In bug 1477490, we might have discovered a generic problem with Windows Threads and ASan. This problem causes all sorts of stack reports coming in via the ASan Nightly Project, but most of these reports are (probably) not legit. As this also affects the stability of the browser I would like to disable the stack instrumentation on Windows (only for ASan reporter builds), so we can unblock the project. We should still try to solve the underlying problem but the project's purpose is to find use-after-free and that ability will remain unaffected by this change.

I support this. Time permitting, I'd really like to understand and address the root cause here, but as a practical matter it doesn't make sense to let this hold up the usability of ASan Reporter builds.

Comment on attachment 8995938 [details] Bug 1479385 - Disable stack instrumentation for Windows Nightly ASan builds. https://reviewboard.mozilla.org/r/260240/#review267254

Pushed by choller@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/08c8ed833c3a Disable stack instrumentation for Windows Nightly ASan builds. r=dmajor