Hi Oliver, I'm currently using the latest 4.18.12 mainline ( on Arch https://www.archlinux.org/packages/core/x86_64/linux/ ), and yes you're right I am NOT using UAS at the moment. The link I left is because I noticed those errors on dmesg, and I thought I had it enabled. This is why I am writing to you right now :) I personally think the SSD sometimes hangs because TRIM commands are not sent properly to the adapter. Although I'm not 100% sure, this is why I would like to test UAS. Can you please point me to the right instructions for trying UAS on my adapter? So I can report back the outcome. Also I noticed that is blacklisted because it's detected as ASMedia ( although it's JMicron ) and falls in one of the four cases that checks for speed ( or something like that, I can't find the link to the source code again otherwise I would have pointed to the code line ). Thank you again for your help and best regards, Julian Xhokaxhiu Full Stack Developer, IT Practised (ISCED 4) https://julianxhokaxhiu.com/ On Mon, Oct 15, 2018 at 12:56 PM Oliver Neukum <oneukum@xxxxxxxx> wrote: > > On So, 2018-10-14 at 13:40 +0200, Julian Xhokaxhiu wrote: > > Dear USB Driver module maintainers, > > Hi, > > thank you for the report > > > Although sometimes, the system "hangs" very rarely, but in an annoying > > fashion that makes a bit sluggish the experience, which translates to > > weird dmesg errors like these ones: > > https://unix.stackexchange.com/questions/441668/debian-usb3-hdd-uas-i-o-errors > > Just for confirmation: > You are seeing these error messages for the current kernel? > I am asking because the link is a report about UAS and you write that > UAS is not used. > > > Initially I thought as I'm using an USB 3.0 adapter[0], that maybe the > > UAS driver was buggy, but at my own surprise I found out actually that > > the UAS driver is not used at all, although the adapter supports it > > fine. > > > > I am currently using it on a Dell Latitude 7480, and when I use > > `lsusb` I see that the device is recognized as `JMicron JMS561U` > > which, by spec, supports UAS ( see > > http://www.jmicron.com/PDF/brief/jms561u.pdf ). > > > > I am wondering if this device was already tested by anyone of you > > already, and if not, if I can be a tester for a patch to enable UAS on > > this adapter. > > I actually cannot find a patch blacklisting the device which > according the log you attached must exist. > Which kernel are you using? > > You can certainly test your device with UAS. > > Regards > Oliver >
