From: Ricardo Nabinger Sanchez <rnsanchez@gmail.com>
To: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
netdev@vger.kernel.org
Subject: Re: panic in udp_init() when using FORCE_NR_CPUS
Date: Tue, 13 Jun 2023 18:41:46 -0300 [thread overview]
Message-ID: <20230613184146.66d89282@espresso.lan.box> (raw)
In-Reply-To: <CANn89iKzZsyT-C-Ge6nPzC9Oo0f+gf5HZXbmXnePvSi+v4vuUg@mail.gmail.com>
On Tue, 13 Jun 2023 23:05:34 +0200
Eric Dumazet <edumazet@google.com> wrote:
> I suspect you run with LOCKDEP enabled (CONFIG_PROVE_LOCKING=y)
> and a very big NR_CPUS ?
>
> LOCKDEP makes spinlock_t 16 times bigger :/
>
> If so, please try the following fix.
CONFIG_LOCKDEP_SUPPORT=y
Now I'm using only 12 CPUs, per my other message where I disabled MAXSMP
and really set NR_CPUS, resulting in a successful boot.
It may be true that earlier it was architectures's max (8192). Maybe
that was the real issue, then?
Best regards,
--
Ricardo Nabinger Sanchez
Dedique-se a melhorar seus esforços.
Todas as suas conquistas evolutivas não foram resultado dos
deuses, das outras consciências, ou do acaso, mas unicamente
da sua transpiração. ---Waldo Vieira, Léxico de Ortopensatas
next prev parent reply other threads:[~2023-06-13 21:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-13 19:56 panic in udp_init() when using FORCE_NR_CPUS Ricardo Nabinger Sanchez
2023-06-13 20:19 ` Eric Dumazet
2023-06-13 21:05 ` Eric Dumazet
2023-06-13 21:41 ` Ricardo Nabinger Sanchez [this message]
2023-06-13 21:22 ` Ricardo Nabinger Sanchez
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