Messages in this thread | | | Date | Tue, 08 Aug 2006 15:06:21 +0400 | From | Edward Shishkin <> | Subject | Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion |
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Matthias Andree wrote: > [stripping Cc: list] > > On Thu, 03 Aug 2006, Edward Shishkin wrote: > > >>>What kind of forward error correction would that be, >> >>Actually we use checksums, not ECC. If checksum is wrong, then run >>fsck - it will remove the whole disk cluster, that represent 64K of >>data. > > > Well, that's quite a difference... > > >>Checksum is checked before unsafe decompression (when trying to >>decompress incorrect data can lead to fatal things). > > > Is this sufficient? How about corruptions that lead to the same checksum > and can then confuse the decompressor?
It is a multiplication of two unlikely events: fs corruption and 32-hash collision. Paranoid people can assign zlib-based transform plugin: afaik everything is safe there.
Is the decompressor safe in that > it does not scribble over memory it has not allocated? >
yes
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