Bug 83096 - Linux crashes during boot
Summary: Linux crashes during boot
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Gavin Barraclough
URL: http://www.ubercomp.com/jslm32/src/
Keywords:
Depends on:
Blocks:
 
Reported: 2012-04-03 16:57 PDT by Gavin Barraclough
Modified: 2012-04-03 17:30 PDT (History)
0 users

See Also:


Attachments
Fix (1.60 KB, patch)
2012-04-03 16:59 PDT, Gavin Barraclough
fpizlo: review+
Details | Formatted Diff | Diff

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Description Gavin Barraclough 2012-04-03 16:57:15 PDT
The bug here is that we add empty JSValues to the sparse map, and then set them - but a GC may occur before doing so (due to a call to reportExtraMemory cost).
We may want to consider making it safe to mark empty JSValues, but the simple & contained fix to this specific bug is to just initialize these values to something other than JSValue().
Comment 1 Gavin Barraclough 2012-04-03 16:59:10 PDT
Created attachment 135457 [details]
Fix
Comment 2 Gavin Barraclough 2012-04-03 17:30:03 PDT
Fixed in r113112