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From: Andreas Hartmann <andihartmann@01019freenet.de>
To: netdev@vger.kernel.org
Cc: john.fastabend@gmail.com, Michal Kubecek <mkubecek@suse.cz>
Subject: Re: Linux 4.14 - regression: broken tun/tap / bridge network with virtio - bisected
Date: Sun, 3 Dec 2017 12:35:52 +0100	[thread overview]
Message-ID: <4efbaf24-f419-2c8e-c705-59a5242b0575@01019freenet.de> (raw)
In-Reply-To: <2e2392b7-84c5-be89-b0e5-5bae3b2fdaed@01019freenet.de>

On 12/01/2017 at 11:11 AM Andreas Hartmann wrote:
> Hello!
> 
> I hopefully could get rid of both of my problems (hanging network w/
> virtio) and endless hanging qemu-process on VM shutdown by upgrading
> qemu from 2.6.2 to 2.10.1. I hope it will persist.

It didn't persist. 10h later - same problems happened again. It's just
much harder to trigger the problems.

I'm now trying it with

CONFIG_RCU_NOCB_CPU=y and
rcu_nocbs=0-15

Since then, I didn't see any problem any more. But this doesn't mean
anything until now ... .


Regards,
Andreas

  reply	other threads:[~2017-12-03 11:35 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-26 14:17 Linux 4.14 - regression: broken tun/tap / bridge network with virtio - bisected Andreas Hartmann
2017-11-27 16:46 ` Andreas Hartmann
2017-11-27 16:55   ` Michal Kubecek
2017-11-27 19:09     ` Andreas Hartmann
2017-12-01 10:11 ` Andreas Hartmann
2017-12-03 11:35   ` Andreas Hartmann [this message]
2017-12-04 16:28     ` Andreas Hartmann
2017-12-05  3:50       ` Jason Wang
2017-12-05 16:23         ` Andreas Hartmann
2017-12-06  3:08           ` Jason Wang
2017-12-08  7:21             ` Andreas Hartmann
2017-12-08  8:47               ` Michal Kubecek
2017-12-08 10:31                 ` Andreas Hartmann
2017-12-08 11:40                   ` Michal Kubecek
2017-12-08 12:45                     ` Andreas Hartmann
2017-12-08 12:58                       ` Michal Kubecek
2017-12-08 13:13                         ` Andreas Hartmann
2017-12-08 15:11                           ` Jason Wang
2017-12-08 16:04                     ` Willem de Bruijn
2017-12-08 20:11                       ` Andreas Hartmann
2017-12-08 20:44                         ` Andreas Hartmann
2017-12-11 15:54                           ` Andreas Hartmann
2017-12-14 16:31                             ` Andreas Hartmann
2017-12-14 22:17                             ` Willem de Bruijn
2017-12-14 22:47                               ` Willem de Bruijn
2017-12-15  6:05                               ` Andreas Hartmann
2017-12-17 22:33                                 ` Willem de Bruijn
2017-12-18 17:11                                   ` Andreas Hartmann
2017-12-20 15:56                                     ` Andreas Hartmann
2017-12-20 22:44                                       ` Willem de Bruijn
2017-12-21 17:05                                         ` Andreas Hartmann
2017-12-21 17:11                                           ` Willem de Bruijn
2017-12-24 16:24                                       ` Andreas Hartmann
2017-12-24 18:54                                         ` Willem de Bruijn

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