From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C997C433FE for ; Sat, 4 Sep 2021 17:23:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 623E8601FF for ; Sat, 4 Sep 2021 17:23:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237228AbhIDRYa (ORCPT ); Sat, 4 Sep 2021 13:24:30 -0400 Received: from relay.sw.ru ([185.231.240.75]:40668 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237110AbhIDRY2 (ORCPT ); Sat, 4 Sep 2021 13:24:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Content-Type:MIME-Version:Date:Message-ID:From: Subject; bh=gUqgvy02f4+L2h01QsSAozR5KCMkELC05U5xEFTXuHo=; b=OX9CrPeb4WhBmn5kh mmHSI5lvzDx1eJA3simcLU0apsqIltVri7faJXA4Agb8xSAOAf05zd2zWFNvBEK6gxrw0Xh1YFLq4 zqOcehzKduG13rX1n860gxYhJ12W9JnxXgMo+eftUWoyBF5oQiu17g/zsA9eL9U7IJBoJGFKrxUyo =; Received: from [10.93.0.56] by relay.sw.ru with esmtp (Exim 4.94.2) (envelope-from ) id 1mMZNz-000nOH-QK; Sat, 04 Sep 2021 20:23:23 +0300 Subject: Re: WARNING in sk_stream_kill_queues To: Eric Dumazet , Hao Sun , davem@davemloft.net, kuba@kernel.org, netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org References: <9a35a6f2-9373-6561-341c-8933b537122e@virtuozzo.com> <71e8b315-3f3a-85ae-fede-914269a15272@virtuozzo.com> <606daddf-6ca5-6789-b571-6178100432be@gmail.com> From: Vasily Averin Message-ID: Date: Sat, 4 Sep 2021 20:23:22 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <606daddf-6ca5-6789-b571-6178100432be@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/4/21 8:14 PM, Eric Dumazet wrote: > > > On 9/4/21 7:48 AM, Vasily Averin wrote: > >> Eric, >> this problem is not related to my patches. >> I've reproduced the problem locally on orignal kernel with original config, >> then I've applied last version of my patch -- but it did not help, issue was reproduced again, >> then I've reverted all my patches, see lest below -- and reproduced the problem once again >> >> Thank you, >> Vasily Averin >> >> b8a0bb68ac30 (HEAD -> net-next-5.15) Revert "ipv6: allocate enough headroom in ip6_finish_output2()" >> 1bc2de674a1b Revert "ipv6: ip6_finish_output2: set sk into newly allocated nskb" >> 780e2f7d9b93 Revert "skbuff: introduce skb_expand_head()" >> 782eaeed9de7 Revert "ipv6: use skb_expand_head in ip6_finish_output2" >> 639e9842fc1f Revert "ipv6: use skb_expand_head in ip6_xmit" >> 3b16ee164bcd Revert "ipv4: use skb_expand_head in ip_finish_output2" >> ab48caf0e632 Revert "vrf: use skb_expand_head in vrf_finish_output" >> 4da67a72ceef Revert "ax25: use skb_expand_head" >> 9b113a8a62f0 Revert "bpf: use skb_expand_head in bpf_out_neigh_v4/6" >> fc4ab503ce8f Revert "vrf: fix NULL dereference in vrf_finish_output()" >> > > OK, thanks for checking. > > The repro on my host does not trigger the issue, I can not really investigate/bisect. I"ve recompiled kernel with original config, It was booted very slowly, ~10 minutes, then reproducer worked a quite long time, node was crashed in 3000-4000 seconds uptime. Thank you, Vasily Averin