Callbacks are only registered in the primary, so do not attempt to
unregister callbacks in secondary processes.
Fixes: 43e463137154 ("vfio: support memory event callbacks")
Cc: sta...@dpdk.org
Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com>
---
lib/librte_eal/linuxapp/eal/eal_vfio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.c
b/lib/librte_eal/linuxapp/eal/eal_vfio.c
index 0516b1597..afc917ab3 100644
--- a/lib/librte_eal/linuxapp/eal/eal_vfio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_vfio.c
@@ -857,7 +857,8 @@ rte_vfio_release_device(const char *sysfs_base, const char
*dev_addr,
/* if there are no active device groups, unregister the callback to
* avoid spurious attempts to map/unmap memory from VFIO.
*/
- if (vfio_cfg == default_vfio_cfg && vfio_cfg->vfio_active_groups == 0)
+ if (vfio_cfg == default_vfio_cfg && vfio_cfg->vfio_active_groups == 0 &&
+ rte_eal_process_type() != RTE_PROC_PRIMARY)
rte_mem_event_callback_unregister(VFIO_MEM_EVENT_CLB_NAME,
NULL);
--
2.17.1
