Christopher, Sorry, same thing. One SDXC card mounts the other does not mount.
Results with: Sep 16 15:32:28 tennekes kernel: [ 0.000000] Linux version 4.8.0-040800rc6-generic (kernel@gloin) (gcc version 6.2.0 20160901 (Ubuntu 6.2.0-3ubuntu11) ) #201609121119 SMP Mon Sep 12 15:21:03 UTC 2016 Sep 16 15:32:28 tennekes kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.8.0-040800rc6-generic root=UUID=560e20f5-d2aa-48c1-ab12-55c2a34639f8 ro quiet splash vt.handoff=7 ... Sep 16 15:33:15 tennekes kernel: [ 55.467439] mmc0: new ultra high speed DDR50 SDXC card at address aaaa Sep 16 15:33:15 tennekes kernel: [ 55.472598] mmcblk0: mmc0:aaaa SL64G 59.5 GiB Sep 16 15:33:15 tennekes kernel: [ 55.487986] mmcblk0: p1 Sep 16 15:33:15 tennekes udisksd[4687]: Mounted /dev/mmcblk0p1 at /media/xxx/6337-6134 on behalf of uid 1000 ... Sep 16 15:33:25 tennekes udisksd[4687]: Cleaning up mount point /media/xxx/6337-6134 (device 179:1 is not mounted) Sep 16 15:33:25 tennekes udisksd[4687]: Unmounted /dev/mmcblk0p1 on behalf of uid 1000 Sep 16 15:33:29 tennekes kernel: [ 69.269981] mmc0: card aaaa removed ... Sep 16 15:33:43 tennekes kernel: [ 83.451445] mmc0: tuning execution failed: -5 Sep 16 15:33:43 tennekes kernel: [ 83.451457] mmc0: error -5 whilst initialising SD card Sep 16 15:33:44 tennekes kernel: [ 83.892892] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock Sep 16 15:33:44 tennekes kernel: [ 83.894714] mmc0: tuning execution failed: -5 Sep 16 15:33:44 tennekes kernel: [ 83.894727] mmc0: error -5 whilst initialising SD card Best regards -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1622376 Title: Mounting SDXC Cards unreliable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1622376/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
