Re: Linux 4.1.28

From	Thomas Voegtle <tv@lio96.de>
Newsgroups	linux.kernel
Subject	Re: Linux 4.1.28
Date	2016-08-02 18:20 +0200
Message-ID	<s1KAb-6OZ-67@gated-at.bofh.it> (permalink)
References	<rUEzw-3o6-33@gated-at.bofh.it> <rV9N0-6nQ-21@gated-at.bofh.it> <rV9WG-6re-9@gated-at.bofh.it> <rVb2r-7js-43@gated-at.bofh.it> <rWV3b-7pU-9@gated-at.bofh.it>
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On Wed, 20 Jul 2016, Michal Kubecek wrote:

> On Fri, Jul 15, 2016 at 03:04:48PM +0200, Thomas Voegtle wrote:
>> And that one?
>> Happens while trying to start a firewall script with iptables-restore.
>>
>> [  180.071999] NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s!
>> [iptables-restor:2338]
> ...
>> [  180.072000] Call Trace:
>> [  180.072000]  [<ffffffff8111a923>] ? __kmalloc_node+0x26/0x2d
>> [  180.072000]  [<ffffffff81667495>] ? cpumask_next+0x1b/0x1d
>> [  180.072000]  [<ffffffff81668ec3>] ? xt_alloc_table_info+0xc2/0xdf
>> [  180.072000]  [<ffffffffc05be6c3>] do_ipt_set_ctl+0xfd/0x193 [ip_tables]
>> [  180.072000]  [<ffffffff81665181>] nf_sockopt+0x64/0x7e
>> [  180.072000]  [<ffffffff816651cc>] nf_setsockopt+0x1c/0x20
>> [  180.072000]  [<ffffffff81674dd1>] ip_setsockopt+0x6e/0x8e
>> [  180.072000]  [<ffffffff8168fe47>] raw_setsockopt+0x11/0x4c
>> [  180.072000]  [<ffffffff816296ab>] sock_common_setsockopt+0xf/0x11
>> [  180.072000]  [<ffffffff81628ab2>] SyS_setsockopt+0x85/0xa5
>> [  180.072000]  [<ffffffff816e7dee>] system_call_fastpath+0x12/0x71
>
> This should be the problem addressed by
>
>   http://article.gmane.org/gmane.linux.network/422215
>
> Michal Kubecek

Hi,

I re-checked your patch today on top of a 4.1.29 and I'm very sorry
to say it actually does fix the problem despite what I wrote a few days 
ago.

I don't know why I saw the problem while I was sure I had that patch
applied. Maybe I mixed up the builds. Should have double checked it.

So, if that patch would appear in the next 4.1.y, that would be great.

talking about that patch:
  https://patchwork.ozlabs.org/patch/650120/
(as gmame is down atm)

thanks,

    Thomas

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Re: Linux 4.1.28 Thomas Voegtle <tv@lio96.de> - 2016-08-02 18:20 +0200
  Re: Linux 4.1.28 Michal Kubecek <mkubecek@suse.cz> - 2016-08-02 21:30 +0200

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