Bug 158935 - jetsams on brendaneich.com/2015/06/from-asm-js-to-webassembly
Summary: jetsams on brendaneich.com/2015/06/from-asm-js-to-webassembly
Status: REOPENED
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKit Misc. (show other bugs)
Version: Safari 9
Hardware: iPhone / iPad iOS 9.3
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2016-06-20 03:55 PDT by Louis Romero
Modified: 2017-07-04 10:40 PDT (History)
4 users (show)

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Description Louis Romero 2016-06-20 03:55:48 PDT 
Steps to reproduce: 
- Open https://brendaneich.com/2015/06/from-asm-js-to-webassembly/
- Scroll through the page, zoom.

Observed behavior: 
- At some point it crashes.

Expected behavior: 
- No crash.


This is likely an OOM issue where the layout takes too much memory.
Comment 1 JF Bastien 2017-03-22 03:13:35 PDT 
I'm not able to repro this issue on trunk.
Comment 2 Louis Romero 2017-03-22 03:54:28 PDT 
I repro on Safari iOS 10.2 with iPhone 7 Plus.
Comment 3 Louis Romero 2017-07-04 09:57:41 PDT 
I still repro on Safari iOS 11 beta 1, with iPad Pro 12 and iPhone 6S Plus.
Comment 4 Ryosuke Niwa 2017-07-04 10:39:20 PDT 
Reproduction steps:
Scroll down to where "JavaScript at 20 / Brendan Eich" slide is and then pinch zoom in & out. WebContent process jetsams.

I can reproduce this on iPhone 7.
Comment 5 Radar WebKit Bug Importer 2017-07-04 10:40:04 PDT 
<rdar://problem/33125175>