Comment # 20 on bug 892249 from Takashi Iwai

Ah, I have looked somehow at the wrong places.

Yes, you can keep using the SD-card, etc, without r592 and r852 modules.  r592
module is only for the legacy memory stick device, and r852 is for xD.  Unless
you need these rare media, you can safely blacklist them.

Did you have to blacklist both modules, not only one of them?  I wonder now
whether disabling DMA in r592 and r852 modules make things calm down.  Put the
following in /etc/modprobe.d/*.conf:

  options r592 enable_dma=0
  options r852 r852_enable_dma=0