From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: fasnacht@protonmail.ch
Subject: Re: [PATCH nf] netfilter: nft_numgen: disable preempt to access per-cpu data
Date: Wed, 18 May 2022 17:35:25 +0200 [thread overview]
Message-ID: <YoUSPR2ZmQEDob4e@salvia> (raw)
In-Reply-To: <YoT8lLOVB0mRTXpv@salvia>
On Wed, May 18, 2022 at 04:03:00PM +0200, Pablo Neira Ayuso wrote:
> On Mon, May 16, 2022 at 10:55:52AM +0200, Pablo Neira Ayuso wrote:
> > [233241.951068] BUG: using smp_processor_id() in preemptible [00000000] code: nginx/2725
> > [233241.951220] caller is nft_ng_random_eval+0x24/0x54 [nft_numgen]
> > [233241.951225] CPU: 2 PID: 2725 Comm: nginx Tainted: G OE 5.16.0-0.bpo.4-amd64 #1 Debian 5.16.12-1~bpo11+1
> > [233241.951227] Hardware name: Supermicro SYS-5039MC-H8TRF/X11SCD-F, BIOS 1.7 11/23/2021
> > [233241.951228] Call Trace:
> > [233241.951231] <TASK>
> > [233241.951233] dump_stack_lvl+0x48/0x5e
> > [233241.951236] check_preemption_disabled+0xde/0xe0
> > [233241.951239] nft_ng_random_eval+0x24/0x54 [nft_numgen]
>
> For the record, patch applied to nf.git
I don't think my patch is correct, I should disable_bh instead.
I kept it back.
prev parent reply other threads:[~2022-05-18 15:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-16 8:55 [PATCH nf] netfilter: nft_numgen: disable preempt to access per-cpu data Pablo Neira Ayuso
2022-05-18 14:03 ` Pablo Neira Ayuso
2022-05-18 15:35 ` Pablo Neira Ayuso [this message]
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