And it looks like the crash comes from Linux OOM killer. It is what dmesg 
says:


[32497.116849] d8 invoked oom-killer: gfp_mask=0x280da, order=0, 
oom_score_adj=0 
[32497.116853] d8 cpuset=/ mems_allowed=0 
[32497.116856] CPU: 1 PID: 4570 Comm: d8 Tainted: G W 3.12.3-1-ARCH #1 
[32497.116858] Hardware name: To Be Filled By O.E.M. To Be Filled By 
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012 
[32497.116860] 0000000000000000 ffff88007a2bdaa0 ffffffff814ee3db 
ffff880118ee56e0 
[32497.116863] ffff88007a2bdb30 ffffffff814ec36e ffff88007a2bdac0 
ffffffff81062d66 
[32497.116865] ffff88007a2bdb08 ffffffff810f3354 0000000000000141 
ffff88011f5f7b38 
[32497.116868] Call Trace: 
[32497.116876] [<ffffffff814ee3db>] dump_stack+0x54/0x8d 
[32497.116878] [<ffffffff814ec36e>] dump_header+0x7f/0x200 
[32497.116883] [<ffffffff81062d66>] ? put_online_cpus+0x56/0x80 
[32497.116886] [<ffffffff810f3354>] ? rcu_oom_notify+0xe4/0x100 
[32497.116890] [<ffffffff81138dd6>] oom_kill_process+0x206/0x390 
[32497.116892] [<ffffffff81139557>] out_of_memory+0x437/0x480 
[32497.116896] [<ffffffff8113f3e9>] __alloc_pages_nodemask+0xad9/0xaf0 
[32497.116900] [<ffffffff8118065a>] alloc_pages_vma+0x9a/0x190 
[32497.116904] [<ffffffff81161c2b>] handle_mm_fault+0xedb/0x10f0 
[32497.116907] [<ffffffff814f8c59>] __do_page_fault+0x1e9/0x5f0 
[32497.116910] [<ffffffff814f5ae6>] ? retint_kernel+0x26/0x30 
[32497.116913] [<ffffffff814f8d62>] ? __do_page_fault+0x2f2/0x5f0 
[32497.116915] [<ffffffff814f906e>] do_page_fault+0xe/0x10 
[32497.116917] [<ffffffff814f5c88>] page_fault+0x28/0x30
[32497.137319] [24061] 1000 24061 84273 10894 70 0 0 python2
[32497.137321] [24065] 1000 24065 26933 7127 55 0 0 python2
[32497.137323] [24066] 1000 24066 26678 7062 54 0 0 python2
[32497.137325] [ 4570] 1000 4570 682632 481958 981 0 0 d8
[32497.137327] [ 4574] 1000 4574 682632 342254 708 0 0 d8
[32497.137329] Out of memory: Kill process 4570 (d8) score 514 or sacrifice 
child
[32497.137363] Killed process 4570 (d8) total-vm:2730528kB, 
anon-rss:1927664kB, file-rss:168kB
[33336.362402] d8 invoked oom-killer: gfp_mask=0x280da, order=0, 
oom_score_adj=0
[33336.362407] d8 cpuset=/ mems_allowed=0


So it looks like a memory leak in test or in V8 code itself.

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