uvm_fault(0xffffffff839f2648, 0xffff800029892038, 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
* 91050  30545      0           0  0x4000000    0K syz-executor
ffs2_balloc(fffffd8072dec9b8,840002ffff,1,fffffd80097fd068,3,ffff80003c3fc3e8) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80003c3fc470) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd806374d8b0,ffff80003c3fc628,17,fffffd80097fd068) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
vn_write(fffffd806c677720,ffff80003c3fc628,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:414
dofilewritev(ffff8000fffe8550,6,ffff80003c3fc628,0,ffff80003c3fc6e0) at dofilewritev+0x2bd sys/kern/sys_generic.c:384
sys_write(ffff8000fffe8550,ffff80003c3fc790,ffff80003c3fc6e0) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff80003c3fc790) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3fc790) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1997dc4e1d0, count: 7
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