Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux