Hi, I have a problem as described at [1], sorry for misunderstanding the right place to report it. The last kernel I can easily install and test was 5.0.17, but please tell me if I should install a newer version (or anything else I should do). I just tried installing 5.1.5 but suddenly stopped as I have problem in compilation (please be patient with me, because I am not an expert). Here follows the bug report content: I am experiencing slow I/O performance since kernel 5.0.1. File operations are roughly 10 times slower than they used to be using kernel up to 4.20. The problem is present when I use an USB pendrive, and does not happen when I copy a file from an internal SATA to another internal SATA hard disk. You can see the discussion in the dar (backup software) mailing list [2], because I first noticed the problem using dar, but then discovered that also usual file operations such as "cp" suffer the same problem. Steps to Reproduce: Copy a file (e.g. roughly 1GB) from an internal SATA HD to an USB pendrive using "cp", using kernel 5.0.1+ Actual Results: The file is copied in about 12 minutes Expected Results: The file is copied in about 1 minute (as it happens with kernel up to 4.20.13) Running Fedora 29 on a Desktop PC. Kernels found to be affected: e.g. 5.0.7, 5.0.9, 5.0.10, 5.0.13, 5.0.14, 5.0.17. Thanks, and bye, Andrea [1] https://bugzilla.kernel.org/show_bug.cgi?id=203757 [2] https://sourceforge.net/p/dar/mailman/dar-support/thread/d490b5733731cbbb526d759c858a4b11a52fd179.camel%40unipv.it/#msg36660380
