1606499 - Intermittent Assertion failure: aTerminated || mDocument->GetReadyStateEnum() == Document::READYSTATE_LOADING (Bad readyState), at src/dom/base/nsContentSink.cpp:1376

Status: RESOLVED FIXED

(Core :: DOM: Core & HTML, defect, P2)

Description

[Tyson Smith [:tsmith]]

Attachment: testcase.html

Reduced with m-c:
BuildID=20191231094349
SourceStamp=66a1c07a8f48c5129aa3867813bacb6e7ef22d8c

I'm not sure if this is just a dupe of bug 1423202 or not. Either way this has a simple reliable test case.

Assertion failure: aTerminated || mDocument->GetReadyStateEnum() == Document::READYSTATE_LOADING (Bad readyState), at src/dom/base/nsContentSink.cpp:1376

#0 nsContentSink::DidBuildModelImpl(bool) src/dom/base/nsContentSink.cpp:1394:25
#1 nsHtml5TreeOpExecutor::DidBuildModel(bool) src/parser/html/nsHtml5TreeOpExecutor.cpp:170:3
#2 nsHtml5TreeOpExecutor::FlushDocumentWrite() src/parser/html/nsHtml5TreeOpExecutor.cpp:635:5
#3 nsHtml5Parser::ParseUntilBlocked() src/parser/html/nsHtml5Parser.cpp:577:22
#4 nsHtml5Parser::Parse(nsTSubstring<char16_t> const&, void*, bool) src/parser/html/nsHtml5Parser.cpp:213:14
#5 mozilla::dom::Document::Close(mozilla::ErrorResult&) src/dom/base/Document.cpp:8943:14
#6 mozilla::dom::Document_Binding::close(JSContext*, JS::Handle<JSObject*>, void*, JSJitMethodCallArgs const&) src/obj-firefox/dom/bindings/DocumentBinding.cpp:3069:24
#7 bool mozilla::dom::binding_detail::GenericMethod<mozilla::dom::binding_detail::NormalThisPolicy, mozilla::dom::binding_detail::ThrowExceptions>(JSContext*, unsigned int, JS::Value*) src/dom/bindings/BindingUtils.cpp:3151:13
#8 CallJSNative(JSContext*, bool (*)(JSContext*, unsigned int, JS::Value*), js::CallReason, JS::CallArgs const&) src/js/src/vm/Interpreter.cpp:452:13
#9 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) src/js/src/vm/Interpreter.cpp:544:12
#10 InternalCall(JSContext*, js::AnyInvokeArgs const&, js::CallReason) src/js/src/vm/Interpreter.cpp:608:10
#11 Interpret(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:3037:16
#12 js::RunScript(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:424:10
#13 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) src/js/src/vm/Interpreter.cpp:580:13
#14 InternalCall(JSContext*, js::AnyInvokeArgs const&, js::CallReason) src/js/src/vm/Interpreter.cpp:608:10
#15 js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>, js::CallReason) src/js/src/vm/Interpreter.cpp:625:8
#16 JS::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) src/js/src/jsapi.cpp:2753:10
#17 mozilla::dom::Function::Call(JSContext*, JS::Handle<JS::Value>, nsTArray<JS::Value> const&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&) src/obj-firefox/dom/bindings/FunctionBinding.cpp:41:8
#18 void mozilla::dom::Function::Call<nsCOMPtr<nsIGlobalObject> >(nsCOMPtr<nsIGlobalObject> const&, nsTArray<JS::Value> const&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&, char const*, mozilla::dom::CallbackObject::ExceptionHandling, JS::Realm*) src/obj-firefox/dist/include/mozilla/dom/FunctionBinding.h:73:12
#19 mozilla::dom::CallbackTimeoutHandler::Call(char const*) src/dom/base/TimeoutHandler.cpp:167:29
#20 nsGlobalWindowInner::RunTimeoutHandler(mozilla::dom::Timeout*, nsIScriptContext*) src/dom/base/nsGlobalWindowInner.cpp:5866:38
#21 mozilla::dom::TimeoutManager::RunTimeout(mozilla::TimeStamp const&, mozilla::TimeStamp const&, bool) src/dom/base/TimeoutManager.cpp:891:44
#22 mozilla::dom::TimeoutExecutor::MaybeExecute() src/dom/base/TimeoutExecutor.cpp:179:11
#23 mozilla::dom::TimeoutExecutor::Run() src/dom/base/TimeoutExecutor.cpp:234:5
#24 mozilla::ThrottledEventQueue::Inner::ExecuteRunnable() src/xpcom/threads/ThrottledEventQueue.cpp:252:22
#25 mozilla::ThrottledEventQueue::Inner::Executor::Run() src/xpcom/threads/ThrottledEventQueue.cpp:80:15
#26 mozilla::SchedulerGroup::Runnable::Run() src/xpcom/threads/SchedulerGroup.cpp:282:20
#27 nsThread::ProcessNextEvent(bool, bool*) src/xpcom/threads/nsThread.cpp:1241:14
#28 NS_ProcessNextEvent(nsIThread*, bool) src/xpcom/threads/nsThreadUtils.cpp:486:10
#29 mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) src/ipc/glue/MessagePump.cpp:87:21
#30 MessageLoop::RunInternal() src/ipc/chromium/src/base/message_loop.cc:315:10
#31 MessageLoop::Run() src/ipc/chromium/src/base/message_loop.cc:290:3
#32 nsBaseAppShell::Run() src/widget/nsBaseAppShell.cpp:137:27
#33 XRE_RunAppShell() src/toolkit/xre/nsEmbedFunctions.cpp:946:20
#34 mozilla::ipc::MessagePumpForChildProcess::Run(base::MessagePump::Delegate*) src/ipc/glue/MessagePump.cpp:237:9
#35 MessageLoop::RunInternal() src/ipc/chromium/src/base/message_loop.cc:315:10
#36 MessageLoop::Run() src/ipc/chromium/src/base/message_loop.cc:290:3
#37 XRE_InitChildProcess(int, char**, XREChildData const*) src/toolkit/xre/nsEmbedFunctions.cpp:781:34
#38 content_process_main(mozilla::Bootstrap*, int, char**) src/browser/app/../../ipc/contentproc/plugin-container.cpp:56:28
#39 main src/browser/app/nsBrowserApp.cpp:303:18

