uvm_fault(0xffffffff839367d8, 0xffff8000291720b8, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ffs2_balloc+0x9fe:      movq    0(%rcx,%rax,8),%r14
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*207745  76892      0         0x2        0x1    0K syz-executor
ffs2_balloc(fffffd806f15d7d0,8f560,58,fffffd807f7d2548,1,ffff80002a453e68) at ffs2_balloc+0x9fe sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a453ef0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd800ac1b9a0,ffff80002a453fa8,3,fffffd807f7d2548) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff80003c50dc58,fffffd800ac1b9a0,fffffd807f7d2548,ffff80002a454070,ffff80002a454050) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:691
ktrsyscall(ffff80003c50dc58,88,10,ffff80002a454200) at ktrsyscall+0x32b ktrwrite sys/kern/kern_ktrace.c:-1 [inline]
ktrsyscall(ffff80003c50dc58,88,10,ffff80002a454200) at ktrsyscall+0x32b sys/kern/kern_ktrace.c:183
syscall(ffff80002a454200) at syscall+0x2e6 mi_syscall sys/sys/syscall_mi.h:154 [inline]
syscall(ffff80002a454200) at syscall+0x2e6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70546a3bfdc0, count: 8
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