Running 12.04 LTS on 64-bit AMD setup with a generic USB attached Multi- card reader. With all the slots in the reader empty (CF/SD/USB etc) the following appears in kern.log and syslog, repeating the whole block approximately every 55 seconds.
Oct 26 12:59:38 chi kernel: [238967.019095] sd 8:0:0:0: [sdd] Test WP failed, assume Write Enabled Oct 26 12:59:38 chi kernel: [238967.021168] sd 8:0:0:0: [sdd] Asking for cache data failed Oct 26 12:59:38 chi kernel: [238967.021174] sd 8:0:0:0: [sdd] Assuming drive cache: write through Inserting a card or stick into any of the device slots generates 6 additional lines in the logs then stops the cycle. In other words this is only a problem when the device is 'empty' FYI - the reader does NOT appear to have any specific card sensing mechanism, either switch or sensor, built in. Rather than blacklisting the module, which I may want to use one day, I stuck an old SD card in the reader and the logs are quiet... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/925760 Title: Constant warnings from the kernel: Test WP failed, assume Write Enabled To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/925760/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs