[Bug 1788018] Re: udevd keeps binding and unbinding some usb device und uses all cpu
** Changed in: linux Status: Confirmed => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788018 Title: udevd keeps binding and unbinding some usb device und uses all cpu To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1788018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1788018] Re: udevd keeps binding and unbinding some usb device und uses all cpu
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On 2018-03-06T21:09:45+00:00 mathieutournier wrote:
Created attachment 274593
dmesg
Hi,
I'm currently running ubuntu 18.04 with a 4.15 kernel and i can observe very
high cpu usage to the systemd-udevd deamon.
removing the rule :
ATTR{bInterfaceClass}=="03", ATTR{bInterfaceSubClass}=="01",
ATTR{bInterfaceProtocol}=="02", \
ATTRS{bDeviceClass}=="00", ATTRS{idVendor}=="413c",
ATTRS{bmAttributes}=="e0", \
RUN+="hid2hci --method=dell --devpath=%p", ENV{HID2HCI_SWITCH}="1"
Solved the high CPU usage eventhough my bluetooth card is not available
anymore (as not in hci mode)
It seems that the command hid2hci creates a bind/unbind loop in udev
that is looping trying to set the device in hci mode. (that what udevadm
monitor seems to show, looping from bind to unbind for the device)
I suspect a0085f2510e8976614ad8f766b209448b385492f introduced a
regression (i have not tried to revert it yet).
Please not that there also seem to be a bug in hid2hci.c from bluez l148 :
if (err == 0) {
err = -1;
errno = EALREADY;
}
Correcting this and recompile bluez desn't solve the issue as cpu usage remains
very high.
Using a 4.13 kernel result in a normal CPU usage, this seems a
regression in 4.14.
Other people seems to have the same issue, here is a bug report related to this
:
https://dev.solus-project.com/T5224
Thanks a lot for your support,
Mathieu Tournier
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788018/comments/0
On 2018-05-04T05:57:10+00:00 boro wrote:
I have the very same problem using the same distro (Ubuntu 18.04,
64-bit) on Dell Latitude E5400 laptop. Disabling BT from BIOS or
removing the aforementioned rule solves the problem but leaves BT
unusable.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788018/comments/1
On 2018-05-09T23:02:06+00:00 lucent wrote:
Bus 001 Device 009: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of
BCM2046 Bluetooth)
Bus 001 Device 004: ID 0a5c: Broadcom Corp.
Linux zontar 4.16.0-1-amd64 #1 SMP Debian 4.16.5-1 (2018-04-29) x86_64
GNU/Linux
May 09 15:59:00 hostname upowerd[14610]: unhandled action 'bind' on
/sys/devices/pci:00/:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
May 09 15:59:00 hostname upowerd[14610]: unhandled action 'unbind' on
/sys/devices/pci:00/:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
May 09 15:59:00 hostname upowerd[14610]: unhandled action 'bind' on
/sys/devices/pci:00/:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
May 09 15:59:00 hostname upowerd[14610]: unhandled action 'unbind' on
/sys/devices/pci:00/:00:1a.0/usb1/1-1/1-1.6/1-1.6.2/1-1.6.2:1.0
...repeating...
15632 root 20 0 233136 186656 2664 R 94.1% 4.7% 62:14.67
systemd-udevd
16222 root 20 0 88252 2432 1888 R 35.3% 0.1% 25:21.87
systemd-udevd
Looks like same problem affects this Dell Precision M6500 laptop.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788018/comments/2
On 2018-05-20T07:57:41+00:00 f.dittmer wrote:
I observed the high cpu usage after upgrading from udev-233 to
udev-236/udev-238 on Gentoo Linux. Downgrading back to udev-233 lets me use
newer kernels (currently running 4.15.18) without any problems.
