Re: Asterisk deadlocks since Kernel 4.1

From	Hannes Frederic Sowa <hannes@stressinduktion.org>
Newsgroups	linux.kernel
Subject	Re: Asterisk deadlocks since Kernel 4.1
Date	2015-12-02 19:30 +0100
Message-ID	<qBkka-2qa-3@gated-at.bofh.it> (permalink)
References	(15 earlier) <qwDx9-5ll-55@gated-at.bofh.it> <qxYJc-1N0-5@gated-at.bofh.it> <qxYSS-1QC-19@gated-at.bofh.it> <qBccV-5qs-11@gated-at.bofh.it> <qBjRa-20s-61@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hello,

On Wed, Dec 2, 2015, at 18:15, Philipp Hahn wrote:
> Hi,
> 
> Am 02.12.2015 um 10:45 schrieb Stefan Priebe - Profihost AG:
> > here are the results.
> > 
> > It works with 4.1.
> > It works with 4.2.
> > It does not work with 4.1.13.
> 
> the patches were first commitet in v4.3-rc3 and appear as backports only
> since v4.2.3 and v4.1.10
> 
> > git bisect tells me it stopped working after those two commits were applied:
> > 
> > commit d48623677191e0f035d7afd344f92cf880b01f8e
> > Author: Herbert Xu <herbert@gondor.apana.org.au>
> > Date:   Tue Sep 22 11:38:56 2015 +0800
> > 
> >     netlink: Replace rhash_portid with bound
> > 
> > commit 4e27762417669cb459971635be550eb7b5598286
> > Author: Herbert Xu <herbert@gondor.apana.org.au>
> > Date:   Fri Sep 18 19:16:50 2015 +0800
> > 
> >     netlink: Fix autobind race condition that leads to zero port ID
> 
> I identified the same two patches for our prpblem; see mail from
> 2015-11-17 16:53 with subject "Strange PF_NETLINK NETLINK_ROUTE stall:
> netlink: Fix autobind race condition that leads to zero port ID"
> 
> <http://marc.info/?l=linux-kernel&m=144863837825887&w=2>

Thanks, I missed this mail. I have a further look. I couldn't reproduce
it myself but will check if your test program does it.

Thanks a lot,
Hannes
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Re: Asterisk deadlocks since Kernel 4.1 Stefan Priebe - Profihost AG <s.priebe@profihost.ag> - 2015-12-02 10:50 +0100
  Re: Asterisk deadlocks since Kernel 4.1 Hannes Frederic Sowa <hannes@stressinduktion.org> - 2015-12-02 12:50 +0100
    Re: Asterisk deadlocks since Kernel 4.1 Philipp Hahn <pmhahn@pmhahn.de> - 2015-12-02 19:00 +0100
    Re: Asterisk deadlocks since Kernel 4.1 Stefan Priebe - Profihost AG <s.priebe@profihost.ag> - 2015-12-03 09:30 +0100
    Re: Asterisk deadlocks since Kernel 4.1 Stefan Priebe <s.priebe@profihost.ag> - 2015-12-04 19:30 +0100
      Re: Asterisk deadlocks since Kernel 4.1 Herbert Xu <herbert@gondor.apana.org.au> - 2015-12-05 02:10 +0100
        Re: Asterisk deadlocks since Kernel 4.1 Stefan Priebe <s.priebe@profihost.ag> - 2015-12-06 22:00 +0100
          Re: Asterisk deadlocks since Kernel 4.1 Herbert Xu <herbert@gondor.apana.org.au> - 2015-12-07 02:30 +0100
            Re: Asterisk deadlocks since Kernel 4.1 Stefan Priebe - Profihost AG <s.priebe@profihost.ag> - 2015-12-07 08:00 +0100
              netlink: Add missing goto statement to netlink_insert Herbert Xu <herbert@gondor.apana.org.au> - 2015-12-08 07:20 +0100
                Re: netlink: Add missing goto statement to netlink_insert David Miller <davem@davemloft.net> - 2015-12-08 17:30 +0100
                Re: netlink: Add missing goto statement to netlink_insert Greg KH <greg@kroah.com> - 2015-12-09 04:40 +0100
          Re: Asterisk deadlocks since Kernel 4.1 Philipp Hahn <pmhahn@pmhahn.de> - 2015-12-07 08:50 +0100
    Re: Asterisk deadlocks since Kernel 4.1 Philipp Matthias Hahn <pmhahn@pmhahn.de> - 2015-12-05 15:20 +0100
      Re: Asterisk deadlocks since Kernel 4.1 Stefan Priebe <s.priebe@profihost.ag> - 2015-12-05 16:40 +0100
  Re: Asterisk deadlocks since Kernel 4.1 Philipp Hahn <pmhahn@pmhahn.de> - 2015-12-02 19:00 +0100
    Re: Asterisk deadlocks since Kernel 4.1 Hannes Frederic Sowa <hannes@stressinduktion.org> - 2015-12-02 19:30 +0100

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