1513864 - Crash in mozilla::MemoryTelemetry::TotalMemoryGatherer::MaybeFinish

Status: RESOLVED FIXED

(Core :: XPCOM, defect)

Description

[Calixte Denizet (:calixte)]

This bug was filed from the Socorro interface and is
report bp-bb6b8b0b-e5d3-4bc3-bbf1-52ce80181213.
=============================================================

Top 10 frames of crashing thread:

0 libxul.so mozilla::MemoryTelemetry::TotalMemoryGatherer::MaybeFinish xpcom/base/MemoryTelemetry.cpp:413
1 libxul.so mozilla::MemoryTelemetry::TotalMemoryGatherer::CollectResult xpcom/base/MemoryTelemetry.cpp:442
2 libxul.so mozilla::MozPromise<long, mozilla::ipc::ResponseRejectReason, true>::ThenValue<mozilla::MemoryTelemetry::TotalMemoryGatherer*, void  xpcom/threads/MozPromise.h:502
3 libxul.so mozilla::MozPromise<long, mozilla::ipc::ResponseRejectReason, true>::ThenValueBase::ResolveOrRejectRunnable::Run xpcom/threads/MozPromise.h:392
4 libxul.so nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1157
5 libxul.so NS_ProcessNextEvent xpcom/threads/nsThreadUtils.cpp:468
6 libxul.so mozilla::ipc::MessagePump::Run ipc/glue/MessagePump.cpp:88
7 libxul.so MessageLoop::Run ipc/chromium/src/base/message_loop.cc:314
8 libxul.so nsBaseAppShell::Run widget/nsBaseAppShell.cpp:137
9 libxul.so nsAppStartup::Run toolkit/components/startup/nsAppStartup.cpp:271

=============================================================

There is 1 crash in nightly 66 with buildid 20181212215507. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1505522.

[1] https://hg.mozilla.org/mozilla-central/rev?node=bd8001e1f07e

Comment 1

[Kris Maglione [:kmag]]

Attachment: Bug 1513864: Don't divide by 0 when content processes report 0 USS. r=erahm

Comment 2

[Kris Maglione [:kmag]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/7ecb904e5c0aa22297eb657bb6a26ea6c6a9806f
Bug 1513864: Don't divide by 0 when content processes report 0 USS. r=erahm

Comment 3

[Bogdan Tara[:bogdan_tara | bogdant]]

https://hg.mozilla.org/mozilla-central/rev/7ecb904e5c0a