uvm_fault(0xffffffff839f2648, 0xffff8000294f20c0, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ffs2_balloc+0xa0d:      movq    0(%rcx,%rax,8),%r14
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
  13325  61299      0           0  0x4000001    0  syz-executor
*453707  36441  60929        0x10        0x1    1K syz-executor
ffs2_balloc(fffffd806c673cd8,90582,50,fffffd80097fd340,1,ffff80002a2960e8) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a296170) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd8063f18488,ffff80002a296220,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff800037fbd780,fffffd8063f18488,fffffd80097fd340,ffff80002a2962f0,ffff80002a2962d0) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691
ktrsysret(ffff800037fbd780,5b,0,ffff80002a2963c0) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff800037fbd780,5b,0,ffff80002a2963c0) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209
syscall(ffff80002a296470) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a296470) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x790700e66f50, count: 8
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