Comment 38 for bug 1153618

e-test with 4.7.4-100.fc23.x86_64

Sep 28 11:37:20 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:37:20 t440s kernel: mmc0: new ultra high speed SDR104 SDXC card at address 0007
Sep 28 11:37:20 t440s kernel: mmcblk0: mmc0:0007 SD64G 58.2 GiB
Sep 28 11:37:20 t440s kernel: mmcblk0: p1
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:20 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:20 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:20 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456
Sep 28 11:37:20 t440s kernel: Buffer I/O error on dev mmcblk0, logical block 15267807, async page read
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:20 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122142456
Sep 28 11:37:20 t440s kernel: Buffer I/O error on dev mmcblk0, logical block 15267807, async page read
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:20 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:20 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:20 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2048
Sep 28 11:37:20 t440s kernel: Buffer I/O error on dev mmcblk0p1, logical block 0, async page read
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:20 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:37:20 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:21 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:37:21 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:21 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:37:21 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:21 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:37:21 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:21 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2168
Sep 28 11:37:21 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:37:21 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2168
Sep 28 11:37:21 t440s kernel: Buffer I/O error on dev mmcblk0p1, logical block 15, async page read

Check if we have a valid partition table

[root@t440s sellis]# fdisk -l /dev/mmcblk0
Disk /dev/mmcblk0: 58.2 GiB, 62537072640 bytes, 122142720 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x589b34b4

Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 2048 122140671 122138624 58.2G 83 Linux
[root@t440s sellis]# blkid /dev/mmcblk0p1
/dev/mmcblk0p1: LABEL="SDXH64" UUID="6191b643-9335-430f-a59d-fed009df3b61" TYPE="xfs" PARTUUID="589b34b4-01"

This produced the following kernel errors

Sep 28 11:38:08 t440s chronyd[1148]: Selected source 203.97.109.165
Sep 28 11:38:16 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:16 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:16 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 122140408
Sep 28 11:38:16 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:16 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:16 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2176
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2184
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2192
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2200
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2208
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2216
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2224
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2232
Sep 28 11:38:16 t440s kernel: blk_update_request: I/O error, dev mmcblk0, sector 2240
Sep 28 11:38:16 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:16 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:16 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:17 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:17 t440s kernel: Buffer I/O error on dev mmcblk0p1, logical block 9, async page read
Sep 28 11:38:17 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:17 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:17 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:17 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:17 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:17 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:17 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:17 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:17 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:17 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:17 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:18 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:18 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:18 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:18 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:18 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:18 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:18 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:18 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:18 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:18 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:19 t440s kernel: mmc0: cannot verify signal voltage switch
Sep 28 11:38:19 t440s kernel: mmcblk0: unknown error -22 sending read/write command, card status 0x900
Sep 28 11:38:19 t440s kernel: Buffer I/O error on dev mmcblk0p1, logical block 117, async page read