On Thu, 8 Aug 2013, Chaitra Bhat wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > Hi Alasdair, > > Thanks for your response. > > But I am not convinced. Here is why... > > 1. I tried a bit-more and I was able to get Input/Output Error on > certain locations - everytime - I read that location. (But I still have > an open question that on some locations, though the verify reports > failure, I do not get an IO Error on read) > > 2. I do not understand when you say device is live - do you mean > mounted? Because I thought that the whole idea of dm-verity was that > once the verity device is set-up, it would return EIO when something > gets corrupted in the data or hash partitions when that invalid data is > read. > > Chaitra It is possible that you are reading data from the buffer cache and not from the underlying device. To not use the buffer cache, use iflag=direct parameter to dd. Mikulas -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
