Assertion failure in traceForwardObject in MarkCompactSpace

Description

There's an assertion failure when running jython on x64 BaseBaseMarkCompact:

Complete log at https://jikesrvm.anu.edu.au/job/x64-sanity-tier2-main-repo/1/testReport/(root)/jython/jython__BaseBaseMarkCompact___default____Tests__dacapo_/

The failing line is:

which is quite concerning because either the null check is wrong or something else is going awry. There aren't any warnings about lack of free memory before the failure occurs.

Environment

x64

Status

Assignee

Unassigned

Reporter

Erik Brangs

Labels

None

Components

Affects versions

Priority

Medium
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