It is possible that for UAS the counters are purely wrong and that no IO is really happening. I have seen the perf counters be wrong in a number of ways for a number of devices and often no one notices that the counters are wrong. And since the counters being wrong does not really affect it working or not this is often missed. If it is a spinning disk you might try listening to it and see if it is really doing something. On Tue, Mar 19, 2024 at 9:09 AM Michael Reinelt <michael@xxxxxxxxxxxxx> wrote: > > I think I found at least a workaround: the strange behaviour disappears immediately, if I disable > UAS, and use usb-storage for the externel USB drive. > > options usb-storage quirks=04e8:4001:u > > I am sure that UAS has been used with kernel 6.1, too, where it did not cause any issues... > > Ideas what is going wrong in kernel 6.6? I'd like to re-enable UAS, because UAS is about 200 MB/sec > faster than usb-storage > > > regards, Michael > > -- > Michael Reinelt <michael@xxxxxxxxxxxxx> > Ringsiedlung 75 > A-8111 Gratwein-Straßengel > +43 676 3079941 >
