Bug#889110: udev: extremely high cpu usage (overheats notebook after a minute of use)

[Alex Henry]

Here's the "bluez" issue report
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=889111

Hopefully the maintainers for both packages can communicate to identify
responsibilities and solve the issue. Thank you!

On 2 February 2018 at 01:36, Alex Henry <tukkek at gmail.com> wrote:

> After reading this thread I have managed to solve the issue
> https://bbs.archlinux.org/viewtopic.php?id=232890
>
> All it took was for me to remove the "bluetooth" package via aptitude,
> which depends on "bluez" - I will create an appropriate bug report for that
> package as well.
>
> On 2 February 2018 at 01:12, Alex Henry <tukkek at gmail.com> wrote:
>
>> Package: udev
>> Version: 236-3
>> Severity: important
>>
>> Hello it's been a while since I update my Debian (testing) packages for
>> my laptop computer
>> but after updating all of them today it has been rendered unusable for
>> all intents and
>> purposes. The main issue is a process tree (systemd-udevd) hangs all my
>> CPUs, at least
>> one in 100% and the others at 50% or more consistently, non-stop.
>>
>> This causes my laptop to overheat anywhere between a minute or two
>> minutes of use.
>> The only way I'm able to write this is by issuing STOP signals to suspend
>> the processes
>> but it only lasts a couple minutes before it starts again on its own.
>> Needless to say,
>> this isn't what systemd should behave like and I can't even keep issuing
>> STOP long enough
>> for anything other than writing this message. My computer is practically
>> unusable at this
>> point unless I manually issue stop signals every couple of minutes before
>> it overheats.
>>
>> I have tens of thousands of lines like this when I run ""udevadm monitor
>> -k":
>>
>> KERNEL[675.883845] bind     /devices/pci0000:00/0000:00:1
>> d.0/usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0 (usb)
>> KERNEL[675.884171] unbind   /devices/pci0000:00/0000:00:1
>> d.0/usb2/2-1/2-1.6/2-1.6.2/2-1.6.2:1.0 (usb)
>>
>> Pleae consider elevating this issue's priority to critical. In no way the
>> package in this current
>> state should hit stable for obvious reasons, even if they're not on an
>> overheating-prone machine.
>>
>> -- Package-specific info:
>>
>> -- System Information:
>> Debian Release: buster/sid
>>   APT prefers testing
>>   APT policy: (500, 'testing')
>> Architecture: amd64 (x86_64)
>>
>> Kernel: Linux 4.14.0-3-amd64 (SMP w/4 CPU cores)
>> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
>> LANGUAGE=en_US:en (charmap=UTF-8)
>> Shell: /bin/sh linked to /usr/bin/dash
>> Init: systemd (via /run/systemd/system)
>> LSM: AppArmor: enabled
>>
>> Versions of packages udev depends on:
>> ii  adduser      3.116
>> ii  libacl1      2.2.52-3+b1
>> ii  libblkid1    2.30.2-0.3
>> ii  libc6        2.26-4
>> ii  libkmod2     25-1
>> ii  libselinux1  2.7-2
>> ii  libudev1     236-3
>> ii  lsb-base     9.20170808
>> ii  procps       2:3.3.12-3
>> ii  util-linux   2.30.2-0.3
>>
>> udev recommends no packages.
>>
>> udev suggests no packages.
>>
>> Versions of packages udev is related to:
>> ii  systemd  236-3
>>
>> -- no debconf information
>>
>
>
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