From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f49.google.com (mail-wm1-f49.google.com [209.85.128.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2CCED2030A for ; Thu, 4 Jan 2024 09:18:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=resnulli.us Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=resnulli.us Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=resnulli-us.20230601.gappssmtp.com header.i=@resnulli-us.20230601.gappssmtp.com header.b="lLx5a4iS" Received: by mail-wm1-f49.google.com with SMTP id 5b1f17b1804b1-40d858c56cbso3092195e9.2 for ; Thu, 04 Jan 2024 01:18:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=resnulli-us.20230601.gappssmtp.com; s=20230601; t=1704359930; x=1704964730; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=6xzvXsqtXoBqLLUQ409l/3T3uMW6S5JZhprzEseQcfw=; b=lLx5a4iS3hAE85+I70p6p5gk7yS6QH+QbV/2vS7VyJTBftqQdQnqQUXtUAPXOhXCnt EpncXdfA8LI21wLqmDq/u2LmFCifDkadJ/ueaGDBvM34AT5r3pGVZAjXdT+qP9gyCb3L yfqwrmdC8MGXHoy3D0oyZ8+HaE55PUVGw8pSgxiV7gJgPzs7JEyqK38XneOpV1AribnQ KSBxXrprUVrIWr8BN1V0q3cCbnSFJBkMwtx1ghdWyCyvoQulIUyvvqslAb8QY1PWBht8 gPeaQ/pec+qnvFjxC6aLPnsbZPR5g/a5sD5Viljss5OCkU3oHzaNYxGetHCLH3xd7Qoi dm6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704359930; x=1704964730; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=6xzvXsqtXoBqLLUQ409l/3T3uMW6S5JZhprzEseQcfw=; b=FLtuUfKSBsgS9m2U0GGc7d3IE1VbRxaVUK/YO8+Z5jEYfUYXagstu6e/+lkVy3xnn/ gnFd0fm01cQYKFl3KrikwTxQuzCgZSmrWyc4cRZNjLc+k5vgid1eziYiEgaSrRZWCV3M SJm0zMC5kDal8nBvKr2GXJd91SBvJEFxlCcIcFSeSINX+vMngTXwuZO3JB+WyUJVoPNT IxU6QWIlOvIiktNM5ECDE8cBD3BGKYgwo2ZRt9hq6DyVo+pOuGaAU0dZyOSl+6QOXy7J SzbQeTAAFwxqED7d8mlAnXn4hC799/dwbWNauxDR6RiGdO+nC80XwCESdCKvg5niUJgj cHtQ== X-Gm-Message-State: AOJu0YxhJT6N9/aNlsS9DqdP52ihyxpMETJo+ik442sH3zhafdeF6PRg QZgOru5oTTG0TCflZ69hkaJGVao7top0ZHZGhMeFuuVwMJIl8Q== X-Google-Smtp-Source: AGHT+IEFcHLmfME55S/kPYC32Ri1c9+9SYm/Itv112K+bQAbCgt3+FMzBSM8OWJ59ZQxJsidCVscoA== X-Received: by 2002:a05:600c:c05:b0:40d:5ab8:5758 with SMTP id fm5-20020a05600c0c0500b0040d5ab85758mr197706wmb.186.1704359930143; Thu, 04 Jan 2024 01:18:50 -0800 (PST) Received: from localhost (host-213-179-129-39.customer.m-online.net. [213.179.129.39]) by smtp.gmail.com with ESMTPSA id n6-20020a05600c4f8600b0040c3dcc36e6sm5059495wmq.47.2024.01.04.01.18.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Jan 2024 01:18:49 -0800 (PST) Date: Thu, 4 Jan 2024 10:18:48 +0100 From: Jiri Pirko To: Jakub Kicinski Cc: Kui-Feng Lee , netdev@vger.kernel.org, victor@mojatatu.com, jhs@mojatatu.com, xiyou.wangcong@gmail.com, pctammela@mojatatu.com, "David S. Miller" , Andrii Nakryiko , Alexei Starovoitov , Martin KaFai Lau , Kernel Team Subject: Re: net/sched - kernel crashes when replacing a qdisc node. Message-ID: References: <20240103180426.2db116ea@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240103180426.2db116ea@kernel.org> Thu, Jan 04, 2024 at 03:04:26AM CET, kuba@kernel.org wrote: >On Wed, 3 Jan 2024 17:41:54 -0800 Kui-Feng Lee wrote: >> The kernel crashes when running selftests/bpf/prog_tests/lwt_reroute.c. >> We got the error message at end of this post. >> >> It happens when lwt_reroute.c running the shell command >> >> tc qdisc replace dev tun0 root fq limit 5 flow_limit 5 >> >> The kernel crashes at the line >> >> block = cl_ops->tcf_block(sch, TC_H_MIN_INGRESS, NULL); > >This is the same as >https://lore.kernel.org/all/20231231172320.245375-1-victor@mojatatu.com/#r >right? Yes.