I can crash 9vx (latest from rminnich's repository) with regularity just by trying to compile Go's 'cmath' package. hosted on OSX, 7 cpus recognized by 9vx:
segment 0x3f000000 0x40000000 segment 0x1000 0x5a000 segment 0x5a000 0x6b000 segment 0x6b000 0x263000 1580 8g: unhandled fault va=162 [11000162] eip=4eb92 cpu0: registers for 8g 1580 FLAGS=0 TRAP=0 ECODE=0 PC=4EB92 USP=3FFFF5A0 AX 00000102 BX 00000001 CX 00000102 DX 3FFFF478 SI 000614AC DI 00236409 BP 00000000
