kernel panic at kern/src/mm.c:740, from core 2: assertion failed: !pte_is_mapped(pte) Stack Backtrace on Core 2: #01 [<0xffffffffc200a33c>] in backtrace at src/kdebug.c:220 #02 [<0xffffffffc2009b3d>] in _panic at src/init.c:268 #03 [<0xffffffffc200da83>] in map_page_at_addr at src/mm.c:740 #04 [<0xffffffffc200dad2>] in populate_anon_va at src/mm.c:773 #05 [<0xffffffffc200fb42>] in populate_va at src/mm.c:1336 #06 [<0xffffffffc20564a0>] in sys_populate_va at src/syscall.c:1692 #07 [<0xffffffffc2059569>] in syscall at src/syscall.c:2455 #08 [<0xffffffffc2059734>] in run_local_syscall at src/syscall.c:2490 #09 [<0xffffffffc2059c69>] in prep_syscalls at src/syscall.c:2510 #10 [<0xffffffffc20ab5fa>] in sysenter_callwrapper at arch/x86/trap.c:854