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Regression: Chrome crash is seen on when we continuously increase the display resolution and rest back to normal size |
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Issue descriptionChrome Version:71.0.3562.0/11106.0.0 dev channel Blaze,Candy,Paine OS: Chrome OS What steps will reproduce the problem? (1)Sign into user >> Launch Chrome,minimize the window (2)Place the mouse pointer on the Chrome icon pinned to shelf (3)Now continuously increase the display resolution(press Ctrl+shift+(+)) and rest back(press Ctrl+shift+0) and observe chrome crashes Actual: Chrome crash is seen on when we continuously increase the display resolution and rest back to normal size Expected: Chrome shouldn't get crash This is a Regression issue as same is working fine in 70.0.3538.22/11021.19.0 beta channel and 71.0.3544.0/11061.0.0 dev Crash Ids: ---------- dfafd3464169fcaa 4346b79de17bc41e 4c60bff80559e020 a13bf9a2ca5aca69 Link to the list of builds: --------------------------- https://crash.corp.google.com/browse?q=product_name%3D%27Chrome_ChromeOS%27++AND+expanded_custom_data.ChromeCrashProto.ptype%3D%27browser%27+AND+expanded_custom_data.ChromeCrashProto.magic_signature_1.name%3D%27ui%3A%3ALayer%3A%3AOnDeviceScaleFactorChanged%27 Issue seems to be related to https://chromium-review.googlesource.com/c/chromium/src/+/1222607 @fsamuel:Could you please take a look into this issue and confirm whether it is related to your change,if not please help us in reassigning to its right owner. Thank you!
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Oct 12
This issue is marked RBB, beta is coming soon. CC'ing a few people to help find an owner. Thanks
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Oct 12
Malay, can you please take a look?
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Oct 16
Hi Malay, Can you please provide a status update as this is marked as RBB. Thanks
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Oct 16
This bug is not RBB as it does not have a straight forward repro that the user may encounter. Also this has been happening for quite a few milestones.
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Oct 16
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Oct 16
Do we have a bisect in 70.0.3538.22/11021.19.0 beta channel and 71.0.3544.0/11061.0.0 dev? The change linked in #1 is not related to this bug.
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Oct 16
Malay, is it possible to deduce what might be broken by looking at the "Source" tab in this report? https://crash.corp.google.com/browse?q=product_name%3D%27Chrome_ChromeOS%27++AND+expanded_custom_data.ChromeCrashProto.ptype%3D%27browser%27+AND+expanded_custom_data.ChromeCrashProto.magic_signature_1.name%3D%27ui%3A%3ALayer%3A%3AOnDeviceScaleFactorChanged%27&stbtiq=&reportid=d73254d0886aacba&index=0#4 In some cases we might be able to guess the cause of the crash without actually being able to repro.
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Oct 17
Its hard to say. The bug is caused when a deleted layer or a layer delegate in the hierarchy is triggered for update due to a change in zoom level. But which layer in the hierarchy is hard to find without manual debugging. This happens in multiple scenarios: - Changing zoom level in overview mode - Changing zoom level when launcher is open - This bug. But its not a consistent repro as can be seen from the video in #1. There is some race condition that causes one of the layer/layer delegate in the hierarchy to be deleted before an update is cascaded. But I am curious if some layer was added between 70.0.3538.22/11021.19.0 beta channel and 71.0.3544.0/11061.0.0 that is causing this. A bisect would greatly help in that.
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Oct 17
@weidong +newcomer From the video the shelf changes shape from rounded corner to a rect. Is there some layer changes happening here?
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Oct 17
The rounded corner issue seems to be related to bug 886622 .
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Oct 17
This is definitely not related to my patch. My patch is Android only.
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Oct 17
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Comment 1 by rkalavakuntla@chromium.org
, Oct 8