1699683 - Enabling the profiler with the IO interposer to profile tests in debug builds leaks in content processes at shutdown

Status: RESOLVED FIXED

(Core :: Gecko Profiler, defect, P2)

Description

[Florian Quèze [:florian]]

Step to reproduce:
MOZ_PROFILER_STARTUP=1 MOZ_PROFILER_STARTUP_FEATURES="nostacksampling,js,fileio" ./mach test browser/components/customizableui/test/browser_885530_showInPrivateBrowsing.js --headless

Result:

== BloatView: ALL (cumulative) LEAK AND BLOAT STATISTICS, tab process 33461

     |<----------------Class--------------->|<-----Bytes------>|<----Objects---->|
     |                                      | Per-Inst   Leaked|   Total      Rem|
   0 |TOTAL                                 |       31      400|   18240        4|
  88 |MasterList                            |       32       32|       1        1|
 107 |ObserverLists                         |      176      352|       2        2|
 156 |PerThreadData                         |       16       16|      10        1|

nsTraceRefcnt::DumpStatistics: 369 entries
leakcheck: tab leaked 1 MasterList
leakcheck: tab leaked 2 ObserverLists
leakcheck: tab leaked 1 PerThreadData

at shutdown for every content process.
The parent and socket processes don't leak.

Note: Setting MOZ_PROFILER_STARTUP_FEATURES="nostacksampling,js,fileio" is to avoid bug 1699681. These 2 bugs are usually encountered together when using the default feature set.

Comment 1

[Florian Quèze [:florian]]

Attachment: Bug 1699683 - Uninitialize the IOInterposer at content process shutdown, r=gerald.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/52d8d91ab99c
Uninitialize the IOInterposer at content process shutdown, r=gerald,aklotz.

Comment 3

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/52d8d91ab99c