On Wed, 21 May 2025 03:25:03 -0700 Saurabh Sengar wrote: > The MANA driver's probe registers netdevice via the following call chain: > > mana_probe() > register_netdev() > register_netdevice() > > register_netdevice() calls notifier callback for netvsc driver, > holding the netdev mutex via netdev_lock_ops(). > > Further this netvsc notifier callback end up attempting to acquire the > same lock again in dev_xdp_propagate() leading to deadlock. > > netvsc_netdev_event() > netvsc_vf_setxdp() > dev_xdp_propagate() > > This deadlock was not observed so far because net_shaper_ops was never set,
The lock is on the VF, I think you meant to say that no device you use in Azure is ops locked? There's also the call to netvsc_register_vf() on probe path, please fix or explain why it doesn't need locking in the commit message. -- pw-bot: cr
