diff options
| author | Amos Kong <akong@redhat.com> | 2013-05-22 12:57:35 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-07-03 10:38:19 +0200 |
| commit | fa4ba923bd539647ace9d70d226a848bd6a89dac (patch) | |
| tree | c0e13b09fdc311891fce46093c942f9ab63fecaa | |
| parent | 1acd5a373905ddb28957842256a038956941f332 (diff) | |
| download | focaccia-qemu-fa4ba923bd539647ace9d70d226a848bd6a89dac.tar.gz focaccia-qemu-fa4ba923bd539647ace9d70d226a848bd6a89dac.zip | |
kvm: add detail error message when fail to add ioeventfd
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. Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
| -rw-r--r-- | kvm-all.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kvm-all.c b/kvm-all.c index c757dd262e..12042f72ae 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -837,6 +837,8 @@ static void kvm_mem_ioeventfd_add(MemoryListener *listener, data, true, int128_get64(section->size), match_data); if (r < 0) { + fprintf(stderr, "%s: error adding ioeventfd: %s\n", + __func__, strerror(-r)); abort(); } } @@ -869,6 +871,8 @@ static void kvm_io_ioeventfd_add(MemoryListener *listener, data, true, int128_get64(section->size), match_data); if (r < 0) { + fprintf(stderr, "%s: error adding ioeventfd: %s\n", + __func__, strerror(-r)); abort(); } } |