Scott Long wrote:
All,
Attached is my first cut at addressing the problems described in this
thread. As I discussed earlier, the VM syncer thread is likely starving
the USB interrupt thread. This causes the shared usb+network
interrupt to remain masked, preventing network interrupts from being
delivered,
and thus triggering watchdog timeouts.
Just to be clear, has it been established that the problem only occurs
when em is sharing an interrupt? I have a lot of production machines
using the PDSMi board, which is one of the boards that the problem was
noticed on, however i do not share any irqs, i always disable USB in the
BIOS.
# vmstat -i
interrupt total rate
irq16: em0 13001181 7
irq19: atapci0 76559511 42
cpu0: timer 3643365617 1999
cpu1: timer 3643365610 1999
Total 7376291919 4048
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