On Wed, May 22, 2013 at 12:57:35PM +0800, Amos Kong wrote:
> I try to hotplug 28 * 8 multiple-function devices to guest with
> old host kernel, ioeventfds in host kernel will be exhausted, then
> qemu fails to allocate ioeventfds for blk/nic devices.
>
> It's better to add detail error here.
>
Applied, thanks.
> Signed-off-by: Amos Kong <akong@xxxxxxxxxx>
> ---
> kvm-all.c | 4 ++++
> 1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/kvm-all.c b/kvm-all.c
> index 8222729..3d5f7b7 100644
> --- a/kvm-all.c
> +++ b/kvm-all.c
> @@ -813,6 +813,8 @@ static void kvm_mem_ioeventfd_add(MemoryListener *listener,
> r = kvm_set_ioeventfd_mmio(fd, section->offset_within_address_space,
> data, true, section->size, match_data);
> if (r < 0) {
> + fprintf(stderr, "%s: error adding ioeventfd: %s\n",
> + __func__, strerror(-r));
> abort();
> }
> }
> @@ -843,6 +845,8 @@ static void kvm_io_ioeventfd_add(MemoryListener *listener,
> r = kvm_set_ioeventfd_pio(fd, section->offset_within_address_space,
> data, true, section->size, match_data);
> if (r < 0) {
> + fprintf(stderr, "%s: error adding ioeventfd: %s\n",
> + __func__, strerror(-r));
> abort();
> }
> }
> --
> 1.7.1
--
Gleb.
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