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Issue 919062 link

Starred by 1 user
Status: Assigned
Owner:
alph@chromium.org
Cc:
vamshi.kommuri@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 1
Type: Bug-Regression



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error in memory allocation timelines

Reported by artur.pr...@mobica.com, Jan 4 
UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36

Steps to reproduce the problem:
1. Open Dev tool, memory tab
2. Run allocatiom timeline test for few second
3. After finished, results are presented 
4. Use drop down for change type from Summary, Containment , Allocation , Statistics
5. Select position Allocation
6. Error present in console
An error occurred when a call to method 'allocationTracesTops' was requested
TypeError: Cannot read property 'serializeTraceTops' of undefined
    at HeapSnapshotWorker.JSHeapSnapshot.allocationTracesTops (chrome-devtools://devtools/bundled/heap_snapshot_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@15234034d19b85dcd9a03b164ae89d04145d8368/&can_dock=true&dockSide=undocked:979:55)
    at HeapSnapshotWorker.HeapSnapshotWorkerDispatcher.dispatchMessage (chrome-devtools://devtools/bundled/heap_snapshot_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@15234034d19b85dcd9a03b164ae89d04145d8368/&can_dock=true&dockSide=undocked:1301:97) 

What is the expected behavior?
No error

What went wrong?
Missing some function or ref

Did this work before? N/A 

Chrome version: 71.0.3578.98  Channel: stable
OS Version: 10.0
Flash Version:

Comment 1 by woxxom@gmail.com, Jan 4 

Bisected to r545549 = 8b97320b87d459af6f3a5bad41f0de1681da394b = crrev.com/c/976557 by alph@chromium.org
"DevTools: Move record allocation stacks option to the memory panel."
Landed in 67.0.3381.0

The problem occurs when the user didn't check the required checkbox in step 1:
[ ] Record allocation stacks (extra performance overhead)

Comment 2 by cyb...@gmail.com, Jan 4 

After error, error counter (this one which is one dev toolbar header) is not present correct error numbers which is different to that show error counter  from console

Comment 3 by phanindra.mandapaka@chromium.org, Jan 5

Labels: Needs-Triage-M71

Comment 4 by vamshi.kommuri@chromium.org, Jan 7

Cc: vamshi.kommuri@chromium.org
Components: Platform>DevTools
Labels: -Type-Bug -Pri-2 Target-73 Triaged-ET RegressedIn-67 Target-71 Target-72 FoundIn-72 M-73 FoundIn-71 FoundIn-73 hasbisect OS-Linux OS-Mac Pri-1 Type-Bug-Regression
Owner: alph@chromium.org
Status: Assigned (was: Unconfirmed)
Thanks for filing the issue!

Able to reproduce the issue on reported chrome version 71.0.3578.98 and on the latest canary 73.0.3663.0 using Windows 10, Ubuntu 14.04 and Mac 10.14.1

Bisect Information:
-------------------
Good Build: 67.0.3379.0
Bad Build:  67.0.3381.0

Suspecting the same from comment#1. 
https://chromium.googlesource.com/chromium/src/+/8b97320b87d459af6f3a5bad41f0de1681da394b
Review URL: https://chromium-review.googlesource.com/976557

@Alexei Filippov: Please help in assigning it to the right owner if this isn't related to your change.
►

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