1763363 - Crash in [@ mozilla::DOMEventTargetHelper::AddRef | mozilla::DOMEventTargetHelper::QueryInterface]

Status: RESOLVED DUPLICATE of bug 1763390

(Core :: DOM: Workers, defect)

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

34 crashes from 11+ machines, oldest affected build is Firefox 100.0a1 20220325214737 - regression from bug 1756172? (Bug 1761459 had also landed.)

Crash report: https://crash-stats.mozilla.org/report/index/7bcf9c3e-a7e3-4cd7-9ab9-27e620220406

Reason: EXC_BAD_ACCESS / KERN_INVALID_ADDRESS

Top 10 frames of crashing thread:

0 XUL mozilla::DOMEventTargetHelper::AddRef dom/events/DOMEventTargetHelper.cpp:85
1 XUL mozilla::DOMEventTargetHelper::QueryInterface dom/events/DOMEventTargetHelper.cpp:83
2 XUL mozilla::dom::DedicatedWorkerGlobalScope::QueryInterface dom/workers/WorkerScope.cpp:800
3 XUL nsQueryReferent::operator const xpcom/base/nsWeakReference.cpp:52
4 XUL nsCOMPtr_base::assign_from_query_referent xpcom/base/nsCOMPtr.cpp:100
5 XUL mozilla::dom::workerinternals:: dom/workers/RuntimeService.cpp:2220
6 XUL nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1181
7 XUL mozilla::ipc::MessagePumpForNonMainThreads::Run ipc/glue/MessagePump.cpp:330
8 XUL MessageLoop::Run ipc/chromium/src/base/message_loop.cc:355
9 XUL nsThread::ThreadFunc xpcom/threads/nsThread.cpp:385

Comment 4

[Jens Stutte [:jstutte]]

The fix for bug 1763390 is supposed to heal these crashes (but not to remove the root cause).