Panic - uma_zfree_arg - zone argument is NULL

[Hans Petter Selasky]

On 09/25/14 11:19, Gleb Smirnoff wrote:
> On Thu, Sep 18, 2014 at 02:03:44PM +0200, Hans Petter Selasky wrote:
> H> #7  0xffffffff80b07863 in uma_zfree_arg (zone=0x0, item=0xfffff800114ee000,
> H>      udata=0xffffffff81484760)
>
> udata here is uma_slab_t. Can you look at it?
>
> btw, is that reproducible on stable/10 or head?
>

Yes, it is reproducible. I have not tried stable/10 or head yet.

(kgdb) print *(uma_slab_t)udata
$3 = {
   us_keg = 0xfffff8085696d680,
   us_type = {
     _us_link = {
       le_next = 0xfffff80856970a80,
       le_prev = 0x3
     },
     _us_size = 18446735313429006976
   },
   us_hlink = {
     sle_next = 0x0
   },
   us_data = 0xffffffff81484778 "",
   us_free = {
     __bits = {0, 0, -2125969520, 0}
   },
   us_freecount = 0,
   us_flags = 0 '\0',
   us_pad = 0 '\0'
}

--HPS