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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74FF9C433EF for ; Mon, 4 Oct 2021 13:47:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5DD0E60F58 for ; Mon, 4 Oct 2021 13:47:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238631AbhJDNt1 (ORCPT ); Mon, 4 Oct 2021 09:49:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238554AbhJDNtX (ORCPT ); Mon, 4 Oct 2021 09:49:23 -0400 Received: from mail-qt1-x82f.google.com (mail-qt1-x82f.google.com [IPv6:2607:f8b0:4864:20::82f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4E47C048D8F for ; Mon, 4 Oct 2021 06:15:18 -0700 (PDT) Received: by mail-qt1-x82f.google.com with SMTP id e16so5324594qts.4 for ; Mon, 04 Oct 2021 06:15:18 -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=fY9n46rDsSqLMN7tBVm5DkKE+DclMqI1aoIh5QrW0JU=; b=iZJhKEVypu+NCt4ahJaoSu1aX1jv1yJtEXpg+MWzlVkavx5jZ7WyxDtcjBcc3R1AeM NgjRZYeTqiGWfl4nc+P2i3+xCcTGISosY1pUvxPygefIjpgDZ3KML+XqZ+HCSv1xr4Bt 7MnpOL5tpS17YpMKqpPEWZ2VVIeNdJutSACJ4h6/yfG6iK+x8UuQKYO1kPqxVmXka4da 9P2ciRDbs/aKUMPguhg210MJLvQI2EXIwvgCKPqfMQyPWvjArAi95Itf1zn8371nGXyI NqSqhrR2PXx3U5PwaOyGyvWb7+jXo5ApTEbnfdp23pWIxLlvXizhOK6WzeFJ+ABJIwIu cxjg== 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=fY9n46rDsSqLMN7tBVm5DkKE+DclMqI1aoIh5QrW0JU=; b=zS7Q7Aqrds6OBZFaKjX2qrMAxzvv+OpvLXEKAaqzQ9xDDOsHk0lsS3dM5pBlYan1a8 1mxcTShvkMA+Mgex2wsgAWWJpPARLYkImu0tLgyNHXH0lJPe7xCDexACX5NC+Xy4W+h6 azrVqqbYoxxHytEexYbLQ4Fma6hCUIZbmfnu/TYlQKZ2UoPnCzrQnmdhfjWnbS2LfjWM Vo8LNMFSfjX+2wHtTbA+anmZUaiSWE1u4Tn74jWceAHTR8ypOaLVlXXvEEh3N9AKDUEG JEFjfPqTA4xpxr85Kiw80vozPlesE0Dht46Cd4csDvsysTplpZV7M2wSODRRIY8xbgaA xO1A== X-Gm-Message-State: AOAM532KNZR0OQw3sUrkPkqPTThWdjJ5j1HCrOI+m+pg4cyMcbtLX1HB /MoINPSx7tnGa2VFXGlbcisXyQ== X-Google-Smtp-Source: ABdhPJw7crTLfE4bAH1OXES9Zrqk0qb0l4QL4UGjCzEqwVNdATMRymZwHwJT8JRpJ/UKqhci7W7yLg== X-Received: by 2002:a05:622a:178b:: with SMTP id s11mr13852404qtk.13.1633353317883; