On Thu, Jul 30, 2015 at 4:43 PM, Patrick O'Callaghan
<pocallaghan(a)gmail.com> wrote:
On Thu, 2015-07-30 at 13:21 -0500, Ranjan Maitra wrote:
> On Thu, 30 Jul 2015 18:54:02 +0100 "Patrick O'Callaghan" <
> pocallaghan(a)gmail.com> wrote:
>
> > This is happening every few minutes since I updated today:
> >
> > Jul 30 18:26:21 Bree kernel: BUG: unable to handle kernel NULL
> > pointer dereference at 0000000000000288
> > Jul 30 18:26:21 Bree kernel: IP: [<ffffffff8120f034>]
> > __kmalloc_node_track_caller+0x1c4/0x320
> >
> > Going to try booting the previous kernel.
>
> This is likely a bug. Please file on BZ so that developers may know
> about it.
It's wierd. I rebooted with 4.0.8 (which had previously been working
with no issues) and got a different bug:
Jul 30 18:54:49 Bree kernel: kernel BUG at mm/slub.c:3413!
Jul 30 18:54:50 Bree kernel: invalid opcode: 0000 [#1] SMP
I rebooted again with 4.0.6 and so far it seems to be working (several
hours without crashing).
I'll try updating again tomorrow before I report anything.
mm/slub.c and kmmalloc are memory related functions, so if you regress
to a previously working kernel I'd say memory related. Maybe try live
media and see if it happens. And start a memtest over the weekend and
see if that triggers something.
--
Chris Murphy