The nightly test:

gc/gctests/JumbleGC002

fails with a segmentation error when run with G1.

Two instances of this failure have been seen:

Analysis Page (1):
http://sqeweb.sfbay/net/sqenfs-2/export2/results/vm/gtee/JDK7/NIGHTLY/VM/2011-01-12/G1_GC_Baseline/index.html

Results Dir (1):
/net/sqenfs-2.sfbay/export2/results/vm/gtee/JDK7/NIGHTLY/VM/2011-01-12/G1_GC_Baseline-tiered/vm/solaris-i586/server/mixed/solaris-i586_vm_server_mixed_vm.gc.testlist

Machine (1):
vm-x6250-01a

Flags (1):
-server -Xmixed -XX:-PrintVMOptions -XX:+UseG1GC -XX:+TieredCompilation -XX:+StartAttachListener

Analysis Page (2):
http://sqeweb.sfbay/net/sqenfs-2/export2/results/vm/gtee/JDK7/NIGHTLY/VM/2011-01-13/G1_GC_Baseline/vm/solaris-i586/server/mixed/solaris-i586_vm_server_mixed_vm.gc.testlist/analysis.html

Results Dir (2):
/net/sqenfs-2.sfbay/export2/results/vm/gtee/JDK7/NIGHTLY/VM/2011-01-13/G1_GC_Baseline/vm/solaris-i586/server/mixed/solaris-i586_vm_server_mixed_vm.gc.testlist

Machine (2):
tatooinevm

Flags (2):
-server -Xmixed -XX:-PrintVMOptions -XX:+UseG1GC -XX:+StartAttachListener -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops