Linux: Chasing Down Data Corruption
In a couple of fascinating threads on the lkml, Linus Torvalds has been working with several other kernel developers to try and track down a difficult data corruption bug. Linus posted a test-program that's capable of consistently triggering the data corruption, so it's a matter of time before the bug is found and fixed.
"I think the page-writeout is implicated," Linus explains, "because I do seem to need it, but the page-cache flush does seem to make corruption _easier_ to see. I now seem about to trigger it with a 100MB file on a 256MB machine in a minute or so, with this slight modification. I still don't see _why_, though. But maybe smarter people than me can see it."
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