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The source of the e1000e corruption bug

The source of the e1000e corruption bug

Posted Oct 23, 2008 18:34 UTC (Thu) by nevets (subscriber, #11875)
In reply to: The source of the e1000e corruption bug by jimparis
Parent article: The source of the e1000e corruption bug

Why do you think I stressed in my quote:

The cmpxchg could have saved us in most cases (via luck) - but with ioremap-ed memory that was exactly the wrong thing to do - the results of cmpxchg on device memory are undefined. (and will likely result in a write)

;-)


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The source of the e1000e corruption bug

Posted Oct 23, 2008 19:37 UTC (Thu) by jimparis (subscriber, #38647) [Link]

Aah, I did misread that, as "if we're lucky then the memory was not ioremapped and so the cmpxchg saves us". Nevermind, carry on :)


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