| 1 |
On Saturday, 30 June 2018 10:28:11 BST Philip Webb wrote: |
| 2 |
> 180626 Rich Freeman wrote: |
| 3 |
> > On Tue, Jun 26, 2018 at 8:58 PM Philip Webb <purslow@××××××××.net> wrote: |
| 4 |
> >> Does anyone know why the latest stable version of Gentoo-sources is |
| 5 |
> >> 4.9.xx ? I installed 4.9.16 , which I continue to use, on 2017-04-06 . |
| 6 |
> >> The tree contains versions of 4.14 4.16 4.17 , but all are still testing. |
| 7 |
> > |
| 8 |
> > I believe that some had been complaining about stability issues with 4.14, |
| 9 |
> > but personally I've been fine with it, and since I have a Ryzen CPU |
| 10 |
> > I want something that has the SMT support enabled ... |
| 11 |
> > I don't know what the Gentoo plans are for 4.14 - |
| 12 |
> > I know they've been avoiding it for a while. |
| 13 |
> > I'm not sure if they ever plan to move to it |
| 14 |
> > or if they're just hoping to skip it entirely. |
| 15 |
> > I think we sb getting a new longterm sometime in the next few months. |
| 16 |
> |
| 17 |
> Well, wonders never cease (smile) : Gentoo-sources-4.14.52 is now stable ! |
| 18 |
> |
| 19 |
> I've emerged it & will probably install it tomorrow. |
| 20 |
> Hopefully, this will also allow me to upgrade to Nvidia-drivers-396.24-r1 . |
| 21 |
> |
| 22 |
> As always, my thanks to the volunteers involved. |
| 23 |
|
| 24 |
Hear, hear! |
| 25 |
|
| 26 |
However, 4.14.52 like all kernels after the 4.9.x series badly break the Dell |
| 27 |
XPS USB WiFi and bluetooth Broadcom chip. :-( |
| 28 |
|
| 29 |
The moment I switch on the darn thing with or without starting net.wlan0 and |
| 30 |
with or without starting bluetooth I get two runaway systemd-udev processes |
| 31 |
chewing up CPU time. Bluetooth does not work at all. |
| 32 |
|
| 33 |
23767 root 20 0 38016 5184 2888 S 40.9 0.1 0:07.35 /lib/ |
| 34 |
systemd/systemd-udevd --daemon |
| 35 |
785 root 20 0 56112 22572 2732 S 26.1 0.6 0:03.50 /lib/ |
| 36 |
systemd/systemd-udevd --daemon |
| 37 |
|
| 38 |
udev appears to be fighting against the kernel by binding and unbinding the |
| 39 |
Broadcom devices: |
| 40 |
|
| 41 |
KERNEL[6760.138491] bind /devices/pci0000:00/0000:00:1d.0/ |
| 42 |
usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0 (usb) |
| 43 |
KERNEL[6760.138640] unbind /devices/pci0000:00/0000:00:1d.0/ |
| 44 |
usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0 (usb) |
| 45 |
UDEV [6760.139080] bind /devices/pci0000:00/0000:00:1d.0/ |
| 46 |
usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0 (usb) |
| 47 |
KERNEL[6760.143273] bind /devices/pci0000:00/0000:00:1d.0/ |
| 48 |
usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0 (usb) |
| 49 |
KERNEL[6760.143500] unbind /devices/pci0000:00/0000:00:1d.0/ |
| 50 |
usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0 (usb) |
| 51 |
UDEV [6760.143817] unbind /devices/pci0000:00/0000:00:1d.0/ |
| 52 |
usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0 (usb) |
| 53 |
|
| 54 |
which are scrolling by endlessly at V high speed. These are the offending |
| 55 |
devices: |
| 56 |
|
| 57 |
Bus 002 Device 017: ID 413c:8156 Dell Computer Corp. Wireless 370 Bluetooth |
| 58 |
Mini-card |
| 59 |
.. |
| 60 |
Bus 002 Device 014: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of |
| 61 |
BCM2046 Bluetooth) |
| 62 |
|
| 63 |
Killing /lib/systemd/systemd-udevd --daemon causes my USB mouse to no longer |
| 64 |
be recognised. |
| 65 |
|
| 66 |
Is there a clever way of getting out of this race condition and is there a way |
| 67 |
to troubleshoot it further without going into kernel debugging at this stage? |
| 68 |
-- |
| 69 |
Regards, |
| 70 |
Mick |
Archives