Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x418 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff8102d9db stack pointer = 0x0:0xfffffe00246c7680 frame pointer = 0x0:0xfffffe00246c7710 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 1144 (syz-executor.0) trap number = 12 panic: page fault cpuid = 1 time = 1569502964 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00246c72e0 vpanic() at vpanic+0x1e0/frame 0xfffffe00246c7340 panic() at panic+0x43/frame 0xfffffe00246c73a0 trap_fatal() at trap_fatal+0x4de/frame 0xfffffe00246c7420 trap_pfault() at trap_pfault+0x9f/frame 0xfffffe00246c7490 trap() at trap+0x44b/frame 0xfffffe00246c75b0 calltrap() at calltrap+0x8/frame 0xfffffe00246c75b0 --- trap 0xc, rip = 0xffffffff8102d9db, rsp = 0xfffffe00246c7680, rbp = 0xfffffe00246c7710 --- __mtx_lock_sleep() at __mtx_lock_sleep+0x17b/frame 0xfffffe00246c7710 __mtx_lock_flags() at __mtx_lock_flags+0x157/frame 0xfffffe00246c7770 sctp_setopt() at sctp_setopt+0x128f/frame 0xfffffe00246c7800 sctp_ctloutput() at sctp_ctloutput+0x214/frame 0xfffffe00246c7840 sosetopt() at sosetopt+0x101/frame 0xfffffe00246c78c0 kern_setsockopt() at kern_setsockopt+0x14f/frame 0xfffffe00246c7940 sys_setsockopt() at sys_setsockopt+0x33/frame 0xfffffe00246c7970 ia32_syscall() at ia32_syscall+0x46a/frame 0xfffffe00246c7ab0 int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0x814121c KDB: enter: panic [ thread pid 1144 tid 100829 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why