1613380 - Assertion failure: mNumAutoMarginsInMainAxis == 0 (miscounted the number of auto margins), at /builds/worker/workspace/build/src/layout/generic/nsFlexContainerFrame.cpp:2242

Status: RESOLVED FIXED

(Core :: Layout: Flexbox, defect)

Description

[Jason Kratzer [:jkratzer]]

Attachment: testcase.html

Testcase found while fuzzing mozilla-central rev b95921676bb4.

Assertion failure: mNumAutoMarginsInMainAxis == 0 (miscounted the number of auto margins), at /builds/worker/workspace/build/src/layout/generic/nsFlexContainerFrame.cpp:2242

rax = 0x00005561ad83e340   rdx = 0x0000000000000000
rcx = 0x00007fc42d0333c9   rbx = 0x00007fc41f1941b8
rsi = 0x00007fc438a1f8b0   rdi = 0x00007fc438a1e680
rbp = 0x00007ffef16226d0   rsp = 0x00007ffef1622660
r8 = 0x00007fc438a1f8b0    r9 = 0x00007fc439b86780
r10 = 0x0000000000000000   r11 = 0x0000000000000000
r12 = 0x00007ffef1622678   r13 = 0x00007fc41f1941a0
r14 = 0x00007ffef1622664   r15 = 0x0000000000000000
rip = 0x00007fc42946e672
OS|Linux|0.0.0 Linux 5.3.0-28-generic #30~18.04.1-Ubuntu SMP Fri Jan 17 06:14:09 UTC 2020 x86_64
CPU|amd64|family 6 model 94 stepping 3|8
GPU|||
Crash|SIGSEGV|0x0|0
0|0|libxul.so|nsFlexContainerFrame::FlexLine::PositionItemsInMainAxis(mozilla::StyleContentDistribution const&, int, nsFlexContainerFrame::FlexboxAxisTracker const&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsFlexContainerFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|4029|0x2f
0|1|libxul.so|nsFlexContainerFrame::DoFlexLayout(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&, int, int, nsTArray<nsFlexContainerFrame::StrutInfo>&, nsFlexContainerFrame::FlexboxAxisTracker const&, int, int, bool)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsFlexContainerFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|4736|0x18
0|2|libxul.so|nsFlexContainerFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsFlexContainerFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|4233|0x41
0|3|libxul.so|nsBlockReflowContext::ReflowBlock(mozilla::LogicalRect const&, bool, nsCollapsingMargin&, int, bool, nsLineBox*, mozilla::ReflowInput&, nsReflowStatus&, mozilla::BlockReflowInput&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockReflowContext.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|293|0x11
0|4|libxul.so|nsBlockFrame::ReflowBlockFrame(mozilla::BlockReflowInput&, nsLineList_iterator, bool*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|3796|0x3e
0|5|libxul.so|nsBlockFrame::ReflowLine(mozilla::BlockReflowInput&, nsLineList_iterator, bool*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|3143|0x19
0|6|libxul.so|nsBlockFrame::ReflowDirtyLines(mozilla::BlockReflowInput&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|2686|0x20
0|7|libxul.so|nsBlockFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|1398|0xf
0|8|libxul.so|nsBlockReflowContext::ReflowBlock(mozilla::LogicalRect const&, bool, nsCollapsingMargin&, int, bool, nsLineBox*, mozilla::ReflowInput&, nsReflowStatus&, mozilla::BlockReflowInput&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockReflowContext.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|293|0x11
0|9|libxul.so|nsBlockFrame::ReflowBlockFrame(mozilla::BlockReflowInput&, nsLineList_iterator, bool*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|3796|0x3e
0|10|libxul.so|nsBlockFrame::ReflowLine(mozilla::BlockReflowInput&, nsLineList_iterator, bool*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|3143|0x19
0|11|libxul.so|nsBlockFrame::ReflowDirtyLines(mozilla::BlockReflowInput&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|2686|0x20
0|12|libxul.so|nsBlockFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsBlockFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|1398|0xf
0|13|libxul.so|nsContainerFrame::ReflowChild(nsIFrame*, nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, mozilla::WritingMode const&, mozilla::LogicalPoint const&, nsSize const&, nsIFrame::ReflowChildFlags, nsReflowStatus&, nsOverflowContinuationTracker*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsContainerFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|908|0x1d
0|14|libxul.so|nsCanvasFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsCanvasFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|741|0x1d
0|15|libxul.so|nsContainerFrame::ReflowChild(nsIFrame*, nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, mozilla::WritingMode const&, mozilla::LogicalPoint const&, nsSize const&, nsIFrame::ReflowChildFlags, nsReflowStatus&, nsOverflowContinuationTracker*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsContainerFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|908|0x1d
0|16|libxul.so|nsHTMLScrollFrame::ReflowScrolledFrame(mozilla::ScrollReflowInput*, bool, bool, mozilla::ReflowOutput*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGfxScrollFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|650|0x5
0|17|libxul.so|nsHTMLScrollFrame::ReflowContents(mozilla::ScrollReflowInput*, mozilla::ReflowOutput const&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGfxScrollFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|764|0x2f
0|18|libxul.so|nsHTMLScrollFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsGfxScrollFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|1143|0x8
