uvm_fault(0xffffffff83a2d578, 0xffff8000292b2768, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at      ffs2_balloc+0xa0a:      movq    0(%rcx,%rax,8),%r14
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*458665  97335      0           0  0x4000000    0  syz-executor
ffs2_balloc(fffff7006c43b800,3e4000,4000,fffff70007ffd7b8,2,ffff80003a4d5968) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80003a4d59f0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffff7006f3ab360,ffff80003a4d5ba8,7,fffff70007ffd7b8) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
vn_write(fffff7006ff0b960,ffff80003a4d5ba8,0) at vn_write+0x1c2 sys/kern/vfs_vnops.c:414
dofilewritev(ffff80003a8e4558,6,ffff80003a4d5ba8,0,ffff80003a4d5c50) at dofilewritev+0x2bd sys/kern/sys_generic.c:384
sys_write(ffff80003a8e4558,ffff80003a4d5d00,ffff80003a4d5c50) at sys_write+0xa2 sys/kern/sys_generic.c:300
syscall(ffff80003a4d5d00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003a4d5d00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfd2c708c680, count: 7
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