pcscd, sun java, 100% CPU usage
Tod Merley
todbot88 at gmail.com
Wed Jan 2 11:30:34 UTC 2008
On Jan 1, 2008 9:51 PM, Jeff Krebs <jkrebs at tconl.com> 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
>
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Hi again Jeff Krebs!
Just a thought (and a bit lazy of a hack) but you could nice pcscd (man nice).
Have Fun!
Tod
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