0|19|libxul.so|nsContainerFrame::ReflowChild(nsIFrame*, nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, int, int, nsIFrame::ReflowChildFlags, nsReflowStatus&, nsOverflowContinuationTracker*)|hg:hg.mozilla.org/mozilla-central:layout/generic/nsContainerFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|948|0x19
0|20|libxul.so|mozilla::ViewportFrame::Reflow(nsPresContext*, mozilla::ReflowOutput&, mozilla::ReflowInput const&, nsReflowStatus&)|hg:hg.mozilla.org/mozilla-central:layout/generic/ViewportFrame.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|299|0x2b
0|21|libxul.so|mozilla::PresShell::DoReflow(nsIFrame*, bool, mozilla::OverflowChangedTracker*)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|9241|0x21
0|22|libxul.so|mozilla::PresShell::ProcessReflowCommands(bool)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|9414|0x11
0|23|libxul.so|mozilla::PresShell::DoFlushPendingNotifications(mozilla::ChangesToFlush)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|4121|0x15
0|24|libxul.so|nsRefreshDriver::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|2056|0x5
0|25|libxul.so|mozilla::RefreshDriverTimer::TickRefreshDrivers(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp, nsTArray<RefPtr<nsRefreshDriver> >&)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|351|0xb
0|26|libxul.so|mozilla::RefreshDriverTimer::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|368|0x12
0|27|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::TickRefreshDriver(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|740|0xf
0|28|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::NotifyVsync(mozilla::VsyncEvent const&)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|635|0x10
0|29|libxul.so|mozilla::layout::VsyncChild::RecvNotify(mozilla::VsyncEvent const&)|hg:hg.mozilla.org/mozilla-central:layout/ipc/VsyncChild.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|64|0x8
0|30|libxul.so|mozilla::layout::PVsyncChild::OnMessageReceived(IPC::Message const&)|s3:gecko-generated-sources:40b57a5f11db1f2975fc13c74f20fea3c72418dd5cc7be16b1724f135b6995163d22588c816f1fb7f6cdadad80e8ed2fcea1ccf234f0788643e6a5e4e1859c1e/ipc/ipdl/PVsyncChild.cpp:|187|0xb
0|31|libxul.so|mozilla::ipc::PBackgroundChild::OnMessageReceived(IPC::Message const&)|s3:gecko-generated-sources:2c00c6e8fe94c4488d1fca390aff0552cb4c3ce40484b98f953b8e69d8f06e217c2149c17ee88489855e4d63a022e5bc503c37aacdd686847caea60851863176/ipc/ipdl/PBackgroundChild.cpp:|5806|0xd
0|32|libxul.so|mozilla::ipc::MessageChannel::DispatchAsyncMessage(mozilla::ipc::ActorLifecycleProxy*, IPC::Message const&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|2214|0x6
0|33|libxul.so|mozilla::ipc::MessageChannel::DispatchMessage(IPC::Message&&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|2136|0xb
0|34|libxul.so|mozilla::ipc::MessageChannel::RunMessage(mozilla::ipc::MessageChannel::MessageTask&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|1975|0xb
0|35|libxul.so|mozilla::ipc::MessageChannel::MessageTask::Run()|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|2006|0xc
0|36|libxul.so|nsThread::ProcessNextEvent(bool, bool*)|hg:hg.mozilla.org/mozilla-central:xpcom/threads/nsThread.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|1220|0xe
0|37|libxul.so|NS_ProcessNextEvent(nsIThread*, bool)|hg:hg.mozilla.org/mozilla-central:xpcom/threads/nsThreadUtils.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|486|0x11
0|38|libxul.so|mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessagePump.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|87|0xa
0|39|libxul.so|MessageLoop::RunInternal()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|315|0x19
0|40|libxul.so|MessageLoop::Run()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|290|0x8
0|41|libxul.so|nsBaseAppShell::Run()|hg:hg.mozilla.org/mozilla-central:widget/nsBaseAppShell.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|137|0xd
0|42|libxul.so|XRE_RunAppShell()|hg:hg.mozilla.org/mozilla-central:toolkit/xre/nsEmbedFunctions.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|943|0x6
0|43|libxul.so|mozilla::ipc::MessagePumpForChildProcess::Run(base::MessagePump::Delegate*)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessagePump.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|237|0x5
0|44|libxul.so|MessageLoop::RunInternal()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|315|0x19
0|45|libxul.so|MessageLoop::Run()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|290|0x8
0|46|libxul.so|XRE_InitChildProcess(int, char**, XREChildData const*)|hg:hg.mozilla.org/mozilla-central:toolkit/xre/nsEmbedFunctions.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|778|0x8
0|47|firefox-bin|content_process_main(mozilla::Bootstrap*, int, char**)|hg:hg.mozilla.org/mozilla-central:ipc/contentproc/plugin-container.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|56|0x14
0|48|firefox-bin|main|hg:hg.mozilla.org/mozilla-central:browser/app/nsBrowserApp.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|303|0x12
0|49|libc-2.27.so||||0x21b97
0|50|firefox-bin|__cxa_throw_bad_array_new_length|hg:hg.mozilla.org/mozilla-central:build/unix/stdc++compat/stdc++compat.cpp:2319a64a3cd8ef4ac0b5a3204da43f8c12bb48fc|82|0x12
0|51|firefox-bin||||0x10e30
0|52|ld-2.27.so||||0x10733
0|53|libdl-2.27.so||||0x202d80
0|54|libpthread-2.27.so||||0x219bb0
0|55|firefox-bin||||0x10e30
0|56|firefox-bin|_start|||0x29

