From: Arturo Borrero Gonzalez <arturo@netfilter.org>
To: Stefano Brivio <sbrivio@redhat.com>
Cc: "netfilter-devel@vger.kernel.org" <netfilter-devel@vger.kernel.org>
Subject: Re: nft_pipapo_avx2_lookup backtrace in linux 5.10
Date: Fri, 7 May 2021 13:12:43 +0200 [thread overview]
Message-ID: <a044a8bb-e7cd-35e5-9602-0879f872656c@netfilter.org> (raw)
In-Reply-To: <20210507123636.030e98ef@elisabeth>
On 5/7/21 12:36 PM, Stefano Brivio wrote:
>
> Can you reproduce this reliably? That would be helpful.
>
No :-( this is a live production system. The backtrace was triggered by real
life traffic. Even worse, I can't hack the kernel with a patch ... We should
stick to debian kernel builds for production systems per our internal policy.
However, the nft ruleset is quite simple. It should be possible for you to grab
a similar arch CPU, introduce the ruleset and generate some traffic to trigger
the lookup(), no?
Thanks for your prompt response, also Florian for the patch proposal!
next prev parent reply other threads:[~2021-05-07 11:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-07 9:26 nft_pipapo_avx2_lookup backtrace in linux 5.10 Arturo Borrero Gonzalez
2021-05-07 10:35 ` Florian Westphal
2021-05-07 10:52 ` Stefano Brivio
2021-05-08 1:00 ` Stefano Brivio
2021-05-09 11:00 ` Arturo Borrero Gonzalez
2021-05-07 10:36 ` Stefano Brivio
2021-05-07 11:12 ` Arturo Borrero Gonzalez [this message]
2021-05-08 1:00 ` Stefano Brivio
2021-05-09 10:58 ` Arturo Borrero Gonzalez
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