On Mon, Jun 22, 2015 at 03:42:30PM +0300, Haggai Eran wrote: > An ib_client callback that is called with the lists_rwsem locked only for > read is protected from changes to the IB client lists, but not from > ib_unregister_device() freeing its client data. This is because > ib_unregister_device() will remove the device from the device list with > lists_rwsem locked for write, but perform the rest of the cleanup, > including the call to remove() without that lock.
I was going to look at this, but, uh.. it seems mangled, doesn't apply, doesn't seem fixable from here. It isn't on top of any of Doug's trees that I can find and it has this: > @@ -348,21 +348,22 @@ void ib_unregister_device(struct ib_device *device) > > down_write(&lists_rwsem); > list_del(&device->core_list); .. lists_rwsem is what this patch is supposed to be adding, so I don't know what went wrong here.... Jason -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
