A large number of parallel class loading tests (as well as a few other tests)
failed in the hg/hotspot-g1-gc repo testing with the assert:

         _concurrent_iteration_safe_limit <= top():
         "_concurrent_iteration_safe_limit update missed"

See, for instance:

http://sqeweb.sfbay/nfs/tools/gtee/results/JDK7/NIGHTLY/VM/2008-06-20/GC_Baseline-Xconc/vm/linux-i586/server/mixed/vm-linux-i586_server_mixed_vm.parallel_class_loading.testlist2008-06-20-21-18-50/ResultDir/anonymous-simple_copy_3/anonymous-simple.log

[2008-06-21T06: customer : customer .77] # after -XX: or in .hotspotrc:  SuppressErrorAt=/space.inline.hpp:65
[2008-06-21T06: customer : customer .77] #
[2008-06-21T06: customer : customer .77] # A fatal error has been detected by the Java Runtime Environment:
[2008-06-21T06: customer : customer .77] #
[2008-06-21T06: customer : customer .77] #  Internal Error (/tmp/jprt-jprtadm/temp/P1/B/154254.ysr/source/src/share/vm/memory/space.inline.hpp:65), pid=27386, tid=2888154032
[2008-06-21T06: customer : customer .77] #  Error: assert(_concurrent_iteration_safe_limit <= top(),"_concurrent_iteration_safe_limit update missed")
[2008-06-21T06: customer : customer .77] #
[2008-06-21T06: customer : customer .77] # Java VM: Java HotSpot(TM) Server VM (13.0-b02-2008-06-17-154254.ysr.hg_g1_gc_baseline-fastdebug mixed mode linux-x86 )
[2008-06-21T06: customer : customer .77] # An error report file with more information is saved as:
[2008-06-21T06: customer : customer .77] # /export/local/6175.JDK7.NIGHTLY.VM+linux-i586_server_mixed_vm.parallel_class_loading.testlist/results/ResultDir/anonymous-simple_copy_3/hs_err_pid27386.log
[2008-06-21T06: customer : customer .77] #
[2008-06-21T06: customer : customer .77] # If you would like to submit a bug report, please visit:
[2008-06-21T06: customer : customer .77] #   http://java.sun.com/webapps/bugreport/crash.jsp
[2008-06-21T06: customer : customer .77] #
Posted Date : 2008-06-23 20:49:35.0

N/A

The field ContiguousSpace::_concurrent_iteration_safe_limit had not
been correctly initialized.

Part of the problem was a merge-o into the G1 workspace from gc_baseline,
and part of the problem was a missing c'tor initializer (the latter will
become part of gc_baseline once G1 integrates).
Posted Date : 2008-06-23 20:49:35.0

http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/60fb9c4db4e6
Posted Date : 2008-08-28 05:35:39.0