[Webkit-unassigned] [Bug 207061] New: [ macOS wk1 ] storage/indexeddb/cursor-value-private.html is flaky crashing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207061

            Bug ID: 207061
           Summary: [ macOS wk1 ]
                    storage/indexeddb/cursor-value-private.html is flaky
                    crashing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jacob_uphoff at apple.com

Created attachment 389385

  --> https://bugs.webkit.org/attachment.cgi?id=389385&action=review

Crash log

storage/indexeddb/cursor-value-private.html 

This has only crashed twice in all visible history, however both crashes were on Catalina wk1 

I was not able to reproduce on iterations x5000

History:
https://results.webkit.org/?suite=layout-tests&test=storage%2Findexeddb%2Fcursor-value-private.html&platform=ios&platform=mac

Crash:

Process:               DumpRenderTree [49352]
Path:                  /Volumes/VOLUME/*/DumpRenderTree
Identifier:            DumpRenderTree
Version:               0
Code Type:             X86-64 (Native)
Parent Process:        Python [46345]
Responsible:           bash [402]
User ID:               501

Date/Time:             2020-01-31 11:03:11.035 -0800
OS Version:            Mac OS X 10.15.1 (19B88)
Report Version:        12
Bridge OS Version:     4.1 (17P1081)
Anonymous UUID:        9FEF4D39-50DC-A27E-425C-CBB98DC5BCE6


Time Awake Since Boot: 1400000 seconds

System Integrity Protection: enabled

Crashed Thread:        30  IndexedDB

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000011850
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Segmentation fault: 11
Termination Reason:    Namespace SIGNAL, Code 0xb
Terminating Process:   exc handler [49352]

VM Regions Near 0x11850:
--> 
    __TEXT                 0000000108244000-00000001082a1000 [  372K] r-x/r-x SM=COW  /Volumes/VOLUME/*

Application Specific Information:
CRASHING TEST: storage/indexeddb/cursor-value-private.html

Thread 0:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib              0x00007fff66bc7166 mach_msg_trap + 10
1   libsystem_kernel.dylib              0x00007fff66bc76cc mach_msg + 60
2   com.apple.CoreFoundation            0x00007fff2f5a536b __CFRunLoopServiceMachPort + 322
3   com.apple.CoreFoundation            0x00007fff2f5a4907 __CFRunLoopRun + 1695
4   com.apple.CoreFoundation            0x00007fff2f5a3fe3 CFRunLoopRunSpecific + 499
5   DumpRenderTree                      0x00000001082586f4 runTest(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 2675 (DumpRenderTree.mm:2118)
6   DumpRenderTree                      0x00000001082578ae dumpRenderTree(int, char const**) + 2813 (DumpRenderTree.mm:1228)
7   DumpRenderTree                      0x00000001082592e1 DumpRenderTreeMain(int, char const**) + 1438 (DumpRenderTree.mm:1462)
8   libdyld.dylib                       0x00007fff66a7e2e5 start + 1

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