FC3 Irq Conflicts on Laptop

From: John (picomp314_at_gmail.com)
Date: 01/31/05

  • Next message: DMWJAG_at_netscape.net: "Re: Fedora3 installation" 
    Date: Sun, 30 Jan 2005 19:51:19 -0600
To: fedora-list@redhat.com

    I first noticed this problem when I first got a PCMCIA atheros based
    wireless card to work. The problem begins whenever I start the wireless
    card and then plug in an external USB 2.0 hard drive, mount it, and then
    begin browsing the the drive using nautilus, xmms, etc... A quick look
    at 'top' shows the logging facilities in FC3, klogd and syslogd, taking
    up almost all of the cpu. I then look at the /var/log/messages log in
    which i find that the error

    serial8250: irq 11 has too much work

    is being added to the file at an incredible rate. This of course spurs
    me to check the IRQs in proc...

    cat /proc/interrupts
    CPU0
    0: 1640085 XT-PIC timer
    1: 1403 XT-PIC i8042
    2: 0 XT-PIC cascade
    9: 2 XT-PIC acpi
    11: 164675 XT-PIC ohci1394, ALI 5451, ehci_hcd, ohci_hcd, ohci_hcd,
    yenta, yenta, yenta, yenta, ath0, eth0
    12: 685 XT-PIC i8042
    14: 33533 XT-PIC ide0
    15: 36 XT-PIC ide1
    NMI: 0 ERR: 6

    I find it completely ridiculous that irq11 is so overloaded while other
    irqs are either empty or almost completely empty. I then look within the
    pcmcia.opts configuration file to see whether I can switch yenta to a
    different interrupt, I instruct the config parser to 'ignore' irq11.
    Changing this and then either restarting pcmcia or simply restarting the
    computer has absolutely no effect upon IRQs.

    So I guess my question essentially spurs from something that I once read
    that seemed to suggest to me that pcmcia.opts is not the first file to
    be parsed, it is overridden by settings somewhere else. Which
    essentially boils down to this; where can I definitively set the irq
    used by pcmcia?

    Thanks in advance
    -John Degenstein 

    -- 
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list
  • Next message: DMWJAG_at_netscape.net: "Re: Fedora3 installation"

    Relevant Pages

    • Re: 2.6.24-rc4-mm1 and Very Slow PCMCIA Compact Flash
      ... I normally use a USB-2 memory card reader but I also have a PCMCIA ... Yenta: Using CSCINT to route CSC interrupts to PCI ... pcmcia: parent PCI bridge Memory window: 0xe0100000 - 0xe17fffff ...
      (Linux-Kernel)
    • Re: 2.5/2.6 PCMCIA Issues
      ... > The symptoms are that insertion of a PCMCIA or Cardbus card causes the ... I suspect that i82365 should just quit by default if a yenta ... controller has already been found. ... even tries to probe for the ports that are in use. ...
      (Linux-Kernel)
    • Re: [SLE] SuSE 9.1 "live CD" wont install :o(
      ... ** Reply to message from Anders Johansson on Thu, ... > A yenta is a match maker. ... Still hangs at "Starting PCMCIA." ...
      (SuSE)
    • PCMCIA Oops (was Re: 2.6.12-rc1-mm3)
      ... however, if I boot with no card inserted, ... happily used it for six days or so, PCMCIA and all, although there was ... Yenta: Using CSCINT to route CSC interrupts to PCI ... Yenta TI: socket 0001:10:13.0, mfunc 0x00001002, devctl 0x60 ...
      (Linux-Kernel)