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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE317C433EF for ; Sat, 7 May 2022 01:34:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1445210AbiEGBiY (ORCPT ); Fri, 6 May 2022 21:38:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1445193AbiEGBiX (ORCPT ); Fri, 6 May 2022 21:38:23 -0400 Received: from mail-qk1-x72c.google.com (mail-qk1-x72c.google.com [IPv6:2607:f8b0:4864:20::72c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B4085FF0C for ; Fri, 6 May 2022 18:34:38 -0700 (PDT) Received: by mail-qk1-x72c.google.com with SMTP id j6so7137285qkp.9 for ; Fri, 06 May 2022 18:34:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=zThBLjiNsJCeKFFlhe1rfqlDr71g2WujQnHwvs4lPvQ=; b=cnnmTvdiFiJlA1KHKlWizOlqgzOyaYfTiY5rGb5u2xg7fz94vKshHcZwcHKwdIT3lG bEToF+k9+HkdLYhtzSp808Bd5iNJytHYdrW8lEymf7KFXZs2EJ6HbbHypueVlSPQKyFk ON417m9gya143SlwI2D5gAYo8JIiNCRPvqTSGCNCIecmjwglMeUFhS55RMKzcA6Ta+6F D+XwyKoKMoYdZeNHbVEoNEWk0RU3BzX/xL0eumfvE3vyZmYuf8sXXVAFDcDd6XXu6oLT ngxAmja5WO6R+XJYJV8E0VHq/uA1gCTRKKYmwloK01Td1clNFEnImGAWq/iCwX9XIxk6 TYOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=zThBLjiNsJCeKFFlhe1rfqlDr71g2WujQnHwvs4lPvQ=; b=P0t1hVPF5EGP6NOo/SgrSaAKIUoBGrLsi+joB+Ah7NTAWW+0tuV5BWmNJXMhHyuAsx tSYW5DULspH/ZSZQHsFgop4q9hMTx4GmvkVwxU77qiQkR0GQI9CkKM53Lo3uYobqEvHF Ul3WEgBvRQTSqwayXOPuLcaf1APB3XvU1W7LhDFPk84SUS/kWseY96HY8zZMawkH1Oy+ qN+R17m0Xy66myNnae/WLFrCGIlyujKg2xdpWXX7TjNPsMN9SJQK6C6bV4j6CO5NTr1P 2XBbokGr+fSJUkVWjDYFkMMguaIRaa6kmaVJQ6CRu3Udrnkp0dfIoLAwm7LaVeSbxz+J aBTg== X-Gm-Message-State: AOAM530t7Y97vw9586k9KLLd9yVndzAW6lme7+a5QM6OcNwyVcCgottG Fiko28QFCA2XepLNeyBIutcMnQ== X-Google-Smtp-Source: ABdhPJy79gsfVlLMNpSVrQumWl+7nsmo4IRnzXwP0HzsnAheLZXd5e+jHFAOnraCXjJB7smkog8HDw== X-Received: by 2002:a05:620a:c86:b0:69f:c7cb:935a with SMTP id q6-20020a05620a0c8600b0069fc7cb935amr4446672qki.229.1651887277670; Fri, 06 May 2022 18:34:37 -0700 (PDT) Received: from ziepe.ca (hlfxns017vw-142-162-113-129.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.162.113.129]) by smtp.gmail.com with ESMTPSA id c14-20020ac8518e000000b002f39b99f694sm3460795qtn.46.2022.05.06.18.34.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 May 2022 18:34:36 -0700 (PDT) Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1nn9LA-002jCW-1X; Fri, 06 May 2022 22:34:36 -0300 Date: Fri, 6 May 2022 22:34:36 -0300 From: Jason Gunthorpe To: Bjorn Helgaas Cc: Volodymyr Babchuk , "linux-pci@vger.kernel.org" , Alex Williamson , Leon Romanovsky Subject: Re: Write to srvio_numvfs triggers kernel panic Message-ID: <20220507013436.GB63055@ziepe.ca> References: <87a6bxm5vm.fsf@epam.com> <20220506201722.GA555374@bhelgaas> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220506201722.GA555374@bhelgaas> Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Fri, May 06, 2022 at 03:17:22PM -0500, Bjorn Helgaas wrote: > > Modules linked in: xt_MASQUERADE iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 > > nf_defrag_ipv4 libcrc32c iptable_filter crct10dif_ce nvme nvme_core at24 > > pci_endpoint_test bridge pdrv_genirq ip_tables x_tables ipv6 > > CPU: 3 PID: 287 Comm: sh Not tainted 5.10.41-lorc+ #233 > > Hardware name: XENVM-4.17 (DT) ^^^^^^^^^^^^^^^^^ > So this means the VF must have an SR-IOV capability, which sounds a > little dubious. From PCIe r6.0: Enabling SRIOV from within a VM is "exciting" - I would not be surprised if there was some wonky bugs here. Jsaon