Re: ksoftirqd uses 99% CPU triggered by network traffic (maybe RLT-8139 related)

From: Robert Olsson (Robert.Olsson_at_data.slu.se)
Date: 07/30/04

  • Next message: Robert Olsson: "Re: ksoftirqd uses 99% CPU triggered by network traffic (maybe RLT-8139 related)" 
    Date:	Fri, 30 Jul 2004 16:05:55 +0200
To: Pasi Sjoholm <ptsjohol@cc.jyu.fi>

    Pasi Sjoholm writes:

    > I don't remember if I have said this but when the ksoftirqd has started to
    > take all the cpu-time there is no way to stop it excluding booting
    > computer. You can kill or stop all the processes which are taking your
    > cpu-time (ie. source compiling) but network wont start to work or neither
    > there is no free cpu-time for use because ksoftirqd won't stop eating it.

     No you didn't then it seems you are hit by some bug. Have the bug happen.
     Kill userland processes like as you did. Try find out what's running. I would
     look in /proc/interrupt /proc/net/softnet_stat /proc/net/dev or maybe best to
     take a profile if possible or Magic SysRq to find out what's looping. Also try
     ifconfig down.

     Cheers.
                                                    --ro
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

  • Next message: Robert Olsson: "Re: ksoftirqd uses 99% CPU triggered by network traffic (maybe RLT-8139 related)"

    Relevant Pages

    • Re: kernel allows loadkeys to be used by any user, allowing for local root compromise
      ... Yes, good idea, but we already are using it for soft reboot. ... using the idea of remapping backspace so others can't kill their screen saver ... We usually don't want to kill some professor's pine ... send the line "unsubscribe linux-kernel" in ...
      (Linux-Kernel)
    • Re: Server Roles Process administrators
      ... You can give MS PSS a call and if it is ... Andrew J. Kelly SQL MVP ... I think is a bug in the tools but I need a confirmation ... If we use command Kill in query Analyser no problem. ...
      (microsoft.public.sqlserver.security)
    • Re: forkbombing Linux distributions
      ... > small forkbomb, I saw that either the forkbomb process, or the parent ... > would be chosen to kill? ... > processes are killed (like kernel threads or other daemons), ... To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ ...
      (Linux-Kernel)
    • Re: [BUG] signal: multithread program returns with wrong errno on receiving SIGSTOP
      ... I found a bug on signal subsystem. ... $ kill -STOP 9685 ... `./mt-wrong-errno' returns with wrong errno 512 means ERESTARTSYS. ...
      (Linux-Kernel)
    • Re: Uber Jackals?
      ... uber-jackals, and looking back on the sequence of events, there was ... There was no flaw with my character: ... It's not a bug. ... Monsters get stronger the more you kill. ...
      (rec.games.roguelike.adom)