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=-5.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 32F5DC47082 for ; Tue, 8 Jun 2021 18:15:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 13EFE613AC for ; Tue, 8 Jun 2021 18:15:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233603AbhFHSRO (ORCPT ); Tue, 8 Jun 2021 14:17:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53460 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231517AbhFHSRN (ORCPT ); Tue, 8 Jun 2021 14:17:13 -0400 Received: from mail-qk1-x736.google.com (mail-qk1-x736.google.com [IPv6:2607:f8b0:4864:20::736]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4ED06C061574 for ; Tue, 8 Jun 2021 11:15:20 -0700 (PDT) Received: by mail-qk1-x736.google.com with SMTP id c138so8247229qkg.5 for ; Tue, 08 Jun 2021 11:15:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=R4gyjae6wpuF0F3UPNTz9EYia+u4eGVeslD36G4A6A8=; b=HmnS6I0zW+CjFx3gMqu3m7KhbMelD2JQ6LGN/L7/0vuXX2xs9lVt5ptH2SH149mDiT G8ytD3/Fks1xdJldXlkTHNNH0sfqwcz0CuenxGBdJNgcLod8ZjGdzQlwylJOPsH8CIus AtrD6ScfuJbn8mjE2P7BJyi5iF4Mts8dPqhwg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=R4gyjae6wpuF0F3UPNTz9EYia+u4eGVeslD36G4A6A8=; b=hBt0W8Hq8uaK688CW0ttmgtq1ZY0J2zaIE08YDBiESc20C1erfeqr04U+DpchNJ5QA ySQIAaX1RMa5id52yuQ2ShpW+nQGKW+fEbb1EW53PRUHDp8sqMTz7opnPZsWD4b3bMnK 6qY3dcYo/zcxntyBTLHy+bDklerxoAG+ypMWSgZGwgMcrWHQVy7rTPUKyqWqe0PRyJRH OJv5ZdAWcXx4giuVttO1jv5IUbrQwfj3HgWnQUOWi6LHVZFJrA96FXmnCBPL1ejNQBmZ RfD5kX++l71m23paE8eIPZ9qslthOYcQbA3q+bbbdDf2p7w2c5NQB3u2bE/KX+CZxMVz fgbA== X-Gm-Message-State: AOAM530eKOZzeDTBOyNsdkd4KNhdJvqoUGMMIsnybGnU4RT7Ws3rE9+J ejqNDk+QWcDC5KKc1PLGwvqXRz9IfwA5iihrTEm0OA== X-Google-Smtp-Source: ABdhPJwHUXQYURDN6H8ACCGIceQ1nE2eu5xJXg0yi3cxAyh8k56PSob+alPdSoIXQthgxkRG9k5VZzDbJuqVkaF4f+U= X-Received: by 2002:a37:8747:: with SMTP id j68mr20304119qkd.165.1623176119215; Tue, 08 Jun 2021 11:15:19 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Michael Chan Date: Tue, 8 Jun 2021 11:15:08 -0700 Message-ID: Subject: Re: bnxt_en NIC driver crashes IO_PAGE_FAULT To: Roman Steinhart Cc: David Miller , Jakub Kicinski , Netdev , open list Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000050e0a05c445243f" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --000000000000050e0a05c445243f Content-Type: text/plain; charset="UTF-8" On Tue, Jun 8, 2021 at 10:53 AM Roman Steinhart wrote: > We received a bunch of new servers with a Supermicro H12SSL-NT > mainboard that has an embedded Broadcom BCM57416 NIC. > > On all those servers we observe crashes of the NIC driver (bnxt_en) from > time to time. We're not able to manually reproduce this issue, it just occurs at > some point. Also our monitoring does not show any irregularities(high traffic > flow or sth. like this). > These IOMMU faults are seen on AMD systems, right? We have also seen similar issues on some AMD systems and have worked with AMD to debug the issues. I'll likely have someone who's more familiar with these AMD IOMMU issues contact you. 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