Comment 26 for bug 995743

FWIW, I used the SD card reader recently, using the workaround of "echo 1 > /sys/bus/pci/rescan" as root. Then, I noticed a few entries in dmesg similar to this:

[36964.574442] mmc0: Reset 0x4 never completed.
[36964.584408] mmc0: Controller never released inhibit bit(s).
[36964.683601] mmc0: Reset 0x2 never completed.
[36964.782781] mmc0: Reset 0x4 never completed.
[36964.792752] mmc0: Controller never released inhibit bit(s).
[36964.891997] mmc0: Reset 0x2 never completed.
[36964.991203] mmc0: Reset 0x4 never completed.
[36965.001173] mmc0: Controller never released inhibit bit(s).
[36965.100354] mmc0: Reset 0x2 never completed.
[36965.199537] mmc0: Reset 0x4 never completed.
[36965.209532] mmc0: Controller never released inhibit bit(s).
[36965.308750] mmc0: Reset 0x2 never completed.
[36965.407971] mmc0: Reset 0x4 never completed.
[36965.418103] mmc0: Controller never released inhibit bit(s).
[36965.517340] mmc0: Reset 0x2 never completed.
[36965.616556] mmc0: Reset 0x4 never completed.
[36965.715913] mmc0: Reset 0x1 never completed.