Re: CVS commit: src/sys/netinet

[Ryota Ozaki <ozaki-r%netbsd.org@localhost>]

One possible fix has been committed.

Can you update the source code and try a new kernel?

Thanks,
  ozaki-r


On Tue, Dec 26, 2017 at 1:00 AM, Ryota Ozaki <ozaki-r%netbsd.org@localhost> wrote:
> On Mon, Dec 25, 2017 at 8:31 PM, Tom Ivar Helbekkmo
> <tih%hamartun.priv.no@localhost> wrote:
>> Martin Husemann <martin%duskware.de@localhost> writes:
>>
>>> The sparc64 hang happened with:
>>>
>>>      $NetBSD: ip_output.c,v 1.288 2017/12/22 11:22:37 ozaki-r Exp $
>>
>> My amd64 that experienced hangs has:
>>
>>         $NetBSD: ip_output.c,v 1.287 2017/12/15 04:03:46 ozaki-r Exp $
>>
>> ...and was last updated from CVS on December 19th, which made it much
>> more stable than a kernel from a few days previous to that (from the
>> 12th, I think).  After upgrading, I was trying to update a lot of
>> installed packages from pkgsrc, with pkgsrc, distfiles, and the binary
>> package repository NFS mounted, and a local pkgobj for building in.  I
>> gave up in the end, because of the hangs, but managed to build
>> everything after updating on the 19th.  Since then, I've only had the
>> one hard hang.
>
> My recent changes:
> - 12/6-7:   IFNET_LOCK changes #1
> - 12/14-15: IFNET_LOCK changes #2
> - 12/19:    Disable IFEF_MPSAFE by default
>
> So your experiences looks synchronized to the changes.
>
> Can you run the kernel with LOCKDEBUG and DEBUG enabled? And if once your
> system hangs again, can you enter the DDB and collect threads stuck on
> turnstile?
>
> Thanks,
>   ozaki-r