Hi John
With your patch and latest qemu-kvm, I can't start guest.
# rpm -q qemu-kvm
qemu-kvm-1.5.3-70.el7.x86_64
# virsh start test
error: Failed to start domain test
error: internal error: unable to execute QEMU command 'query-iothreads':
The command query-iothreads has not been found
On 09/16/2014 08:55 AM, Eric Blake wrote:
On 09/15/2014 06:13 PM, John Ferlan wrote:
> Well I guess it happens to everyone - hopefully only once though...
Yep, the brown bag of shame lets you learn from mistakes rather quickly :)
> The IOThreads code really messed up a few things - git bisection for
> the build is broken as of 5f6ad32c733a3bd158938aecabb0508a434ece95,
> but that's resolved by 938fb12fad6d15c9fdb73f998c4e0ec1e278721f
> which adds the 'niothreadspin && iothreadspin' definitions.
>
> Secondarily it seems things got worse, because guests weren't able to
> be started because of a very bad logic error (<= 0 vs. < 0 and specific
> check that 0 is "OK" (meaning no IOThreads).
>
> How that got by own self testing I'm still not quite sure, but it did
> and it's a mea culpa for that.
>
> Anyway, patch 1 fixes the running issue... Patch 2 fixes some spacing
> issues that Eric pointed out privately (prefer "i + 1" vs.
"i+1").
> Patch 3 just makes sure to use the right cgroup setup/init parameters
> since there is no "iothread0"
>
> John Ferlan (3):
> qemu: Fix iothreads issue
> qemu_cgroup: Adjust spacing around incrementor
> qemu: Fix call in qemuDomainSetNumaParamsLive for virCgroupNewIOThread
Thanks for the fast fixes. I confirm that patch 1 fixes the regression
in starting my dummy transient domain. ACK series.
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Regards
shyu