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: testcase 2

Comment 2

[Daniel Holbert [:dholbert]]

Pretty sure this is a regression from bug 1155772. In that bug "part 6" patch, we started storing the flex container's main axis on flex items, but the patch didn't update the second FlexItem() constructor for 'strut' flex items.

This was based on this statement from bug 1155772 comment 8 which turns out not to be true:

For "strut" constructor, we can use the default values for mMainAxis,
mCrossAxis, and mIsInlineAxisMainAxis initialized in the class
declaration.

We have logic that depends on those member variables being correct, it seems. In particular, MainAxisPositionTracker adds up the number of "auto" margins that it expects to see in the main axis, based on asking each flex item how many auto margins it has in the main axis, and then it checks to be sure that it actually traverses that number of margins. (This is an important invariant, because each 'auto' margin gets an equal share of free space. This includes "auto" margins on struts.)

In this case, the strut thinks it's got a nonzero number of auto margins in the main axis, because it's got the wrong idea of what the main axis is. (It thinks it's the inline axis, where it does indeed have one auto margin -- but in fact, the main axis is the block axis.) Note that in the original example here, we had an <hr> element which (also has "auto" margins in the inline axis)[https://searchfox.org/mozilla-central/rev/3a0a8e2762821c6afc1d235b3eb3dde63ad3b01a/layout/style/res/html.css#634,639-640]

So: we might as well just set these three variables (from above-quoted bug 1155772 comment 8) to the correct values in the "strut" constructor. TYLin, would you mind updating the code to do that?

Comment 3

[Daniel Holbert [:dholbert]]

Attachment: testcase 3

Here's a testcase that shows the behavioral issue that this bug causes (when we mis-count the number of auto margins in the main axis, due to getting mixed up about which axis is the main axis).

