Bug 213271

Summary: Web Inspector: ASSERTION FAILED: decodedLength >= dataLength at WebCore::NetworkResourcesData::ResourceData::decodeDataToContent()
Product: WebKit Reporter: Devin Rousso <hi>
Component: Web InspectorAssignee: Devin Rousso <hi>
Status: RESOLVED FIXED    
Severity: Normal CC: bburg, ews-watchlist, hi, inspector-bugzilla-changes, joepeck, mjs, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: All   
OS: All   
Attachments:
Description Flags
Patch none

Description Devin Rousso 2020-06-16 16:52:47 PDT
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Comment 1 Devin Rousso 2020-06-16 16:53:07 PDT
<rdar://problem/64168350>
Comment 2 Devin Rousso 2020-06-16 16:57:39 PDT
Created attachment 402055 [details]
Patch
Comment 3 Maciej Stachowiak 2020-06-16 19:30:09 PDT
Comment on attachment 402055 [details]
Patch

Is it possible to add a test case for this?
Comment 4 Devin Rousso 2020-06-18 14:44:21 PDT
(In reply to Maciej Stachowiak from comment #3)
> Comment on attachment 402055 [details]
> Patch
> 
> Is it possible to add a test case for this?
I'm not really sure what's to test here.  The primary change/fix is just removing an incorrect `ASSERT` (specifically, it's possible for the decoded size of a resource to be smaller than its encoded size).

Furthermore, this logic (meaning `m_contentSize`) only really starts taking effect once there's 200MB (`maximumResourcesContentSize`) of data being stored, at which point the oldest content is evicted.  It exists just to make sure Web Inspector doesn't hold onto data forever, eventually crashing when we hit our 4GB limit.
Comment 5 EWS 2020-06-18 15:11:26 PDT
Committed r263231: <https://trac.webkit.org/changeset/263231>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 402055 [details].