* Tod Merley (todbot88@xxxxxxxxx) wrote: > On Jan 1, 2008 9:51 PM, Jeff Krebs <jkrebs@xxxxxxxxx> wrote: > > Oddest issue with pcsc. I'm getting 100% CPU usage while running pcscd. > > > > Now to story... > > > > Finally got my CAC Card setup running and working. I'm able to do what > > I need to do with PKI certificates and such. Athena reader, Athena > > driver. Started with java-1.7.0-icedtea. Joy and happiness abounding > > except... > > > > IcedTea just wasn't doing it. CNN video wasn't working. Odds and ends > > borked or not functioning. > > > > Managed to get all SunJava 1.6.0r3 packages built and installed under > > Fedora 8. Even the jdbc and fonts. My machine passed the Java.com test > > and even updated the java applets (hadn't seen that before). Java works > > wonderful, everything seems to function very well. Except... > > > > Now, after removing IcedTea and installing Sun-Java, my CPU is at 100%. > > Top shows pcscd as #1, burning over 91% of the CPU. This is a P4 1.6 > > Ghz, and I have 1.2 G of RAM. I can stop pcscd through the "Services" > > configuration interface (via /usr/sbin/system-config-services). The > > system CPU usage immediately drops to around 7%. Much weeping and > > gnashing of teeth... > > > > Now, the question. What's going on? Why does Java appear to cause a > > race condition in pcscd? I can certainly disable pcscd when I don't > > need it, but when I do need it, will I have to face high CPU usage? > > > > > > Jeff Krebs > > > > -- > > fedora-list mailing list > > fedora-list@xxxxxxxxxx > > To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list > > > > Hi Jeff Krebs! > > I too do not understand what would make the smart card reader manager > go bonkers. Perhaps Sun's java makes it look for the CAC verification > module which perhaps it cannot find? > > The question your e-mail made me ponder is "how can one find out" > "what's going on?". I have found some possible answers. Some I have > heard mentioned in this forum. > > strace - ltrace - lsof ... : > > http://en.wikipedia.org/wiki/Strace (also man strace) > > http://en.wikipedia.org/wiki/Ltrace (also man ltrace) > > http://en.wikipedia.org/wiki/Lsof_%28Unix%29 (also man lsof) > > http://en.wikipedia.org/wiki/Gdb (also man gdb) > > Looking from the Java end: > > http://jamonapi.sourceforge.net/ > > Probably for the developer - The Linux Test Project: > > http://ltp.sourceforge.net/ > > I have never gone so far into finding the actual problem as these > tools can take us. Hopefully someone who has will chime in. > > I would love to hear what you do find and how you found it! > > Good Hunting! > > Tod > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list I did find something after a bit of searching on-line: https://bugzilla.redhat.com/show_bug.cgi?id=374291 I'm not sure that the issue is related to SunJava. The Fedora pcsc-lite is currently at 1.3.3, and there have been five releases since then, culminating in release 1.4.4. On bugzilla, someone mentioned that 1.4.4 took care of the issue; I'll roll my own pcsc-lite RPMs and see if that helps the issue. Jeff Krebs
