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Betrayed by a bitfield

Feb 11, 2012, 14:00 (1 Talkback[s])
(Other stories by Jonathan Corbet)

"Developers tend to fear compiler bugs, and for good reason: such bugs can be hard to find and hard to work around. They can leave traps in a compiled program that spring on users at bad times. Things can get even worse if one person's compiler bug is seen by the compiler's developer as a feature - such issues have a tendency to never get fixed. It is possible that just this kind of feature has turned up in GCC, with unknown impact on the kernel.

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