Arch Linux

freebullets

Member

Registered: 2011-11-10

Posts: 31

[SOLVED] udevd and upowerd Blocking with Disk Sleep

Both /usr/lib/systemd/systemd-udevd and /usr/lib/upower/upowerd processes are running in disk sleep "D" state and making everything extremely slow to come up on boot (among other things).

I see a bunch of messages like this in the kernel log:

[  979.900319] usb 3-7: USB disconnect, device number 47
[  980.180221] usb 3-7: new high-speed USB device number 48 using xhci_hcd
[  990.405175] uvcvideo: Found UVC 1.00 device HP Truevision HD (05c8:0361)
[ 1000.413189] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 1005.417165] uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26).
[ 1005.417169] uvcvideo: Failed to initialize the device (-5).
[ 1005.417363] usb 3-7: USB disconnect, device number 48
[ 1005.697421] usb 3-7: new high-speed USB device number 49 using xhci_hcd
[ 1015.922342] uvcvideo: Found UVC 1.00 device HP Truevision HD (05c8:0361)
[ 1025.930350] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 1030.934347] uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26).
[ 1030.934353] uvcvideo: Failed to initialize the device (-5).
[ 1030.934580] usb 3-7: USB disconnect, device number 49
[ 1031.214556] usb 3-7: new high-speed USB device number 50 using xhci_hcd
[ 1041.439534] uvcvideo: Found UVC 1.00 device HP Truevision HD (05c8:0361)
[ 1051.447470] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 1056.451450] uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26).
[ 1056.451454] uvcvideo: Failed to initialize the device (-5).
[ 1056.451684] usb 3-7: USB disconnect, device number 50
[ 1056.731689] usb 3-7: new high-speed USB device number 51 using xhci_hcd
[ 1066.956609] uvcvideo: Found UVC 1.00 device HP Truevision HD (05c8:0361)
[ 1076.964600] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 1081.087868] INFO: task systemd-udevd:344 blocked for more than 120 seconds.
[ 1081.087873]       Not tainted 4.1.2-2-ARCH #1
[ 1081.087874] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1081.087875] systemd-udevd   D ffff880253ff7c18     0   344    328 0x00000004
[ 1081.087880]  ffff880253ff7c18 ffff880255a48000 ffff880097dedbb0 ffff880253ff7c08
[ 1081.087882]  ffff880253ff8000 ffff88025556a8f4 ffff880097dedbb0 00000000ffffffff
[ 1081.087884]  ffff88025556a8f8 ffff880253ff7c38 ffffffff81587917 ffff88025556a8f0
[ 1081.087887] Call Trace:
[ 1081.087894]  [<ffffffff81587917>] schedule+0x37/0x90
[ 1081.087897]  [<ffffffff81587ce5>] schedule_preempt_disabled+0x15/0x20
[ 1081.087899]  [<ffffffff81589225>] __mutex_lock_slowpath+0xd5/0x150
[ 1081.087901]  [<ffffffff815892bb>] mutex_lock+0x1b/0x30
[ 1081.087942]  [<ffffffffa009d234>] product_show+0x24/0x60 [usbcore]
[ 1081.087952]  [<ffffffff813ef630>] dev_attr_show+0x20/0x60
[ 1081.087956]  [<ffffffff8125b39b>] sysfs_kf_seq_show+0xbb/0x150
[ 1081.087959]  [<ffffffff81259d00>] kernfs_seq_show+0x20/0x30
[ 1081.087962]  [<ffffffff812057fd>] seq_read+0xed/0x3d0
[ 1081.087964]  [<ffffffff8125a7dd>] kernfs_fop_read+0x10d/0x170
[ 1081.087967]  [<ffffffff811e03c7>] __vfs_read+0x37/0x100
[ 1081.087972]  [<ffffffff8128312e>] ? security_file_permission+0x8e/0xa0
[ 1081.087974]  [<ffffffff811e0d37>] vfs_read+0x87/0x140
[ 1081.087976]  [<ffffffff811e1b49>] SyS_read+0x59/0xd0
[ 1081.087980]  [<ffffffff8158b56e>] system_call_fastpath+0x12/0x71

I tried blacklisting the uvcvideo module, but that didn't solve the problem. I don't know if the udevd thing and camera are related. Could it be a hardware issue? Loose cable?

Edit: I'm pretty sure this is a hardware issue. Please ignore.

Last edited by freebullets (2015-07-26 03:43:15)