Just trying to pick out the interesting parts of this run. So after 89706 major GC's, it starts to fail: (first column is line-number) 372508 [GC] 0 locatives (from 32) 372509 [GC] level 1 gcs(minor) 6 gcs(major) 74456 372510 [GC] stack 0x00007fffd2a86920 0xffffffffd2a868e0 0x00007fffd2b86920 372511 [GC] from 0x00007f08768bb010 0x00007f08a6c03e30 0x00007f08a6d00119 0x0000000030348e20 372512 [GC] to 0x00007f0845e68010 0x00007f0845e68010 0x00007f08762ad119 372513 [GC] 0 locatives (from 32) 372514 [debug] resizing heap dynamically from 1581608k to 2097151k ... 372515 [GC] (old) fromspace: start=0x00007f08768bb010, limit=0x00007f08a6d00119 372516 [GC] (old) tospace: start=0x00007f0845e68010, limit=0x00007f08762ad119 372517 [GC] resized heap to 2147483632 bytes 372518 [GC] (new) fromspace: start=0x00007f0805e67010, limit=0x00007f0845e67008 372519 [GC] (new) tospace: start=0x00007f0866d00010, limit=0x00007f08a6d00008 372520 [GC] level 1 gcs(minor) 2822 gcs(major) 74457 372521 [GC] stack 0x00007fffd2a86920 0xffffffffd2a86820 0x00007fffd2b86920 372522 [GC] from 0x00007f0866d00010 0x00007f089706b420 0x00007f08a6d00008 0x000000003036b410 372523 [GC] to 0x00007f0805e67010 0x00007f0805e67010 0x00007f0845e67008 372524 [GC] 0 locatives (from 32) 372525 [GC] level 1 gcs(minor) 2808 gcs(major) 74458 372526 [GC] stack 0x00007fffd2a86920 0xffffffffd2a86820 0x00007fffd2b86920 372527 [GC] from 0x00007f0805e67010 0x00007f08361ddb00 0x00007f0845e67008 0x0000000030376af0 372528 [GC] to 0x00007f0866d00010 0x00007f0866d00010 0x00007f08a6d00008 372529 [GC] 0 locatives (from 32) 372530 [GC] level 1 gcs(minor) 2765 gcs(major) 74459 372531 [GC] stack 0x00007fffd2a86920 0xffffffffd2a86980 0x00007fffd2b86920 372532 [GC] from 0x00007f0866d00010 0x00007f089700ecb8 0x00007f08a6d00008 0x000000003030eca8 372533 [GC] to 0x00007f0805e67010 0x00007f0805e67010 0x00007f0845e67008 372534 [GC] 0 locatives (from 32) 448744 [GC] 0 locatives (from 32) 448745 [GC] level 1 gcs(minor) 21 gcs(major) 89702 448746 [GC] stack 0x00007fffd2a86920 0xffffffffd2a867f0 0x00007fffd2b86920 448747 [GC] from 0x00007f0805e67010 0x00007f0845d55f00 0x00007f0845e67008 0x000000003feeeef0 448748 [GC] to 0x00007f0866d00010 0x00007f0866d00010 0x00007f08a6d00008 448749 [GC] 0 locatives (from 32) 448750 [GC] level 1 gcs(minor) 9 gcs(major) 89703 448751 [GC] stack 0x00007fffd2a86920 0xffffffffd2a867e0 0x00007fffd2b86920 448752 [GC] from 0x00007f0866d00010 0x00007f08a6c00928 0x00007f08a6d00008 0x000000003ff00918 448753 [GC] to 0x00007f0805e67010 0x00007f0805e67010 0x00007f0845e67008 448754 [GC] 0 locatives (from 32) 448755 [GC] level 1 gcs(minor) 17 gcs(major) 89704 448756 [GC] stack 0x00007fffd2a86920 0xffffffffd2a867b0 0x00007fffd2b86920 448757 [GC] from 0x00007f0805e67010 0x00007f0845d59990 0x00007f0845e67008 0x000000003fef2980 448758 [GC] to 0x00007f0866d00010 0x00007f0866d00010 0x00007f08a6d00008 448759 [GC] 0 locatives (from 32) 448760 [GC] level 1 gcs(minor) 7 gcs(major) 89705 448761 [GC] stack 0x00007fffd2a86920 0xffffffffd2a86800 0x00007fffd2b86920 448762 [GC] from 0x00007f0866d00010 0x00007f08a6c1ec28 0x00007f08a6d00008 0x000000003ff1ec18 448763 [GC] to 0x00007f0805e67010 0x00007f0805e67010 0x00007f0845e67008 448764 [GC] 0 locatives (from 32) 448765 [GC] level 1 gcs(minor) 0 gcs(major) 89706 448766 [GC] stack 0x00007fffd2a86920 0xffffffffd2a868c0 0x00007fffd2b86920 448767 [GC] from 0x00007f0805e67010 0x00007f0845d70cd8 0x00007f0845e67008 0x000000003ff09cc8 448768 [GC] to 0x00007f0866d00010 0x00007f0866d00010 0x00007f08a6d00008 448769 [GC] 0 locatives (from 32) 448770 [debug] resizing heap dynamically from 2097151k to 2097151k ... 448771 [GC] (old) fromspace: start=0x00007f0805e67010, limit=0x00007f0845e67008 448772 [GC] (old) tospace: start=0x00007f0866d00010, limit=0x00007f08a6d00008 448773 [GC] resized heap to 2147483632 bytes 448774 [GC] (new) fromspace: start=0x00007f07c5e66010, limit=0x00007f0805e66008 448775 [GC] (new) tospace: start=0x00007f0866d00010, limit=0x00007f08a6d00008 448776 [debug] resizing heap dynamically from 2097151k to 2097151k ... 448777 [GC] (old) fromspace: start=0x00007f07c5e66010, limit=0x00007f0805e66008 448778 [GC] (old) tospace: start=0x00007f0866d00010, limit=0x00007f08a6d00008 448779 [GC] resized heap to 2147483632 bytes 448780 [GC] (new) fromspace: start=0x00007f0826cff010, limit=0x00007f0866cff008 448781 [GC] (new) tospace: start=0x00007f0866d00010, limit=0x00007f08a6d00008 448782 [debug] resizing heap dynamically from 2097151k to 2097151k ... 448783 [GC] (old) fromspace: start=0x00007f0826cff010, limit=0x00007f0866cff008 448784 [GC] (old) tospace: start=0x00007f0866d00010, limit=0x00007f08a6d00008 448785 [GC] resized heap to 2147483632 bytes