On Sat, Jun 7, 2014 at 2:28 PM, Peter Grehan <gre...@freebsd.org> wrote:
> Hi Steve,
>> I'm running a FreeBSD guest in bhyve on a FreeBSD host. Both are running
>> FreeBSD CURRENT, r266947. I've gotten this message about 12 times since
>> interrupt storm detected on "irq268:"; throttling interrupt source
>> vmstat -i shows:
>> irq268: ahci1 236514222 839
>> ahci1 is the second disk connected to the system:
>> ahci1: <Intel ICH8 AHCI SATA controller> mem 0xc0002400-0xc00027ff irq 18
>> at device 4.0 on pci0
>> The VM itself runs poudriere and was building a bunch of packages. At the
>> moment, the VM seems to be in a rather odd state. The poudriere jails are
>> running, but not doing anything. Ideas?
> Is this an 8.* host ? I don't believe AHCI has MSI support on that version,
> and AHCI legacy interrupts haven't had a huge amount of testing under load.
> If it is 8.*, I'd recommend using virtio-blk for the block device until we
> can work out what's going wrong.
The KTR trace would be useful to figure out what's happening.
To do that you can compile the host kernel and vmm.ko with the
And when you see the interrupt storm message in the guest you can execute:
sudo ktrdump -cto /tmp/ktrdump.out
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