Re: Interrupt storm

On Apr 5, 2005 5:30 PM, John Baldwin <jhb_at_freebsd.org> wrote:
> On Tuesday 29 March 2005 01:35 pm, Jung-uk Kim wrote:
> > On Tuesday 29 March 2005 01:22 pm, Dan Cojocar wrote:
> > > Hello all,
> > >
> > > I noticed the following interrupt storm in my dmesg:
> > >
> > > Interrupt storm detected on "irq11: rl1"; throttling interrupt
> > > source Interrupt storm detected on "irq5: rl0"; throttling
> > > interrupt source
> > >
> > > Here is my vmstat -i:
> > > interrupt                          total       rate
> > > irq0: clk                         128600        199
> > > irq1: atkbd0                        2499          3
> > > irq4: sio0                             2          0
> > > irq5: rl0                         128901        200
> > > irq8: rtc                          82294        127
> > > irq11: rl1                        128902        200
> > > irq12: psm0                        16152         25
> > > irq14: ata0                        12600         19
> > > irq15: ata1                           71          0
> > > Total                             500021        776
> > >
> > > and here is my dmesg:
> > > http://cs.ubbcluj.ro/~dan/dmesg.txt
> > >
> > > I have options DEVICE_POLLING and options HZ=200, i have tested
> > > with greater HZ values like 1000, and without DEVICE_POLLING  but i
> > > have the same storm.
> >
> > Try this:
> >
> > http://docs.freebsd.org/cgi/mid.cgi?200503161154.04555.jkim
> 
> He's not using an APIC so that won't make any difference.
> 
    If I use APIC, I will get "watchdog timeout" as i posted in an old email:
>rl0: watchdog timeout
>rl1: watchdog timeout
>rl0: watchdog timeout
>rl1: watchdog timeout
>rl1: watchdog timeout
>rl1: watchdog timeout
>rl1: watchdog timeout

   Thanks,
             Dan