Comment 1

[Tyson Smith [:tsmith]]

A Pernosco session is available here: https://pernos.co/debug/l4K5PT7xY6Dyw01aFBkd8w/index.html

Comment 2

[Hsin-Yi Tsai (she/her) [:hsinyi]]

(In reply to Tyson Smith [:tsmith] (PTO Jan 6 - 15) from comment #1)

A Pernosco session is available here: https://pernos.co/debug/l4K5PT7xY6Dyw01aFBkd8w/index.html

Thanks! Perhaps Alphan can take look and confirm if it's a dupe of bug 1423202, when he's back.

Comment 3

[Alphan Chen [:alchen]]

It is not that easy to say they are definitely the same.
But I will say that the root cause may be the same.
The two testcases have similar behavior.

1. Did some document operation.
2. Do reload() continueously.

Since this testcase is simpler and there is pernosco session here,
I will investigate the symptom based on this bug when I have time.

Comment 4

[Intermittent Failures Robot]

17 failures in 4949 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 12
• try: 2
• mozilla-central: 3

Platform breakdown:

• linux1804-64: 7
• macosx1014-64: 10

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-06-01&endday=2020-06-07&tree=all

Comment 5

[Atila Butkovits]

In the past week there were 24 failures on:
-macosx1014-64 debug
-linux1804-64 debug

Recent log:
https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=306203506&repo=autoland&lineNumber=1242

Could you take a look?

Comment 6

[Intermittent Failures Robot]

30 failures in 5211 pushes (0.006 failures/push) were associated with this bug in the last 7 days.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 24
• try: 3
• mozilla-central: 3

Platform breakdown:

• linux1804-64: 9
• macosx1014-64: 21

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-06-08&endday=2020-06-14&tree=all

Comment 7

[Alphan Chen [:alchen]]

Currently, I am occupied by other urgent tasks and won't have immediate action right now.
Keep an eye on this failure first.

