Re: [bcachefs] checksum error probably after switching to crc64

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W dniu 22.09.2016 o 13:34, Kent Overstreet pisze:
> On Thu, Sep 22, 2016 at 01:14:45PM +0200, Marcin Mirosław wrote:
>> W dniu 22.09.2016 o 12:58, Marcin Mirosław pisze:
>>> Hi!
>>> I'm at:
>>> commit b7cb7779de9609899fa53f7bab4e3cee69ac1f7e
>>> Author: Kent Overstreet <kent.overstreet@xxxxxxxxx>
>>> Date:   Wed Sep 21 17:38:38 2016 -0800
>>>
>>>     bcache: fix an ordering issue in btree_interior_update code
>>>
>>>     Also a bunch of refactoring
>>>
>>>
>>> Steps:
>>> # bcache format --discard  --compression_type=lz4 /dev/system10/bcache
>>> (underlaying devices does not support discard)
>>> # mount & use fs
>>> # echo crc64 > data_checksum
>>> # echo crc64 > metadata_checksum
>>> # use filesystem
>>> After sometime I'm getting:
>>> [ 6444.192279] bcache (dm-11): IO error on dm-11 for checksum error
>>
>> After some trying to read files dmesg says:
>> [ 7651.598498] bcache (dm-11): IO error on dm-11 for checksum error
>> [ 7657.066482] bio_checksum_uncompress: 83 callbacks suppressed
> 
> The crc64 fix turned out to be an incompatible change for crc32c, so I had to
> revert it. I'm just going to wait till I do all the other breaking changes for
> that one (which should be soon).


Even when files are written after changing to crc64?
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