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Issue 855878 link

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Issue metadata

Status: Verified
Owner:
Last visit > 30 days ago
Closed: Jul 3
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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CHECK failure: LayoutPoint(IntPoint(paint_offset.X().ToInt(), paint_offset.Y().ToInt())) == pai

Project Member Reported by ClusterFuzz, Jun 23 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6639051885772800

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_debug_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  LayoutPoint(IntPoint(paint_offset.X().ToInt(), paint_offset.Y().ToInt())) == pai
  blink::ViewPainter::Paint
  blink::LayoutView::Paint
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_debug_chrome&range=569874:569875

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6639051885772800

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Jun 23 2018

Components: Blink>Layout Blink>Paint
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 2 by ClusterFuzz, Jun 23 2018

Cc: chrome-release-bot@chromium.org
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

Updating trunk VERSION from 3470.0 to 3471.0 by chrome-release-bot@chromium.org - https://chromium.googlesource.com/chromium/src/+/d23e33081122f79de9ef059f4cdedc4c4fb96458

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
Cc: -chrome-release-bot@chromium.org
Labels: -Pri-1 Pri-2
Owner: trchen@chromium.org
Status: Assigned (was: Untriaged)
trchen@, is this something we need to have as P1? If so set back. Also re-assign if this is someone else's territory.

Comment 4 by trchen@chromium.org, Jun 25 2018

Hmm, this is very sketchy. Obviously the bisect is wrong, but I can reliably repro this locally so it's probably not a flake.

I also guessed that it is probably clamping problem, but the raw (unnormalized) value of paint_offset was (-1, 0). While I don't think this is a big issue, but worth to be investigated when I have spare cycles.
Project Member

Comment 5 by ClusterFuzz, Jul 3

ClusterFuzz has detected this issue as fixed in range 572098:572099.

Detailed report: https://clusterfuzz.com/testcase?key=6639051885772800

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_debug_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  LayoutPoint(IntPoint(paint_offset.X().ToInt(), paint_offset.Y().ToInt())) == pai
  blink::ViewPainter::Paint
  blink::LayoutView::Paint
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_debug_chrome&range=569874:569875
Fixed: https://clusterfuzz.com/revisions?job=linux_debug_chrome&range=572098:572099

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6639051885772800

See https://github.com/google/clusterfuzz-tools for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 6 by ClusterFuzz, Jul 3

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6639051885772800 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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