Thanks Luca and Emmanuel, On Tue, 2019-03-12 at 19:47 +0000, Grumbach, Emmanuel wrote: > On Tue, 2019-03-12 at 21:38 +0200, Luciano Coelho wrote: >> If this feature was explicitly disabled, it certainly means that >> something was causing problems with it, so I'd be wary to enable it >> for all DVM devices. >> >> I guess we could enable it by default for devices that work fine, but >> we would have to run it in real life for a lot longer with a lot more >> different APs to be sure it won't cause any problems. Makes sense to me. I can start testing with available APs. Let me know if there is anything specific I should look for or catalog beyond latency, packet drop rates, and bandwidth. >> Emmanuel, do you happen to remember what was the issue, so Kevin >> could test that specific scenario with this specific NIC? > > long long nights of despair. > > We had issues with reclaim path upon BACK. This is of course a firmware > problem... Does that suggest the issue may have been fixed by a firmware update? For reference, I'm currently using "firmware version 9.221.4.1 build 25532" from the firmware-iwlwifi Debian package (version 20190114-1). If it would be helpful, I could attempt to bisect the firmware revisions to find the one that fixed it (assuming I can reproduce the issue with a previous firmware version). Thanks again, Kevin