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Re: vmstat -i shows strange interrupts

From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Wed, 20 Oct 2004 13:41:52 -0700 (PDT)

:Hi there, got it installed :-)
:-- vmstat --
:beast# vmstat -i
:interrupt                   total       rate
:???                             0          0
:stray irq0                      0          0
:stray irq1                      0          0
:stray irq2                      0          0
:stray irq3                      0          0
:stray irq4                      0          0
:stray irq5                      0          0
:mux irq11                   42624         13
:atkbd0 irq1                  3361          1
:psm0 irq12                      0          0
:sio0 irq4                       0          0
:sio1 irq3                       0          0
:ppc0 irq7                       0          0
:clk irq0                   698586        226
:Total                      814148        263
:What's with all the strange stray's? Is this normal? It doesn't seem to 

    Yes, it's normal.  Notice all the counts are 0 ?  The stray interrupts
    are placeholders for unassigned and alternative irq vectors.   This is
    especially true for systems with APICs because we use a different vector
    number for SLOW vs FAST interrupts on the same irq.

:be affecting much but then it doesn't look quite right either. Where's 
:my fxp0 card too! Is this perhaps an ACPI issue? All I can think of 

    The fxp0 card is in the 'mux' slot for irq 11, along with other cards
    sharing that interrupt.  vmstat -I is simply not traversing the MUX list
    or the sysctl isn't generating it, or something like that.

					Matthew Dillon 

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