Comment 8

[Intermittent Failures Robot]

23 failures in 4035 pushes (0.006 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 18
• try: 3
• mozilla-central: 2

Platform breakdown:

• macosx1014-64: 18
• linux1804-64: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-06-15&endday=2020-06-21&tree=all

Comment 9

[Razvan Maries]

There are 24 total failures in the last 7 days: https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?startday=2020-06-19&endday=2020-06-26&tree=trunk&bug=1606499

Recent failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=307670394&repo=autoland&lineNumber=2295

Comment 10

[Intermittent Failures Robot]

31 failures in 5252 pushes (0.006 failures/push) were associated with this bug in the last 7 days.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 24
• try: 4
• mozilla-central: 3

Platform breakdown:

• macosx1014-64: 19
• linux1804-64: 10
• windows7-32: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-06-22&endday=2020-06-28&tree=all

Comment 11

[Andreea Pavel [:apavel]]

There are 40 total failures in the last 7 days on linux1804-64, macosx1014-64 debug

Recent failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=308560102&repo=autoland&lineNumber=2830

[task 2020-07-04T10:19:08.724Z] 10:19:08 INFO - TEST-START | browser/base/content/test/siteIdentity/browser_bug822367.js
[task 2020-07-04T10:19:08.766Z] 10:19:08 INFO - GECKO(1221) | [Child 1231: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 0x123a47c00 == 2 [pid = 1231] [id = {57cea926-5dae-d640-b6b8-11ff40994f39}]
[task 2020-07-04T10:19:08.767Z] 10:19:08 INFO - GECKO(1221) | [Child 1231: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 3 (0x123a7a7d0) [pid = 1231] [serial = 3] [outer = 0x0]
[task 2020-07-04T10:19:08.768Z] 10:19:08 INFO - GECKO(1221) | [Child 1231: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 4 (0x123c04000) [pid = 1231] [serial = 4] [outer = 0x123a7a7d0]
[task 2020-07-04T10:19:08.801Z] 10:19:08 INFO - GECKO(1221) | [Child 1231: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 5 (0x123c06c00) [pid = 1231] [serial = 5] [outer = 0x123a7a7d0]
[task 2020-07-04T10:19:08.905Z] 10:19:08 INFO - GECKO(1221) | [Child 1231, Main Thread] WARNING: NS_ENSURE_TRUE(info) failed: file /builds/worker/checkouts/gecko/extensions/permissions/PermissionDelegateHandler.cpp, line 351
[task 2020-07-04T10:19:08.906Z] 10:19:08 INFO - GECKO(1221) | [Child 1231: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 6 (0x123c8a000) [pid = 1231] [serial = 6] [outer = 0x123a7a7d0]

