1650489 - Unexpected "Assertion failure: !contentParent->IsDead()"

Status: RESOLVED WORKSFORME

(Core :: IPC, defect)

Description

[Tyson Smith [:tsmith]]

Attachment: stderr.txt

Using about:crashcontent trigger two crashes/assertions:

• Hit MOZ_CRASH(Crash via about:crashcontent) at /builds/worker/checkouts/gecko/docshell/base/nsAboutRedirector.cpp:40
• Assertion failure: !contentParent->IsDead(), at /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:1102
  The first assertion is expected the second is not.

STR:

1. Launch a debug build and open about:crashcontent

Comment 1

[Tyson Smith [:tsmith]]

Attachment: moz_crash_stack.txt

Comment 2

[Tyson Smith [:tsmith]]

Attachment: assert_stack.txt

Comment 3

[Tyson Smith [:tsmith]]

I did a local build using m-c 20200703-c050478f22e6 (to grab a rr trace) and I could not reproduce the issue. Since the build I originally saw this on was from June 23 I'll close this. If I am able to repro with a newer build I will reopen.