On Thu, 2016-08-25 at 22:55 -0400, Robert Krawitz wrote: > Then, when I write large volumes of data to the drive, I get the > following every few minutes or so, with the drive temporarily > stalling. The result is that on a drive capable of about 120 MB/sec I > actually get 40-60 MB/sec (it varies). > > [ 475.006500] sd 6:0:0:0: [sdd] tag#15 uas_eh_abort_handler 0 uas-tag > 16 inflight: CMD IN > [ 475.006509] sd 6:0:0:0: [sdd] tag#15 CDB: Read(16) 88 00 00 00 00 > 00 a3 81 00 4f 00 00 00 08 00 00 This is the typical error handling of UAS, which works in your case, albeit with a performance penalty. But the actual cause of kicking in the error handler is missing in your log. You cut too much at the beginning. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
