[Bug 156596] [ehci] Extremely high interrupt rate on ehci/uhci IRQ16 80% cpu utilization on CPU0

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=156596

Tobias Berner <tcberner at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |tcberner at gmail.com

--- Comment #14 from Tobias Berner <tcberner at gmail.com> ---
Hi

I think I got bitten by the same bug -- monitor detached from dvi:

interrupt                          total       rate
irq16: ehci0                   465310134     142166
irq23: ehci1                        8786          2
cpu0:timer                       1485088        453
irq264: mps0                      387611        118
irq265: hdac0                          7          0
irq266: xhci0                      28208          8
irq268: hdac1                        105          0
irq269: igb0:que 0                  8763          2
irq270: igb0:que 1                128669         39
irq271: igb0:que 2               1012967        309
irq272: igb0:que 3                491974        150
irq273: igb0:link                      2          0
irq274: ahci0                          6          0
irq275: ahci1                     551817        168
cpu1:timer                       1482123        452
cpu7:timer                       1475647        450
cpu6:timer                       1477623        451
cpu2:timer                       1555822        475
cpu4:timer                       2821875        862
cpu3:timer                       1502125        458
cpu5:timer                       1426102        435
Total                          481155454     147007



FreeBSD odo.firefly 11.0-CURRENT FreeBSD 11.0-CURRENT #6 r277147: Tue Jan 13
22:15:03 CET 2015     Tobias at odo.firefly:/usr/obj/usr/src/sys/ODO  amd64

dev.ehci.0.%desc: Intel Lynx Point USB 2.0 controller USB-B

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