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We've been seeing more segfaults due to race conditions. This gist is a simplified version of the
/auction
code flow. Run it withgo run -race main.go
to see the race condition, and then re-run it after uncommenting the "copy" lines to show it fixedI think I got all the mutations, and documented which ones are "allowed" on
makeOpenRTBGeneric
... but of course there's no way to be certain.I do think we need more general improvements so that these race conditions are less likely... but I'll log a separate issue for it shortly.