Date: Wed, 11 Jun 2014 14:25:57 -0400 From: grarpamp <grarpamp@gmail.com> To: freebsd-fs@freebsd.org Cc: zfs-devel@freebsd.org Subject: Re: ZFS import panic (kgdb backtrace attached) Message-ID: <CAD2Ti285x8hHFN4Rc6TA2BbiiWHzsHQ4NR_Jok3P8FXaxEwjBg@mail.gmail.com> In-Reply-To: <201406111252.02544.jhb@freebsd.org> References: <CAD2Ti29gKmED34S5z6NEUnaGOsx8m2uPEJiPWPZLcebJ6PD-mw@mail.gmail.com> <201406101158.08599.jhb@freebsd.org> <CAD2Ti29vpDa2rwE5_opwV9BFmmEx62UzdgHt-tX8RoWxy2wjMw@mail.gmail.com> <201406111252.02544.jhb@freebsd.org>
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On Wed, Jun 11, 2014 at 12:52 PM, John Baldwin <jhb@freebsd.org> wrote:
> On Tuesday, June 10, 2014 2:00:37 pm grarpamp wrote:
>> On Tue, Jun 10, 2014 at 11:58 AM, John Baldwin <jhb@freebsd.org> wrote:
>> > Can you do 'frame 7' and 'p *rt' and 'p *rt->rt_ops'?
>>
>> (kgdb) frame 7
>> #7 0xc13cb9f4 in range_tree_vacate (rt=0xc83dc000, func=0, arg=0x0)
>> at
> /.../src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/range_tree.c:364
>> 364 rt->rt_ops->rtop_vacate(rt, rt->rt_arg);
>> (kgdb) p *rt
>> $1 = {rt_root = {avl_root = 0xd6900780, avl_compar = 0xc13cb890
>> <range_tree_seg_compare>, avl_offset = 0, avl_numnodes = 1, avl_size =
>> 48},
>> rt_space = 4294967296, rt_ops = 0x1, rt_arg = 0x0, rt_histogram = {0
>> <repeats 64 times>}, rt_lock = 0xc8309000}
>> (kgdb) p *rt->rt_ops
>> Cannot access memory at address 0x1
>
> Humm, that is the source of the actual fault. I've no idea why that would
> be set to 1 however. Unfortunately you need someone more familiar with ZFS to
> look at this further.
Ok, copying thread to zfs-devel, not sure if it's the right place but
probably has open-zfs.org people. I'll see about posting status
on RELENG_10 x64 when I can move it there.
http://docs.freebsd.org/cgi/mid.cgi?CAD2Ti29gKmED34S5z6NEUnaGOsx8m2uPEJiPWPZLcebJ6PD-mw
http://docs.freebsd.org/cgi/mid.cgi?CAD2Ti2_DZqDbOnbwap-YrOEjavyRZ4H7JZ1r8mkk4_OPrYQEUg
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