[task 2020-07-04T10:19:16.467Z] 10:19:16 INFO - GECKO(1221) | [Child 1231: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 21 (0x14e6c4000) [pid = 1231] [serial = 21] [outer = 0x14e65e430]
[task 2020-07-04T10:19:16.489Z] 10:19:16 INFO - GECKO(1221) | [Child 1223: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 3 (0x11e270f60) [pid = 1223] [serial = 5] [outer = 0x0] [url = https://example.com/browser/browser/base/content/test/siteIdentity/file_bug1045809_1.html]
[task 2020-07-04T10:19:16.522Z] 10:19:16 INFO - GECKO(1221) | Assertion failure: aTerminated || mDocument->GetReadyStateEnum() == Document::READYSTATE_LOADING (Bad readyState), at /builds/worker/checkouts/gecko/dom/base/nsContentSink.cpp:1420
[task 2020-07-04T10:19:16.531Z] 10:19:16 INFO - Initializing stack-fixing for the first stack frame, this may take a while...
[task 2020-07-04T10:19:31.378Z] 10:19:31 INFO - GECKO(1221) | #01: nsHtml5TreeOpExecutor::DidBuildModel(bool) [parser/html/nsHtml5TreeOpExecutor.cpp:173]
[task 2020-07-04T10:19:31.378Z] 10:19:31 INFO - GECKO(1221) | #02: nsHtml5TreeOpExecutor::FlushDocumentWrite() [parser/html/nsHtml5TreeOpExecutor.cpp:638]
[task 2020-07-04T10:19:31.378Z] 10:19:31 INFO - GECKO(1221) | #03: nsHtml5Parser::ParseUntilBlocked() [parser/html/nsHtml5Parser.cpp:581]
[task 2020-07-04T10:19:31.379Z] 10:19:31 INFO - GECKO(1221) | #04: nsHtml5TreeOpExecutor::RunFlushLoop() [parser/html/nsHtml5TreeOpExecutor.cpp:452]
[task 2020-07-04T10:19:31.379Z] 10:19:31 INFO - GECKO(1221) | #05: nsHtml5ExecutorReflusher::Run() [parser/html/nsHtml5TreeOpExecutor.cpp:0]
[task 2020-07-04T10:19:31.379Z] 10:19:31 INFO - GECKO(1221) | #06: mozilla::SchedulerGroup::Runnable::Run() [xpcom/threads/SchedulerGroup.cpp:146]
[task 2020-07-04T10:19:31.379Z] 10:19:31 INFO - GECKO(1221) | #07: mozilla::RunnableTask::Run() [xpcom/threads/TaskController.cpp:210]
[task 2020-07-04T10:19:31.379Z] 10:19:31 INFO - GECKO(1221) | #08: mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [xpcom/threads/TaskController.cpp:459]
[task 2020-07-04T10:19:31.379Z] 10:19:31 INFO - GECKO(1221) | #09: mozilla::TaskController::ExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [xpcom/threads/TaskController.cpp:338]
[task 2020-07-04T10:19:31.379Z] 10:19:31 INFO - GECKO(1221) | #10: mozilla::TaskController::ProcessPendingMTTask() [xpcom/threads/TaskController.cpp:154]
[task 2020-07-04T10:19:31.379Z] 10:19:31 INFO - GECKO(1221) | #11: mozilla::detail::RunnableFunction<mozilla::TaskController::InitializeInternal()::$_5>::Run() [xpcom/threads/nsThreadUtils.h:578]
[task 2020-07-04T10:19:31.380Z] 10:19:31 INFO - GECKO(1221) | #12: nsThread::ProcessNextEvent(bool, bool*) [xpcom/threads/nsThread.cpp:1236]
[task 2020-07-04T10:19:31.380Z] 10:19:31 INFO - GECKO(1221) | #13: NS_ProcessNextEvent(nsIThread*, bool) [xpcom/threads/nsThreadUtils.cpp:513]
[task 2020-07-04T10:19:31.380Z] 10:19:31 INFO - GECKO(1221) | #14: mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) [ipc/glue/MessagePump.cpp:87]
[task 2020-07-04T10:19:31.380Z] 10:19:31 INFO - GECKO(1221) | #15: MessageLoop::Run() [ipc/chromium/src/base/message_loop.cc:310]
[task 2020-07-04T10:19:31.380Z] 10:19:31 INFO - GECKO(1221) | #16: nsBaseAppShell::Run() [widget/nsBaseAppShell.cpp:139]
[task 2020-07-04T10:19:31.380Z] 10:19:31 INFO - GECKO(1221) | #17: nsAppShell::Run() [widget/cocoa/nsAppShell.mm:694]
[task 2020-07-04T10:19:31.380Z] 10:19:31 INFO - GECKO(1221) | #18: XRE_RunAppShell() [toolkit/xre/nsEmbedFunctions.cpp:913]
[task 2020-07-04T10:19:31.381Z] 10:19:31 INFO - GECKO(1221) | #19: mozilla::ipc::MessagePumpForChildProcess::Run(base::MessagePump::Delegate*) [ipc/glue/MessagePump.cpp:237]
[task 2020-07-04T10:19:31.386Z] 10:19:31 INFO - GECKO(1221) | #20: MessageLoop::Run() [ipc/chromium/src/base/message_loop.cc:310]
[task 2020-07-04T10:19:31.386Z] 10:19:31 INFO - GECKO(1221) | #21: XRE_InitChildProcess(int, char**, XREChildData const*) [toolkit/xre/nsEmbedFunctions.cpp:748]
[task 2020-07-04T10:19:31.386Z] 10:19:31 INFO - fix-stacks error: failed to read breakpad symbols dir /Users/cltbld/tasks/task_1593857471/build/symbols/plugin-container for /Users/cltbld/tasks/task_1593857471/build/application/Firefox NightlyDebug.app/Contents/MacOS/plugin-container.app/Contents/MacOS/plugin-container
[task 2020-07-04T10:19:31.386Z] 10:19:31 INFO - fix-stacks note: this is expected and harmless for system libraries on debug automation runs
[task 2020-07-04T10:19:31.387Z] 10:19:31 INFO - GECKO(1221) | #22: main [/Users/cltbld/tasks/task_1593857471/build/application/Firefox NightlyDebug.app/Contents/MacOS/plugin-container.app/Contents/MacOS/plugin-container + 0xf0b]
[task 2020-07-04T10:19:31.387Z] 10:19:31 INFO - GECKO(1221) | [Parent 1221, Unnamed thread 10804e540] WARNING: Resource acquired is being released in non-LIFO order; why?
[task 2020-07-04T10:19:31.387Z] 10:19:31 INFO - GECKO(1221) | : file /builds/worker/checkouts/gecko/xpcom/threads/BlockingResourceBase.cpp, line 292
[task 2020-07-04T10:19:31.387Z] 10:19:31 INFO - GECKO(1221) | --- Mutex : dumpSafetyLock (currently acquired)
[task 2020-07-04T10:19:31.387Z] 10:19:31 INFO - GECKO(1221) | calling context
[task 2020-07-04T10:19:31.387Z] 10:19:31 INFO - GECKO(1221) | [stack trace unavailable]

