Fedora 14 Beta corrupts user data

John Reiser jreiser at bitwagon.com
Sun Sep 26 17:40:22 UTC 2010

Compiled code for minimum(), maximum(), etc. suffers from a compiler bug:
https://bugzilla.redhat.com/show_bug.cgi?id=634757    -O1 wrong-code by cmove
Unfortunately this bug can corrupt user data silently.

I have hit the bug three times myself (bz 635508, 637303, 637461)
and consider myself lucky that the bad effects were evident and ignorable.

A fix is in testing, and a critical path update has been approved:
IMNSHO this will require a mass rebuild of all architecture-specific
.fc14 .rpm.

Meanwhile, do not use Fedora 14 Beta on data that you value (e-mail,
documents, database, etc.)  It really is that dangerous.


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