It looks like https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812087
Can you rebuild pcscd with hotplug debug enabled. No need to install pcscd so you can't break your installation. 1. Get the source code of pcsc-lite, for example from https://alioth.debian.org/frs/?group_id=30105&release_id=2019#pcsclite-_1.8.15 -title-content 2. install the build dependencies using: $ sudo apt-get build-dep pcscd 3. edit the file PCSC/src/hotplug_libudev.c and change the line 66 from #undef DEBUG_HOTPLUG to #define DEBUG_HOTPLUG 4. configure pcsc-lite using "./configure" 5. run pcscd using: $ sudo ./src/pcscd -dfa 6. try to reproduce the 100% CPU consumption problem This may generate a lot of logs if the problem is with libudev. ** Bug watch added: Debian Bug tracker #812087 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812087 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1551897 Title: Excessive CPU utilization To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
