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