Re: FreeBSD and the Rose Attack / NewDawn

gandalf_at_digital.net
Date: 05/13/05

  • Next message: Matt Ruzicka: "Re: **net** Re: Outbound TCP issue, potentially related to'FreeBSD-SA-05:08.kmem [REVISED]'" 
    Date: Fri, 13 May 2005 11:00:00 -0500 (GMT-05:00)
To: Mike Silbersack <silby@silby.com>

    Greetings and Salutations:

    From: Mike Silbersack <silby@silby.com>
    > But on another laptop with the same processor, 8000 pps could effectively
    > freeze it. We believe this is because the network card on that machine
    > shares an IRQ with the sound card, making interrupt processing very
    > expensive.

    The sound card on my laptop is not enabled. Causes too many messages when I boot up and overwhelms the dmesg log file when I use the sound driver :
    pcm0: <ESS Technology Maestro-2> port 0xf800-0xf8ff irq 5 at device 8.0 on pci0 (4p/1r/0vchannels duplex default)

    > So, test out my attached patch with varying settings of maxfragspersecond
    > and see if it makes any difference for you.

    I attempted to apply the patch, but I think the date on my in_pcb.c is incorrect. What do I do to correct?:
    # ls -al /usr/src/sys/netinet/in_pcb.c
    -rw-r--r-- 1 root wheel 32712 Mar 28 06:29 /usr/src/sys/netinet/in_pcb.c
    GandalfBSD# patch < ip_maxfragspersecond.patch
    Hmm... Looks like a unified diff to me...
    The text leading up to this was:
    --------------------------
    |diff -u -r /usr/src/sys.old/netinet/in_pcb.c /usr/src/sys/netinet/in_pcb.c
    |--- /usr/src/sys.old/netinet/in_pcb.c Sun Apr 17 18:05:05 2005
    |+++ /usr/src/sys/netinet/in_pcb.c Thu May 12 21:47:39 2005
    --------------------------
    File to patch: ^C#
    #

    Thanks,
    Ken

    ------------------------------------------------------------------
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  • Next message: Matt Ruzicka: "Re: **net** Re: Outbound TCP issue, potentially related to'FreeBSD-SA-05:08.kmem [REVISED]'"

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