Re: btrfs csum failed on git .pack file

Zach Brown
2009-09-17T17:00:28Z

> 0130 9FA0: E2 3B 43 AA 63 BF 28 B3 87 B7 FD AB DA 74 2D 1C
> 0130 9FA0: E2 3B 43 AA 63 BF 28 B3 87 33 FD AB DA 74 2D 1C

B7 = 10110111
33 = 00110011

> 06CD DF90: B0 22 6B 46 9F ED 6E 47 73 5E 7E EB DA 5F D6 11
> 06CD DF90: B0 22 6B 46 9F ED 6E 47 73 1E 7E EB DA 5F D6 11

5E = 01011110
1E = 00011110

> 06CD DFC0: 0D 86 2B B2 57 A4 5A CD 78 4B 08 94 C0 65 17 3A
> 06CD DFC0: 0D 86 2B B2 57 A4 5A CD 78 0B 08 94 C0 65 17 3A

4B = 01001011
0B = 00001011

And so on.

It looks like a few bits are getting flipped at the same byte offset.
One can imagine software bugs that would do this, certainly, but upset
hardware seems awfully likely too.

- z