Autoloading module: intpm.ko
Starting background file system checks in 60 seconds.

Sun Mar 17 05:35

FreeBSD/amd64 (ci-freebsd-main-6.c.syzkaller.internal) (ttyu0)



Warning: Permanently added '10.128.0.162' (ECDSA) to the list of known hosts.
executing program
login: panic: pmap_demote_pde: page table page for a wired mapping is missing
cpuid = 1
time = 1552800975
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe001fa2c6b0
vpanic() at vpanic+0x1e0/frame 0xfffffe001fa2c710
panic() at panic+0x43/frame 0xfffffe001fa2c770
pmap_demote_pde_locked() at pmap_demote_pde_locked+0x1288/frame 0xfffffe001fa2c840
pmap_remove() at pmap_remove+0x5c8/frame 0xfffffe001fa2c8d0
vm_map_protect() at vm_map_protect+0x666/frame 0xfffffe001fa2c940
sys_mprotect() at sys_mprotect+0xcc/frame 0xfffffe001fa2c980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe001fa2cab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe001fa2cab0
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x4574fa, rsp = 0x7fffdffdcf88, rbp = 0x6b5a00 ---
KDB: enter: panic
[ thread pid 759 tid 100102 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why