778382 - ABORT: Creating second IPC server for '' while first still exists

Status: RESOLVED FIXED

(Core :: IPC, defect)

Description

[Christoph Diehl [:posidron]]

This crash occurred while rotationally launching Firefox and Calculator on B2G and randomly closing the pipe_.

Currently I can't provide a testcase due to the nature of the fuzzer. Working on it. Let me know if you need further information.

The "callstack" shows the full session.

Comment 1

[Christoph Diehl [:posidron]]

Attachment: callstack

Comment 2

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Hmmmmm ... we might be trying to reuse a ContentParent in a dumb way here.

Comment 3

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Attachment: Don't put anonymous sockets in the PipeMap because they can collide

This happens because we have two anonymous unconnected channels, in certain race conditions: the process channel for the content process, and the PCompositor channel.

Comment 4

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

https://hg.mozilla.org/integration/mozilla-inbound/rev/501ef57a8121

Comment 5

[Ed Morley [:emorley]]

https://hg.mozilla.org/mozilla-central/rev/501ef57a8121