Interrupt storm detected on "irq17:"; throttling interrupt source



  • Hi.

    I have this log interrupt storm detected on "irq17:"; throttling interrupt source    (dmesg)

    But  this a time, no have proble crashes or reboot….

    Why this message?

    thanks.


  • Netgate Administrator

    What is using irq17? What rate is it running?

    Check the boot log it may be recorded there or run:

    vmstat -i
    

    Steve



  • Hi

    vmstat -i

    interrupt                          total      rate
    irq32: bge0 bge2              576341732      2837
    irq36: bge1 bge3                68845131        338
    irq1: atkbd0                          18          0
    irq16: uhci0                  671054389      3304
    irq17: atapci0                  70958016        349
    irq20: ehci1                      512748          2
    irq21: ehci0                      304681          1
    cpu0:timer                    228814106      1126
    irq264: ciss0                    346144          1
    cpu1:timer                      80027181        394
    cpu6:timer                      7360241        36
    cpu4:timer                      8269382        40
    cpu3:timer                      17402136        85
    cpu5:timer                      81737972        402
    cpu2:timer                      7746460        38
    cpu7:timer                      33571359        165
    Total                        1853291696      9124

    My server have 4 interfaces  but only use 3

    LAN, DMz  with vlan and WAN

    MBUF Usage:  top  10%

    CPU:  top 20%  (snort)    8core

    RAM: top 5%  of  32GB

    DISCO:  180GB  of  5%  use.

    The log  run:    Apr 28 19:00:00 check_reload_status Reloading filter    for 60 minutes.

    And after:  Apr 28 19:00:01 kernel interrupt storm detected on "irq17:"; throttling interrupt source

    Example:

    Apr 28 18:00:01 kernel interrupt storm detected on "irq17:"; throttling interrupt source
    Apr 28 18:00:00 check_reload_status Reloading filter

    Apr 28 17:00:02 kernel interrupt storm detected on "irq17:"; throttling interrupt source
    Apr 28 17:00:00 check_reload_status Reloading filter

    Apr 28 16:00:01 kernel interrupt storm detected on "irq17:"; throttling interrupt source
    Apr 28 16:00:00 check_reload_status Reloading filter

    for time 60 minutes. every.

    NOTE:  Every hour,  PfblockerNG  update.


  • Netgate Administrator

    Try changing the pfBlocker update interval to make sure it is that.

    What hardware are you running on?

    Steve


Log in to reply