On Sat, 19 Oct 2019, Harald Dunkel wrote: > Hi folks, > > I've got an USB3 SD card adapter (device info attached). Problem: > Writing a (rather slow 133x) SD card via an USB3 slot I get I/O errors, > see attached kern.log. If I use an USB2 slot, then there is no problem > (not shown here). > > The I/O errors don't come up immediately, but after a few minutes > writing time, so I wonder if this is a heat problem? > > Since modern PCs don't have USB2 slots anymore I would be highly > interested in a workaround. Kernel is 5.3.6 built from the git > repository. > > > Every helpful hint is highly appreciated. What happens if you don't use that rather slow 133x SD card? Do other cards work better? Another possibility: If you attach the card adapter by a USB-2 cable then it will run as a USB-2 device (even when plugged into a USB-3 port). That probably would help -- although it would also slow down the data transfers. Although, come to think of it, slowing down the transfer rate may be just what this card needs... Alan Stern