last executing test programs:

kernel console output (not intermixed with test programs):

failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/managers/i386/latest.tmp/key" "root@10.128.1.152" "pwd"]: exit status 255
ssh: connect to host 10.128.1.152 port 22: Operation timed out
Pseudo-terminal will not be allocated because stdin is not a terminal.
Warning: Permanently added '[us-central1-ssh-serialport.googleapis.com]:9600' (RSA) to the list of known hosts.
SeaBIOS (version 1.8.2-google)
Total RAM Size = 0x0000000080000000 = 2048 MiB
CPUs found: 2     Max CPUs supported: 2
SeaBIOS (version 1.8.2-google)
Machine UUID 944126e2-3b0d-6024-be38-f329130ac6bc
found virtio-scsi at 0:3
virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
virtio-scsi blksize=512 sectors=6291456 = 3072 MiB
drive 0x000f27c0: PCHS=0/0/0 translation=lba LCHS=780/128/63 s=6291456
Sending Seabios boot VM event.
Booting from Hard Disk 0...
Loading /boot/loader.conf.local
-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/Loading kernel...
-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|//boot/kernel/kernel text=0x17ecd8 -\|/-\|/-\|/-text=0x1edfe97 \|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/text=0x90db54 -\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/data=0x71c0+0xe40 -data=0x899fb0+0x566050 \|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\syms=[0x8+0x3a7058|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/+0x8+0x1dc9a4-\|/-\|/-\|/-\]
Loading configured modules...
|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\/boot/kernel/cc_dctcp.ko |size 0x8988 at 0x4184000
/-\|/-\|/-\|/-\/boot/kernel/sem.ko |size 0x10c08 at 0x418d000
/-\|/-\|/-\|/-\/boot/kernel/cc_vegas.ko |size 0x62d8 at 0x419e000
/-\|/-\|/-\|/-\|/-\|//boot/kernel/ipsec.ko -\|/-\size 0x7fd88 at 0x41a5000
|/-\|/-\|/-\|/-/boot/kernel/cc_chd.ko \size 0x8e98 at 0x4225000
|/-\|/-\|/-\|/-/boot/kernel/filemon.ko \size 0xd920 at 0x422e000
|/-\|/-\|/-\|/-/boot/kernel/cc_cdg.ko \size 0xdb48 at 0x423c000
|/-\|/-\|/-\|/-/boot/kernel/mqueuefs.ko \size 0x26ca8 at 0x424a000
|/-\|/-\|/-\|/-\|/-/boot/kernel/tcp_rack.ko \|/-\|/-\|/-size 0x154110 at 0x4271000
\|/-\|/-\|/-\|//boot/kernel/cc_hd.ko size 0x6010 at 0x43c6000
-\|/-\|/-\|/-\|/-\|/boot/kernel/cc_cubic.ko size 0x9908 at 0x43cd000
/-\|/-\|/-\|/-\|/-\/boot/kernel/sctp.ko |/-\|/-\|/-\|/-\|/-\|/-\size 0x2e4bf8 at 0x43d7000
|/-\|/-\|/-\|/-\|/-\|/boot/kernel/cryptodev.ko /size 0x15910 at 0x46bc000
-\|/-\|/-\|/-\|/boot/kernel/tcp_bbr.ko /-\|/-\|size 0xe2200 at 0x46d2000
/-\|/-\|/-\|/-\|/-\|//boot/kernel/cc_htcp.ko -size 0x7a80 at 0x47b5000
\|/-\|/-\|/-\|//boot/kernel/pf.ko -\|/-\|/-\|/-\|/-\size 0x2263c8 at 0x47bd000
|/-\|/-\|//boot/entropy -size=0x1000
\|/-GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
---<<BOOT>>---
Copyright (c) 1992-2024 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 15.0-CURRENT #0 n270772-2d08f6b577e9: Fri Jun 14 19:42:35 UTC 2024
    root@freebsd:/syzkaller/managers/i386/kernel/obj/syzkaller/managers/i386/kernel/amd64.amd64/sys/SYZKALLER amd64
FreeBSD clang version 18.1.6 (https://github.com/llvm/llvm-project.git llvmorg-18.1.6-0-g1118c2e05e67)
WARNING: WITNESS option enabled, expect reduced performance.
WARNING: DIAGNOSTIC option enabled, expect reduced performance.
kernel trap 12 with interrupts disabled
Kernel page fault with the following non-sleepable locks held:
exclusive sleep mutex vm page free queue (vm page free queue) r = 0 (0xffffffff83aa50c0) locked @ /syzkaller/managers/i386/kernel/sys/vm/vm_page.c:842
stack backtrace:
#0 0xffffffff815fdae6 at ??+0
#1 0xffffffff815fff34 at ??+0
#2 0xffffffff8208ef07 at ??+0
#3 0xffffffff8208d6c8 at ??+0
#4 0xffffffff82036298 at ??+0
#5 0xffffffff81d94c05 at ??+0
#6 0xffffffff81dbc811 at ??+0
#7 0xffffffff81d964d5 at ??+0
#8 0xffffffff81d665bd at ??+0
#9 0xffffffff813ce079 at ??+0
#10 0xffffffff8037f03d at ??+0


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0xfffff7800067ddca
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81578703
stack pointer	        = 0x28:0xffffffff84bfdce0
frame pointer	        = 0x28:0xffffffff84bfdce0
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= resume, IOPL = 0
current process		= 0 ()
rdi: fffffe00033eee50 rsi: 0000000000000007 rdx: 000000000067ddca
rcx: fffffe00033eee57  r8: 0000000000000000  r9: 0000000000000000
rax: fffff78000000000 rbx: fffffe00033eee30 rbp: ffffffff84bfdce0
r10: 0000000000000000 r11: 0000000000000000 r12: 000000007fd5f000
r13: ffffffff83aa8880 r14: 0000000000000000 r15: 0000000000000005
trap number		= 12
panic: page fault
cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xffffffff84bfd410
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xffffffff84bfd570
vpanic() at vpanic+0x280/frame 0xffffffff84bfd730
panic() at panic+0xb5/frame 0xffffffff84bfd7f0
trap_fatal() at trap_fatal+0x7f2/frame 0xffffffff84bfd910
trap_pfault() at trap_pfault+0x179/frame 0xffffffff84bfda30
trap() at trap+0x648/frame 0xffffffff84bfdc10
calltrap() at calltrap+0x8/frame 0xffffffff84bfdc10
--- trap 0xc, rip = 0xffffffff81578703, rsp = 0xffffffff84bfdce0, rbp = 0xffffffff84bfdce0 ---
__asan_store8_noabort() at __asan_store8_noabort+0x83/frame 0xffffffff84bfdce0
vm_page_init_page() at vm_page_init_page+0x25/frame 0xffffffff84bfdd10
vm_phys_enqueue_contig() at vm_phys_enqueue_contig+0x6f1/frame 0xffffffff84bfdd90
vm_page_startup() at vm_page_startup+0x1805/frame 0xffffffff84bfdeb0
vm_mem_init() at vm_mem_init+0x2d/frame 0xffffffff84bfded0
mi_startup() at mi_startup+0x2d9/frame 0xffffffff84bfdff0
KDB: enter: panic
[ thread pid 0 tid 0 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x23cd5c7(%rip)
db> serialport: Connected to syzkaller.us-central1-b.ci-freebsd-i386-test-1 port 1 (session ID: a9a3af7a83af042a7821fb150d19aee63375887a5c7696961af210f76ea34c86, active connections: 1).