Using DELL Latitude E6400 from 2009, with same Broadcom Bluetooth module as
mentioned above.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788018/comments/3
On 2018-06-13T16:50:40+00:00 rickfharris wrote:
As per https://patchwork.kernel.org/patch/10384111/ editing
97-hid2hci.rules as follows works around the new uevents added to the
kernel in
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1455cf8dbfd06aa7651dcfccbadb7a093944ca65
-ACTION=="remove", GOTO="hid2hci_end"
+ACTION!="add", GOTO="hid2hci_end"
Bluetooth now works with kernels above and below 4.14.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788018/comments/4
On 2018-06-14T00:32:13+00:00 ri
[Bug 1788018] Re: udevd keeps binding and unbinding some usb device und uses all cpu
Marko Muehlberg (markom2), would you be able to confirm the commit from https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1455cf8dbfd06aa7651dcfccbadb7a093944ca65 is the root cause for your issue by testing a revert of it following https://wiki.ubuntu.com/Kernel/KernelBisection ? ** Description changed: It first appeared when I upgraded ubuntu studio to 18.04 udevd started to use all available cpu. - now I'm running ubuntu desktop from a usb key and it's still the same + now I'm running ubuntu desktop from a usb key and it's still the same udevadm monitor returns: KERNEL[2512.539491] unbind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) UDEV [2512.540201] bind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) KERNEL[2512.566574] bind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) KERNEL[2512.566866] unbind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) UDEV [2512.567499] unbind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) KERNEL[2512.594050] bind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) KERNEL[2512.594310] unbind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) UDEV [2512.596510] bind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) KERNEL[2512.620736] bind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) KERNEL[2512.624606] unbind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) UDEV [2512.634706] unbind /devices/pci:00/:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0 (usb) ... + WORKAROUND: Remove file: + /lib/udev/rules.d/97-hid2hci.rules + ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: udev 237-3ubuntu10.3 ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18 Uname: Linux 4.15.0-29-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CasperVersion: 1.394 CustomUdevRuleFiles: 70-snap.core.rules Date: Mon Aug 20 18:54:48 2018 ExecutablePath: /lib/systemd/systemd-udevd LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: Dell Inc. Vostro 3300 ProcEnviron: - LANG=C.UTF-8 - PATH=(custom, no user) + LANG=C.UTF-8 + PATH=(custom, no user) ProcKernelCmdLine: file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/10/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: A01 dmi.board.name: 07JC8T dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA01:bd02/10/2010:svnDellInc.:pnVostro3300:pvrNotSpecified:rvnDellInc.:rn07JC8T:rvrA00:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Vostro 3300 dmi.product.version: Not Specified dmi.sys.vendor: Dell Inc. ** Tags added: bios-outdated-a12 regression-release ** This bug is no longer a duplicate of bug 1759836 systemd-udevd consumes 100% of CPU ** No longer affects: systemd (Ubuntu) ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788018 Title: udevd keeps binding and unbinding some usb device und uses all cpu To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1788018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1788018] Re: udevd keeps binding and unbinding some usb device und uses all cpu
*** This bug is a duplicate of bug 1759836 *** https://bugs.launchpad.net/bugs/1759836 ** This bug has been marked a duplicate of bug 1759836 systemd-udevd consumes 100% of CPU -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788018 Title: udevd keeps binding and unbinding some usb device und uses all cpu To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1788018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1788018] Re: udevd keeps binding and unbinding some usb device und uses all cpu
*** This bug is a duplicate of bug 1759836 *** https://bugs.launchpad.net/bugs/1759836 the bug started at upstream kernel commit 1455cf8dbfd06aa7651dcfccbadb7a093944ca65 ** Bug watch added: Linux Kernel Bug Tracker #199035 https://bugzilla.kernel.org/show_bug.cgi?id=199035 ** Also affects: linux via https://bugzilla.kernel.org/show_bug.cgi?id=199035 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788018 Title: udevd keeps binding and unbinding some usb device und uses all cpu To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1788018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1788018] Re: udevd keeps binding and unbinding some usb device und uses all cpu
I got a workaround by removing /lib/udev/rules.d/97-hid2hci.rules as was mentioned in a comment at https://askubuntu.com/questions/1028883/ubuntu-18-04-systemd-udevd-uses- high-cpu-conflict-with-wifi It seems to be some rule for Bluetooth and touchpads. My touchpad still works, Bluetooth doesn't but that Bluetooth adapter in this laptop has always been very buggy. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788018 Title: udevd keeps binding and unbinding some usb device und uses all cpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1788018] Re: udevd keeps binding and unbinding some usb device und uses all cpu
** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788018 Title: udevd keeps binding and unbinding some usb device und uses all cpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