Alphan, did you by any change have the time to take a look?

Comment 12

[Intermittent Failures Robot]

40 failures in 4516 pushes (0.009 failures/push) were associated with this bug in the last 7 days.

This is the #39 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• try: 1
• autoland: 34
• mozilla-central: 4
• mozilla-beta: 1

Platform breakdown:

• linux1804-64: 12
• macosx1014-64: 24
• windows7-32: 2
• windows10-64-qr: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-06-29&endday=2020-07-05&tree=all

Comment 13

[Hsin-Yi Tsai (she/her) [:hsinyi]]

John, please help take a look this week. Thank you.

Comment 14

[John Dai[:jdai]]

(In reply to Hsin-Yi Tsai [:hsinyi] from comment #13)

John, please help take a look this week. Thank you.

The test is executing document.close(), however, the document.readyState is still in the loading state due to location.reload() so that hit the assertion[1].

[1] https://searchfox.org/mozilla-central/rev/85ae3b911d5fcabd38ef315725df32e25edef83b/dom/base/nsContentSink.cpp#1418-1419

Comment 15

[Emilio Cobos Álvarez (:emilio)]

That patch only removed a null-check, the assertion was already there.

The ready state gets set to COMPLETE from here:

#0  mozilla::dom::Document::SetReadyStateInternal (this=0x7f6d5b3f8000, aReadyState=mozilla::dom::Document::READYSTATE_COMPLETE, aUpdateTimingInformation=false) at /builds/worker/workspace/build/src/dom/base/Document.cpp:11136
#1  0x00007f6d660e7ed6 in nsDocLoader::DocLoaderIsEmpty (this=0x7f6d5f1f6000, aFlushLayout=<optimized out>) at /builds/worker/workspace/build/src/uriloader/base/nsDocLoader.cpp:749
#2  0x00007f6d660e78ea in nsDocLoader::Stop (this=0x7f6d5f1f6000) at /builds/worker/workspace/build/src/uriloader/base/nsDocLoader.cpp:256
#3  0x00007f6d68e5a99b in nsDocShell::Stop (this=0x7f6d5f1f6000) at /builds/worker/workspace/build/src/docshell/base/nsDocShell.h:208
#4  nsDocShell::Stop (this=0x7f6d5f1f6000, aStopFlags=1) at /builds/worker/workspace/build/src/docshell/base/nsDocShell.cpp:4284
#5  0x00007f6d68e505de in nsDocShell::InternalLoad (this=0x7f6d5f1f6000, aLoadState=<optimized out>, aDocShell=<optimized out>, aRequest=<optimized out>) at /builds/worker/workspace/build/src/docshell/base/nsDocShell.cpp:9094
#6  0x00007f6d68e63966 in nsDocShell::LoadHistoryEntry (this=0x7f6d5f1f6000, aEntry=<optimized out>, aLoadType=2) at /builds/worker/workspace/build/src/docshell/base/nsDocShell.cpp:11374
#7  0x00007f6d68e711fc in nsDocShell::Reload (this=0x7f6d5f1f6000, aReloadFlags=<optimized out>) at /builds/worker/workspace/build/src/docshell/base/nsDocShell.cpp:4171
#8  0x00007f6d6672c837 in mozilla::dom::Location::Reload (this=<optimized out>, aForceget=false, aRv=...) at /builds/worker/workspace/build/src/dom/base/Location.cpp:583
#9  0x00007f6d669cb48c in mozilla::dom::Location_Binding::reload (cx=0x7f6d5f01b000, obj=..., void_self=0x7f6d5b3a6640, args=...) at LocationBinding.cpp:1141

