On Tue, Feb 22, 2022 at 01:18:17AM +0100, Marek Marczykowski-Górecki wrote: > This reverts commit 2afeec08ab5c86ae21952151f726bfe184f6b23d. > > The reasoning in the commit was wrong - the code expected to setup the > watch even if 'hotplug-status' didn't exist. In fact, it relied on the > watch being fired the first time - to check if maybe 'hotplug-status' is > already set to 'connected'. Not registering a watch for non-existing > path (which is the case if hotplug script hasn't been executed yet), > made the backend not waiting for the hotplug script to execute. This in > turns, made the netfront think the interface is fully operational, while > in fact it was not (the vif interface on xen-netback side might not be > configured yet). > > This was a workaround for 'hotplug-status' erroneously being removed. > But since that is reverted now, the workaround is not necessary either. > > More discussion at > https://lore.kernel.org/xen-devel/afedd7cb-a291-e773-8b0d-4db9b291fa98@xxxxxxxx/T/#u > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx> > --- > I believe this is the same issue as discussed at > https://lore.kernel.org/xen-devel/20220113111946.GA4133739@xxxxxxxxxxxxxx/ Right - I believe we need to leave that workaround in place in libxl in order to deal with bogus Linux netbacks? Thanks, Roger.
