfd8 ffff88030a4bdfd8 ffff88030a4bdfd8 Mar 20 18:09:19 lap3 kernel: [75869.819465] ffff880306188000 ffff88030a420800 ffffffff8189e150 0000000000000030 Mar 20 18:09:19 lap3 kernel: [75869.819467] Call Trace: Mar 20 18:09:19 lap3 kernel: [75869.819473] [<ffffffff8146ed06>] ? __schedule+0x436/0x910 Mar 20 18:09:19 lap3 kernel: [75869.819476] [<ffffffff812f5dcc>] ? vt_console_print+0x2cc/0x3b0 Mar 20 18:09:19 lap3 kernel: [75869.819479] [<ffffffff81050e77>] ? __call_console_drivers+0x97/0xb0 Mar 20 18:09:19 lap3 kernel: [75869.819481] [<ffffffff81079482>] ? up+0x32/0x50 Mar 20 18:09:19 lap3 kernel: [75869.819483] [<ffffffff81051159>] ? _call_console_drivers+0x49/0x70 Mar 20 18:09:19 lap3 kernel: [75869.819485] [<ffffffff8146f602>] preempt_schedule_irq+0x52/0x80 Mar 20 18:09:19 lap3 kernel: [75869.819488] [<ffffffff81470866>] retint_kernel+0x26/0x30 Mar 20 18:09:19 lap3 kernel: [75869.819491] [<ffffffff81060924>] ? lock_timer_base.isra.32+0x64/0x70 Mar 20 18:09:19 lap3 kernel: [75869.819493] [<ffffffff81060b32>] del_timer+0x42/0x150 Mar 20 18:09:19 lap3 kernel: [75869.819501] [<ffffffffa0685e25>] ? bt_printk+0x55/0x60 [bluetooth] Mar 20 18:09:19 lap3 kernel: [75869.819505] [<ffffffffa066afc6>] hci_conn_del+0x26/0x230 [bluetooth] Mar 20 18:09:19 lap3 kernel: [75869.819508] [<ffffffffa066b240>] hci_conn_hash_flush+0x70/0xc0 [bluetooth] Mar 20 18:09:19 lap3 kernel: [75869.819511] [<ffffffffa0667121>] hci_dev_do_close+0xa1/0x2c0 [bluetooth] Mar 20 18:09:19 lap3 kernel: [75869.819515] [<ffffffffa066922b>] hci_unregister_dev+0x5b/0x170 [bluetooth] Mar 20 18:09:19 lap3 kernel: [75869.819517] [<ffffffffa03c1c80>] btusb_disconnect+0x60/0xd0 [btusb] Mar 20 18:09:19 lap3 kernel: [75869.819529] [<ffffffffa00111e2>] usb_unbind_interface+0x52/0x180 [usbcore] Mar 20 18:09:19 lap3 kernel: [75869.819533] [<ffffffff81313e2c>] __device_release_driver+0x7c/0xe0 Mar 20 18:09:19 lap3 kernel: [75869.819535] [<ffffffff81313ebc>] device_release_driver+0x2c/0x40 Mar 20 18:09:19 lap3 kernel: [75869.819536] [<ffffffff81313961>] bus_remove_device+0xe1/0x120 Mar 20 18:09:19 lap3 kernel: [75869.819539] [<ffffffff81311510>] device_del+0x120/0x1a0 Mar 20 18:09:19 lap3 kernel: [75869.819544] [<ffffffffa000ef6f>] usb_disable_device+0xaf/0x1d0 [usbcore] Mar 20 18:09:19 lap3 kernel: [75869.819548] [<ffffffffa00073f8>] usb_disconnect+0x98/0x130 [usbcore] Mar 20 18:09:19 lap3 kernel: [75869.819553] [<ffffffffa0009296>] hub_thread+0xa56/0x12e0 [usbcore] Mar 20 18:09:19 lap3 kernel: [75869.819557] [<ffffffff81073d00>] ? abort_exclusive_wait+0xb0/0xb0 Mar 20 18:09:19 lap3 kernel: [75869.819561] [<ffffffffa0008840>] ? usb_remote_wakeup+0x40/0x40 [usbcore] Mar 20 18:09:19 lap3 kernel: [75869.819563] [<ffffffff810733c3>] kthread+0x93/0xa0 Mar 20 18:09:19 lap3 kernel: [75869.819566] [<ffffffff81472464>] kernel_thread_helper+0x4/0x10 Mar 20 18:09:19 lap3 kernel: [75869.819568] [<ffffffff81073330>] ? kthread_freezable_should_stop+0x70/0x70 Mar 20 18:09:19 lap3 kernel: [75869.819570] [<ffffffff81472460>] ? gs_change+0x13/0x13 Mar 20 18:09:19 lap3 kernel: [75869.819581] Mar 20 18:09:19 lap3 kernel: [75869.819581] Restarting kernel threads ... done. Mar 20 18:09:19 lap3 kernel: [75869.819641] Restarting tasks ... done. Mar 20 18:09:19 lap3 kernel: [75869.829806] sdhci-pci 0000:0d:00.0: could not set regulator OCR (-22) Mar 20 18:09:19 lap3 kernel: [75869.829857] video LNXVIDEO:00: Restoring backlight state Mar 20 18:09:19 lap3 kernel: [75869.865629] sdhci-pci 0000:0d:00.0: could not set regulator OCR (-22) Mar 20 18:09:19 lap3 kernel: [75869.899151] sdhci-pci 0000:0d:00.0: could not set regulator OCR (-22) Mar 20 18:09:19 lap3 kernel: [75869.932325] sdhci-pci 0000:0d:00.0: could not set regulator OCR (-22) Mar 20 18:09:20 lap3 kernel: [75870.954441] EXT4-fs (sdb1): re-mounted. Opts: commit=0 Mar 20 18:09:20 lap3 kernel: [75870.956487] EXT4-fs (sda6): re-mounted. Opts: commit=0 Mar 20 18:09:20 lap3 kernel: [75870.958144] EXT4-fs (sdb2): re-mounted. Opts: commit=0 Mar 20 18:09:20 lap3 kernel: [75871.182979] EXT4-fs (dm-0): re-mounted. Opts: commit=0 Mar 20 18:09:20 lap3 NetworkManager[955]: <info> wake requested (sleeping: yes enabled: yes) Mar 20 18:09:20 lap3 NetworkManager[955]: <info> waking up and re-enabling... Mar 20 18:09:20 lap3 NetworkManager[955]: <info> (eth0): now managed Mar 20 18:09:20 lap3 NetworkManager[955]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 2 0 2]
