Retesting with a more recent kernel 4.1.8-100.fc21.x86_64
Oct 29 20:40:08 t440s kernel: mmc0: cannot verify signal voltage switch Oct 29 20:40:08 t440s kernel: mmc0: new ultra high speed SDR104 SDXC card at address 0007 Oct 29 20:40:08 t440s kernel: mmcblk0: mmc0:0007 SD64G 58.2 GiB Oct 29 20:40:08 t440s kernel: mmcblk0: p1 Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: mmc0: cannot verify signal voltage switch Oct 29 20:40:08 t440s kernel: mmc0: tried to reset card Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x800b00 Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456 Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456 Oct 29 20:40:08 t440s kernel: Buffer I/O error on dev mmcblk0, logical block 15267807, async page read Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456 Oct 29 20:40:08 t440s kernel: Buffer I/O error on dev mmcblk0, logical block 15267807, async page read Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: mmc0: cannot verify signal voltage switch Oct 29 20:40:08 t440s kernel: mmc0: tried to reset card Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048 Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048 Oct 29 20:40:08 t440s kernel: Buffer I/O error on dev mmcblk0p1, logical block 0, async page read Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: mmc0: cannot verify signal voltage switch Oct 29 20:40:08 t440s kernel: mmc0: tried to reset card Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048 Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900 Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048 Oct 29 20:40:08 t440s kernel: Buffer I/O error on dev mmcblk0p1, logical block 0, async page read
same issues
Retesting with a more recent kernel 4.1.8-100. fc21.x86_ 64
Oct 29 20:40:08 t440s kernel: mmc0: cannot verify signal voltage switch
Oct 29 20:40:08 t440s kernel: mmc0: new ultra high speed SDR104 SDXC card at address 0007
Oct 29 20:40:08 t440s kernel: mmcblk0: mmc0:0007 SD64G 58.2 GiB
Oct 29 20:40:08 t440s kernel: mmcblk0: p1
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: mmc0: cannot verify signal voltage switch
Oct 29 20:40:08 t440s kernel: mmc0: tried to reset card
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x800b00
Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456
Oct 29 20:40:08 t440s kernel: Buffer I/O error on dev mmcblk0, logical block 15267807, async page read
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456
Oct 29 20:40:08 t440s kernel: Buffer I/O error on dev mmcblk0, logical block 15267807, async page read
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: mmc0: cannot verify signal voltage switch
Oct 29 20:40:08 t440s kernel: mmc0: tried to reset card
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048
Oct 29 20:40:08 t440s kernel: Buffer I/O error on dev mmcblk0p1, logical block 0, async page read
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: mmc0: cannot verify signal voltage switch
Oct 29 20:40:08 t440s kernel: mmc0: tried to reset card
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048
Oct 29 20:40:08 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Oct 29 20:40:08 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048
Oct 29 20:40:08 t440s kernel: Buffer I/O error on dev mmcblk0p1, logical block 0, async page read
same issues