[DRBD-user] Warning: Data Corruption Issue Discovered in DRBD 8.4 and 9.0

Eric Robinson eric.robinson at psmnv.com
Tue Oct 17 01:13:22 CEST 2017

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

> > Well, damn. As the program was supposedly reviewed by Samsung
> engineers as part of their efforts to diagnose the root cause of TRIM errors, it
> never occurred to me that it was that buggy. I can't thank you enough for
> finding that! The rollout of some new DRBD clusters has been on hold for 2+
> months while we've been trying to track this down.
> Eric, thanks for the time you took to demonstrate and reproduce an issue
> you thought you found. These things happen. Samsung engineers are people
> too :-) although it seems they overlooked a rather elementary problem.
> Any many many thanks to Lars for taking the time to review this issue, finding
> the cause and putting our minds to rest.
> kind regards,
> Jan

I'm not quite decided. As Lars suggested, I'm going to try to make it fail a couple more times and see if the supposedly "corrupt" files are indeed >= 4GiB. I'll update everyone when I have more information. Thanks all of you for paying attention to this.


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