[Samba] io_uring cause data corruption
mail at lechevalier.se
Mon Apr 27 08:27:17 UTC 2020
On 2020-04-26 19:46, Jeremy Allison via samba wrote:
> On Sun, Apr 26, 2020 at 11:51:42AM +0200, A L via samba wrote:
>> * Connected from a Windows 10 computer over 1G ethernet. * Copy data
>> using Windows Explorer and FastCopy(1) from the Samba share to a
>> local disk. * Verify the sha-256 sum on the files. From what I can
>> see there is data corruption on many of the files. Sha-256 does not
>> match. I copied the same files many times and the data corruption
>> occurs within minutes. The total data set is about 800GB.
> Can you do checksums on file fragments so we can discover at what
> offset (if non-zero) the corruption occurs.
Yes, I will check this.
I saw a patch on the kernel mailing list about possible corruptions in
during re-scheduling. I wonder if this is the problem I am hitting. I'll
make some more tests with this patch.
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