EXPECTED RESULTS: the text should be snapped to the bottom of the bordered rectangle.
ACTUAL RESULTS: the text is centered within the bordered rectangle (because we choose too small of a value for the auto margins, due to miscounting the number of auto margins, due to being confused about which axis is the main axis)

This test gives EXPECTED RESULTS in a nightly from 2020-01-20, the day before bug 1155772 landed, vs. ACTUAL RESULTS in builds from 2020-01-22 (after that bug landed).

Comment 4

[Daniel Holbert [:dholbert]]

(In reply to Daniel Holbert [:dholbert] from comment #2)

For "strut" constructor, we can use the default values for mMainAxis,
mCrossAxis, and mIsInlineAxisMainAxis initialized in the class
[...]
So: we might as well just set these three variables (from above-quoted bug 1155772 comment 8) to the correct values in the "strut" constructor. TYLin, would you mind updating the code to do that?

Actually, looking at the final patch, I think "main axis" is the one that stuck here & that matters for this bug (we don't actually have mCrossAxis on this struct). (It's a case where our flex positioning code is, as of bug 1155772, trusting the flex item for some information about the flex container's own axes, where previously it was not. So: this is one piece of information that the strut has to be correct about, unlike most of the other information in the strut which can be dummy/bogus simple values.

So we probably just want to make the strut FlexItem constructor start taking a const FlexboxAxisTracker& arg (like a lot of other flexbox methods do) -- it didn't need that previously, but it does now, now that it wants to track the main axis internally. And then that strut constructor should initialize its mMainAxis member based off of that arg, just like the "real" flexitem constructor does.

We also should drop the bogus/default eLogicalAxisInline initialization for this member-var, to force us to initialize it in the constructor and reduce confusion about what its value actually is.

Comment 5

[Ting-Yu Lin [:TYLin] (PDT, UTC-7)]

Sorry for causing the regression. I'll fix this. And thank you for the thorough analysis and the reftest, which makes fixing this bug straightforward!

It's a case where our flex positioning code is, as of bug 1155772, trusting the flex item for some information about the flex container's own axes, where previously it was not. So: this is one piece of information that the strut has to be correct about, unlike most of the other information in the strut which can be dummy/bogus simple values.

At some point of fixing bug 1155772, I realize it's more ergonomic to cache flex container's axis in flex item so that we don't have to pass FlexboxAxisTracker to every flex item's method that needs it.

Comment 6

[Ting-Yu Lin [:TYLin] (PDT, UTC-7)]

Attachment: Bug 1613380 - Use FlexboxAxisTracker's main axis to initialize strut FlexItem's mMainAxis.

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/7dc1fd3fa679
Use FlexboxAxisTracker's main axis to initialize strut FlexItem's mMainAxis. r=dholbert

Comment 8

[Bogdan Tara[:bogdan_tara | bogdant]]

Backed out changeset 7dc1fd3fa679 (Bug 1613380) for optiontext.html failures

Push with failures: https://treeherder.mozilla.org/#/jobs?repo=autoland&searchStr=android%2C7.0%2Cx86-64%2Cdebug%2Creftests%2Ctest-android-em-7.0-x86_64%2Fdebug-geckoview-reftest-e10s&fromchange=7dcafc3988760d66a5587f04cf6b55c25be886a6&tochange=f19bd72436cd128c6161455ec35b5b352a44b130&selectedJob=287876474

Backout link: https://hg.mozilla.org/integration/autoland/rev/f19bd72436cd128c6161455ec35b5b352a44b130

Failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=287876474&repo=autoland&lineNumber=1473

