<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>241478</bug_id>
          
          <creation_ts>2022-06-09 11:26:48 -0700</creation_ts>
          <short_desc>Huge or many textures can crash Safari</short_desc>
          <delta_ts>2022-06-16 11:27:13 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>WebGL</component>
          <version>Safari 15</version>
          <rep_platform>iPhone / iPad</rep_platform>
          <op_sys>iOS 15</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Takahiro Aoyagi">taoyagi</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>brianpeiris</cc>
    
    <cc>dino</cc>
    
    <cc>kbr</cc>
    
    <cc>kkinnunen</cc>
    
    <cc>kpiddington</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1875054</commentid>
    <comment_count>0</comment_count>
    <who name="Takahiro Aoyagi">taoyagi</who>
    <bug_when>2022-06-09 11:26:48 -0700</bug_when>
    <thetext>iOS Safari can crash or a web page can be unexpectedly refreshed if huge or many textures are uploaded in a web page.

This is a simple test reproducing the problem. The test just loads image(s) and uploads texture(s) with gl.texImage2D().

https://takahirox.github.io/ios-render-test/simple.html

How to test
* Access the test page
* Select texture num (Safari can crash more easily with larger number)
* Click Run button

In our tests, we confirmed that iOS Safari crashed or the web page was unexpectedly refreshed on

iPhoneX Safari iOS 15.5: 3 or 4 textures
iPhone 11 iOS 15.5: 1 texture

Refer to https://github.com/mozilla/hubs/issues/4669#issuecomment-1150543088 for more results.

This problem is not reproducible on Windows Chrome or Android Chrome. So it may be an iOS Safari specific problem.

iOS Chrome may seem to have a same problem. So more precisely, the problem might be iOS specific rather than iOS Safari specific.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1876287</commentid>
    <comment_count>1</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2022-06-16 11:27:13 -0700</bug_when>
    <thetext>&lt;rdar://problem/95316524&gt;</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>