So the question is what should happen, I guess. Henri, what should guarantee that the readystate assertion holds in this case?

Comment 16

[Intermittent Failures Robot]

24 failures in 5265 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 16
• mozilla-central: 4
• try: 2
• mozilla-beta: 2

Platform breakdown:

• macosx1014-64: 22
• linux1804-64: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-07-06&endday=2020-07-12&tree=all

Comment 17

[Bogdan Tara[:bogdan_tara | bogdant]]

In the last 7 days there have been 23 occurrences on macosx1014-64 and linux1804-64 debug.

Recent failure: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=310259905&repo=mozilla-central&lineNumber=2420

Comment 18

[Intermittent Failures Robot]

25 failures in 4014 pushes (0.006 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 14
• mozilla-beta: 1
• mozilla-central: 6
• try: 4

Platform breakdown:

• linux1804-64: 5
• macosx1014-64: 20

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-07-13&endday=2020-07-19&tree=all

Comment 19

[Intermittent Failures Robot]

23 failures in 4310 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 15
• try: 5
• mozilla-central: 3

Platform breakdown:

• macosx1014-64: 16
• linux1804-64: 6
• linux1804-64-asan: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-07-20&endday=2020-07-26&tree=all

Comment 20

[Intermittent Failures Robot]

19 failures in 4289 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 17
• try: 1
• mozilla-central: 1

Platform breakdown:

• macosx1014-64: 16
• linux1804-64: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-07-27&endday=2020-08-02&tree=all

Comment 21

[Atila Butkovits]

This bug failed 42 times in the last 7 days on linux1804-64 and macosx1014-64 debug.

Recent failure log:
https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=312421333&repo=autoland&lineNumber=5115

Comment 22

[Intermittent Failures Robot]

40 failures in 4618 pushes (0.009 failures/push) were associated with this bug in the last 7 days.

This is the #29 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 35
• try: 2
• mozilla-central: 3

Platform breakdown:

• macosx1014-64: 30
• linux1804-64: 10

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-08-03&endday=2020-08-09&tree=all

Comment 23

[Intermittent Failures Robot]

15 failures in 3601 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 10
• mozilla-central: 4
• try: 1

Platform breakdown:

• linux1804-64: 6
• macosx1014-64: 9

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-08-10&endday=2020-08-16&tree=all

Comment 24

[Henri Sivonen (:hsivonen)]

Caught in Pernosco! https://pernos.co/debug/-ukMnEseJEYvX_BAeKZTow/index.html

Comment 25

[Intermittent Failures Robot]

15 failures in 4100 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 3
• autoland: 12

Platform breakdown:

• macosx1014-64: 8
• linux1804-64: 7

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-08-17&endday=2020-08-23&tree=all

Comment 26

[Jens Stutte [:jstutte]]

Might this be related to Document::NotifyAbortedLoad introduced with bug 1620679 ?

Comment 27

[Henri Sivonen (:hsivonen)]

(In reply to Jens Stutte [:jstutte] (REO for FF 81) from comment #26)

Might this be related to Document::NotifyAbortedLoad introduced with bug 1620679 ?

