Reopening. Retested with 4.14.13-300.fc27.x86_64. Now, the SDXC card mounts and I am able to see the directory structure and the files within, but reading the files is impossible:
$ cp media/NIKON\ D90/DCIM/102NCD90/DSC_5402.NEF Pictures/2017-10-winter/ cp: error reading 'media/NIKON D90/DCIM/102NCD90/DSC_5402.NEF': Input/output error
dmesg is flooded with: ------- 8<--------------------------------------------------------------------- [149344.199707] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.247071] mmcblk0: error -22 sending status command, retrying [149344.292484] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.293295] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.339381] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.385501] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.431498] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.477505] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.524546] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.570809] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.617023] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.663024] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.709263] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.757045] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.849252] mmc0: cannot verify signal voltage switch [149344.920400] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149344.966908] mmcblk0: error -22 sending status command, retrying [149345.012213] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.012978] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.058938] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.105016] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.151119] mmcblk0: error -22 sending status command, retrying [149345.196433] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.197233] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.243617] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.289777] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.335861] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.381835] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.427905] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.473882] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 [149345.519910] mmcblk0: response CRC error sending r/w cmd command, card status 0x900 ------- -------------------------------------------------------------->8-------
Reopening. Retested with 4.14.13- 300.fc27. x86_64. Now, the SDXC card mounts and I am able to see the directory structure and the files within, but reading the files is impossible:
$ cp media/NIKON\ D90/DCIM/ 102NCD90/ DSC_5402. NEF Pictures/ 2017-10- winter/ 102NCD90/ DSC_5402. NEF': Input/output error
cp: error reading 'media/NIKON D90/DCIM/
dmesg is flooded with: ------- ------- ------- ------- ------- ------- ------- ------- ------- - ------- ------- ------- ------- ------- ------- ------- ------> 8------ -
------- 8<-----
[149344.199707] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.247071] mmcblk0: error -22 sending status command, retrying
[149344.292484] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.293295] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.339381] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.385501] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.431498] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.477505] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.524546] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.570809] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.617023] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.663024] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.709263] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.757045] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.849252] mmc0: cannot verify signal voltage switch
[149344.920400] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149344.966908] mmcblk0: error -22 sending status command, retrying
[149345.012213] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.012978] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.058938] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.105016] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.151119] mmcblk0: error -22 sending status command, retrying
[149345.196433] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.197233] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.243617] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.289777] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.335861] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.381835] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.427905] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.473882] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
[149345.519910] mmcblk0: response CRC error sending r/w cmd command, card status 0x900
------- -------