STABLE "pfctl -s states" core dumps on Beaglebone Black (was -s rules)

[Arjan van der Velde]

Great! Thanks.

On Jun 30, 2015, at 2:10 PM, Guy Yur wrote:

> Hi,
> 
> On Tue, Jun 9, 2015 at 2:51 AM, Arjan van der Velde
> <vandervelde.ag at gmail.com> wrote:
>> Ok, I meant to say "pfctl -s states" here. Sorry for the confusion.
>> 
>> -- Arjan
>> 
>> 
>> On 06/08/2015 16:54, Arjan van der Velde wrote:
>>> 
>>> Hello,
>>> 
>>> I'm running stable on my BBB and I noticed that pfctl core dumps when
>>> doing "pfctl -s rules". I am on:
>>> 
>>> FreeBSD beaglebone 10.1-STABLE FreeBSD 10.1-STABLE #1 r283308
>>> 
>>> gdb doesn't seem to give me any useful information.
>>> 
>>> dmesg shows: pid 4192 (pfctl), uid 0: exited on signal 10 (core dumped)
>>> 
>>> and gdb:
>>> 
> (snip)
>>> 
>>> 
>>> Is this a known issue? How would I go about analyzing the cause of this?
> 
> 
> The cause for the core dump is unaligned access when trying to
> copy struct pf_addr in print_host().
> The compiler expects the struct to be aligned on 4 bytes
> (it contains a union of a u_int32_t array) but it is not
> since it is passed from inside pfsync_state struct which
> size is not divisible by 4.
> 
> On the BeagleBone Black strict alignment fault checking is enabled.
> 
> Discussion on the issue:
> https://lists.freebsd.org/pipermail/freebsd-arm/2014-January/007237.html
> 
> I filed bug report 185617 with changes that will break KBI:
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=185617
> 
> 
>>> 
>>> Thanks.
>>> 
>>> -- Arjan
> 
> Regards,
> -- Guy