This bug was filed from the Socorro interface and is report bp-68ed8e3c-e871-4b59-aee4-f372e0171021. ============================================================= Crashing Thread (16) Frame Module Signature Source 0 firefox mozalloc_abort memory/mozalloc/mozalloc_abort.cpp:33 1 firefox abort memory/mozalloc/mozalloc_abort.cpp:80 2 libxul.so std::panicking::rust_panic src/libpanic_abort/lib.rs:59 3 libxul.so std::panicking::rust_panic_with_hook src/libstd/panicking.rs:627 4 libxul.so std::panicking::begin_panic<&str> src/libstd/panicking.rs:572 5 libxul.so audioipc_server::Server::poll media/audioipc/server/src/lib.rs:607 6 libxul.so std::sys_common::backtrace::__rust_begin_short_backtrace<closure, ()> media/audioipc/server/src/lib.rs:789 7 libxul.so alloc::boxed::{{impl}}::call_box<(), closure> src/libstd/thread/mod.rs:394 8 libxul.so std::sys::imp::thread::{{impl}}::new::thread_start src/liballoc/boxed.rs:692 Ø 9 libpthread-2.26.so libpthread-2.26.so@0x7557 Ø 10 libc-2.26.so libc-2.26.so@0xf845e these crashes on linux started with firefox 58.0a1 build 20171019100107. those crashes come with MOZ_CRASH Reason "failed to insert connection" that got added in bug 1391523.

In that crash report, I see |e10sMultiProcesses":999|, so duping to bug 1410107.