I have the same problem on an Acer Aspire V5-171, same broadcomm hardware BCM57765, same log messages, kubuntu 12.10, kernel 3.5.0-21.
I might open another bug if necessary, but I can't add much more.
Also, this link gives some more logs with CONFIG_MMC_DEBUG=y and mentions some hardware specificity (private mmio-block) as the root of the problem: http://www.spinics.net/lists/linux-mmc/msg08483.html
I have the same problem on an Acer Aspire V5-171, same broadcomm hardware BCM57765, same log messages, kubuntu 12.10, kernel 3.5.0-21.
I might open another bug if necessary, but I can't add much more. www.spinics. net/lists/ linux-mmc/ msg08483. html
Also, this link gives some more logs with CONFIG_MMC_DEBUG=y and mentions some hardware specificity (private mmio-block) as the root of the problem: http://