emmc secure erase bug
ok, the following issue does apply to replicant:
the mentioned kernel patch has not been applied in replicant. (compare:)
if you'd like, i could create a brief warning on the install page, like the one at the top, here: http://wiki.cyanogenmod.org/w/I9100_Info <- this is my offer to help.
my phone's flash chip is an affected model. i'm nearly positive that my flash chip is partly corrupted. (reading sequential 1 MB blocks from my flash chip with dd gives about 6.8 thousand errors. somehow, the affected areas doesn't prevent my phone from booting, or show obvious data corruption during day-to-day use. it's an absolute paradox, but the issue remains that the kernels shipped with replicant are not patched to work around this dangerous firmware bug.)
this bug also affects some galaxy s3 phones. there is a work-around available for them too. see: http://wiki.cyanogenmod.org/w/EMMC_Bugs
sorry for taking a while to open a new bug report about this.