[task 2020-02-07T04:54:30.574Z] 04:54:30     INFO -  REFTEST TEST-START | dom/tests/reftest/optiontext.html == dom/tests/reftest/optiontext-ref.html
[task 2020-02-07T04:54:30.575Z] 04:54:30     INFO -  REFTEST TEST-LOAD | http://10.0.2.2:8854/tests/dom/tests/reftest/optiontext.html | 0 / 7815 (0%)
[task 2020-02-07T04:54:30.576Z] 04:54:30     INFO -  REFTEST INFO | drawWindow flags = DRAWWINDOW_DRAW_CARET | DRAWWINDOW_DRAW_VIEW | DRAWWINDOW_USE_WIDGET_LAYERS; window size = 800,1136; test browser size = 800,1000
[task 2020-02-07T04:54:30.577Z] 04:54:30     INFO -  REFTEST TEST-LOAD | http://10.0.2.2:8854/tests/dom/tests/reftest/optiontext-ref.html | 0 / 7815 (0%)
[task 2020-02-07T04:54:30.582Z] 04:54:30  WARNING -  REFTEST TEST-UNEXPECTED-FAIL | dom/tests/reftest/optiontext.html == dom/tests/reftest/optiontext-ref.html | image comparison, max difference: 4, number of differing pixels: 1
[task 2020-02-07T04:54:30.586Z] 04:54:30     INFO -  REFTEST   IMAGE 1 (TEST): 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[task 2020-02-07T04:54:30.594Z] 04:54:30     INFO -  REFTEST   IMAGE 2 (REFERENCE): 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[task 2020-02-07T04:54:30.598Z] 04:54:30     INFO -  REFTEST INFO | Saved log: START http://10.0.2.2:8854/tests/dom/tests/reftest/optiontext.html
[task 2020-02-07T04:54:30.598Z] 04:54:30     INFO -  REFTEST INFO | Saved log: [CONTENT] Using browser remote=true
[task 2020-02-07T04:54:30.598Z] 04:54:30     INFO -  REFTEST INFO | Saved log: [CONTENT] OnDocumentLoad triggering AfterOnLoadScripts
[task 2020-02-07T04:54:30.599Z] 04:54:30     INFO -  REFTEST INFO | Saved log: Initializing canvas snapshot
[task 2020-02-07T04:54:30.599Z] 04:54:30     INFO -  REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2020-02-07T04:54:30.599Z] 04:54:30     INFO -  REFTEST INFO | Saved log: [CONTENT] RecordResult fired
[task 2020-02-07T04:54:30.599Z] 04:54:30     INFO -  REFTEST INFO | Saved log: RecordResult fired
[task 2020-02-07T04:54:30.599Z] 04:54:30     INFO -  REFTEST INFO | Saved log: START http://10.0.2.2:8854/tests/dom/tests/reftest/optiontext-ref.html
[task 2020-02-07T04:54:30.602Z] 04:54:30     INFO -  REFTEST INFO | Saved log: [CONTENT] OnDocumentLoad triggering AfterOnLoadScripts
[task 2020-02-07T04:54:30.608Z] 04:54:30     INFO -  REFTEST INFO | Saved log: Initializing canvas snapshot
[task 2020-02-07T04:54:30.608Z] 04:54:30     INFO -  REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2020-02-07T04:54:30.609Z] 04:54:30     INFO -  REFTEST INFO | Saved log: [CONTENT] RecordResult fired
[task 2020-02-07T04:54:30.609Z] 04:54:30     INFO -  REFTEST INFO | Saved log: RecordResult fired
[task 2020-02-07T04:54:30.609Z] 04:54:30     INFO -  REFTEST TEST-END | dom/tests/reftest/optiontext.html == dom/tests/reftest/optiontext-ref.html

Comment 9

[Ting-Yu Lin [:TYLin] (PDT, UTC-7)]

OK, this fuzzy fallout occurs to me before in bug 1600534 when I removed imported a bunch of css multicol reftests.

To fix this, I'll add fuzzy notation like

fuzzy-if(Android,0-4,0-1) == optiontext.html optiontext-ref.html

And due to the reftest rebucketing, bug 1600534 no longer happens. I'll remove its fuzzy annotation.

Here is a try run of all the reftests on all platforms by using fuzzy-if(Android,4-4,1-1) == optiontext.html optiontext-ref.html, but it turns out some of the Android runs don't have fuzzy issue, so using 0 for the lower bound in the fuzzy annotation is necessary.

Comment 10

[Daniel Holbert [:dholbert]]

Sounds good to me! Thanks.

Comment 11

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/be3bccf131a3
Use FlexboxAxisTracker's main axis to initialize strut FlexItem's mMainAxis. r=dholbert

Comment 12

[Noemi Erli[:noemi_erli]]

https://hg.mozilla.org/mozilla-central/rev/be3bccf131a3