Comment 32 for bug 1153618

I have the same issue with microSDHC Kinggston 16GB, Class 10 on TP 450s, F22:

[81969.690224] mmc0: cannot verify signal voltage switch
[81969.754721] mmc0: new ultra high speed SDR104 SDHC card at address 0001
[81969.754895] mmcblk0: mmc0:0001 SD16G 14.6 GiB (ro)
[81969.756149] mmcblk0: p1
[81969.757462] mmcblk0: unknown error -22 sending read/write command, card status 0x900
[81969.827288] mmc0: cannot verify signal voltage switch
[81969.888252] mmc0: tried to reset card
[81969.889490] mmcblk0: unknown error -22 sending read/write command, card status 0x900
[81969.889495] blk_update_request: I/O error, dev mmcblk0, sector 30703488
[81969.890135] mmcblk0: unknown error -22 sending read/write command, card status 0x900
[81969.890138] blk_update_request: I/O error, dev mmcblk0, sector 30703488
[81969.890140] Buffer I/O error on dev mmcblk0, logical block 3837936, async page read
[81969.895589] mmcblk0: unknown error -22 sending read/write command, card status 0x900
[81969.895598] blk_update_request: I/O error, dev mmcblk0, sector 30703488
[81969.897084] mmcblk0: unknown error -22 sending read/write command, card status 0x900
[81969.897090] blk_update_request: I/O error, dev mmcblk0, sector 30703488
[81969.897094] Buffer I/O error on dev mmcblk0p1, logical block 3836912, async page read

[root@dhcp-24-139 ~]# lspci | grep -i RTS
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader (rev 01)