Unreal Engine Issues

UE-46179

Launch on to HTML5 fails in browser with Expression (mp_Table) failed in LowLevelMemoryMap.h

Launch on to HTML5 fails in browser with Expression (mp_Table) failed in LowLevelMemoryMap.h

Description

I was able to repro this on both FF and Chrome. I have the latest FF 64-bit and was running into this after I deleted my intermediates, ran GenerateProjectFiles.bat, and built UE4 in VS.

Steps to Reproduce

Repro:

  1. Create a Code project using the first person template.
  2. Click the dropdown arrow next to the Launch button in the Toolbar and select Firefox.

Result:
Project fails to open on web browser while launch on is running.

Callstack
Expression 'mp_Table' failed in D:\Builds\Fortnite-Staging\Engine\Source\Runtime\Core\Private\HAL/LowLevelMemoryMap.h:328!
    at __ZNK10VirtualMapI10PointerKeyN22FLLMThreadStateManager18FLowLevelAllocInfoEE12GetItemIndexERKS0_ (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN10VirtualMapI10PointerKeyN22FLLMThreadStateManager18FLowLevelAllocInfoEE3AddERKS0_RKS2_ (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN22FLLMThreadStateManager15TrackAllocationEPKvy (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN19FLowLevelMemTracker15OnLowLevelAllocE11ELLMTrackerPKvy (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN7FMemory7ReallocEPvmj (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN6TArrayIPv17FDefaultAllocatorE10ResizeGrowEi (21e84ab0-e6db-4860-8c43-125045874e7f:47:1)
    at __ZN9FHTML5TLS12AllocTlsSlotEv (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN22FLLMThreadStateManagerC2Ev (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN19FLowLevelMemTracker16GetThreadManagerE11ELLMTracker (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN19FLowLevelMemTracker15OnLowLevelAllocE11ELLMTrackerPKvy (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN7FMemory6MallocEmj (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN20FHTML5PlatformMemory17BinnedAllocFromOSEm (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN27FGenericPlatformMallocCrashC2EP7FMalloc (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN27FGenericPlatformMallocCrash3GetEP7FMalloc (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN7FMemory13GCreateMallocEv (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN7FMemory14MallocExternalEmj (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __ZN7FMemory6MallocEmj (21e84ab0-e6db-4860-8c43-125045874e7f:25:1)
    at __Znwj (21e84ab0-e6db-4860-8c43-125045874e7f:47:1)
    at __ZN5FName18GetCriticalSectionEv (21e84ab0-e6db-4860-8c43-125045874e7f:44:1)
    at __ZN5FName10StaticInitEv (21e84ab0-e6db-4860-8c43-125045874e7f:44:1)
    at __ZN5FName12InitInternalIcEEvPKT_i9EFindNameitt (21e84ab0-e6db-4860-8c43-125045874e7f:44:1)
    at __ZN5FName22InitInternal_HashSplitIcEEvPKT_i9EFindNamebi (21e84ab0-e6db-4860-8c43-125045874e7f:44:1)
    at __ZN5FName4InitEPKwi9EFindNamebi (21e84ab0-e6db-4860-8c43-125045874e7f:44:1)
    at __ZN5FNameC2EPKw9EFindName (21e84ab0-e6db-4860-8c43-125045874e7f:44:1)
    at ___cxx_global_var_init_47 (21e84ab0-e6db-4860-8c43-125045874e7f:47:1)
    at __GLOBAL__sub_I_Module_Launch_cpp (21e84ab0-e6db-4860-8c43-125045874e7f:47:1)
    at asm.__GLOBAL__sub_I_Module_Launch_cpp (e2973831-89f5-43f7-bd44-bfc338d12876:3:13940)
    at func (e2973831-89f5-43f7-bd44-bfc338d12876:1:33115)
    at callRuntimeCallbacks (e2973831-89f5-43f7-bd44-bfc338d12876:1:22687)
    at ensureInitRuntime (e2973831-89f5-43f7-bd44-bfc338d12876:1:23206)
    at doRun (e2973831-89f5-43f7-bd44-bfc338d12876:3:237200)
    at run (e2973831-89f5-43f7-bd44-bfc338d12876:3:237640)
    at runCaller (e2973831-89f5-43f7-bd44-bfc338d12876:3:235822)
    at removeRunDependency (e2973831-89f5-43f7-bd44-bfc338d12876:1:28225)
    at applyMemoryInitializer (e2973831-89f5-43f7-bd44-bfc338d12876:3:234749)
    at xhr_onload (e2973831-89f5-43f7-bd44-bfc338d12876:1:3288)

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Fixed
ComponentUE - Platform - Mobile
Affects Versions4.17
Target Fix4.17
Fix Commit3498431
Main Commit3503486
CreatedJun 16, 2017
ResolvedJun 19, 2017
UpdatedMay 29, 2018
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