At least in the Pernosco trace that methods returns early and does not end up changing the readyState.

Comment 28

[Henri Sivonen (:hsivonen)]

(In reply to Henri Sivonen (:hsivonen) from comment #27)

(In reply to Jens Stutte [:jstutte] (REO for FF 81) from comment #26)

Might this be related to Document::NotifyAbortedLoad introduced with bug 1620679 ?

At least in the Pernosco trace that methods returns early and does not end up changing the readyState.

Ah, the part of the method that does run is relevant after all! Good catch! Thanks!

Current hypothesis: document.open doesn't set mSetCompleteAfterDOMContentLoaded, which was added there, back to false.

Comment 29

[Henri Sivonen (:hsivonen)]

Attachment: Bug 1606499 - Reset mSetCompleteAfterDOMContentLoaded in Document::Open().

Comment 30

[Henri Sivonen (:hsivonen)]

The patch fixes a different bug than the one originally reported here. I'll mint a new bug number and move the patch.

Comment 31

[Phabricator Automation]

Comment on attachment 9171653 [details]
Bug 1606499 - Reset mSetCompleteAfterDOMContentLoaded in Document::Open().

Revision D88008 was moved to bug 1660764. Setting attachment 9171653 [details] to obsolete.

Comment 32

[Henri Sivonen (:hsivonen)]

Filed bug 1660764.

Comment 33

[Intermittent Failures Robot]

15 failures in 4046 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 11
• try: 3
• mozilla-beta: 1

Platform breakdown:

• linux1804-64: 4
• macosx1014-64: 5
• windows10-64: 2
• linux1804-64-qr: 2
• windows7-32: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1606499&startday=2020-08-24&endday=2020-08-30&tree=all

Comment 34

[Jens Stutte [:jstutte]]

(In reply to Henri Sivonen (:hsivonen) from comment #30)

The patch fixes a different bug than the one originally reported here. I'll mint a new bug number and move the patch.

As this still triggers quite often: Any idea how to proceed here?

Comment 35

[Henri Sivonen (:hsivonen)]

I think the bug is that location.reload() doesn't perform step 11 of "navigate" properly: It should abort the parser. Then, document.close() should return early due to there not being an active script-created parser.

Comment 36

[Henri Sivonen (:hsivonen)]

The code has a comment about not firing the load event. Let's see if tests fail when doing a proper abort:
https://treeherder.mozilla.org/#/jobs?repo=try&revision=9bc13c60149ebc0394f86f884ac9e7488db5825f

Comment 37

[Henri Sivonen (:hsivonen)]

Attachment: Bug 1606499 - Abort document on location.reload().

Comment 38

[Henri Sivonen (:hsivonen)]

Blame seems to point to bug 1489308. I'm surprised. I assume bz had some reason not to call StopDocumentLoad().

Comment 39

[Henri Sivonen (:hsivonen)]

With both the readyState change and the abort:
https://treeherder.mozilla.org/#/jobs?repo=try&revision=e995452e8f142fc9da11eccd46e1005839a8826a

Comment 40

[Boris Zbarsky [:bzbarsky]]

I assume bz had some reason not to call StopDocumentLoad()

I don't think it came up. I based this code on nsDocumentViewer::LoadComplete, as I recall, which obviously doesn't do that...

It's worth checking whether the spec needs to say something about this situation; I've more or less paged this stuff out, so can't comment on it intelligently without a bunch of digging.

Comment 41

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/28132cc84517
Abort document on location.reload(). r=smaug

Comment 42

[Henri Sivonen (:hsivonen)]

(In reply to Boris Zbarsky [:bzbarsky] from comment #40)

I assume bz had some reason not to call StopDocumentLoad()

I don't think it came up.

Thanks.

It's worth checking whether the spec needs to say something about this situation; I've more or less paged this stuff out, so can't comment on it intelligently without a bunch of digging.

AFAICT, the spec says "abort" per comment 35. The existing corpus of test cases appears to tolerate an abort here.

Comment 43

[Narcis Beleuzu [:NarcisB]]

https://hg.mozilla.org/mozilla-central/rev/28132cc84517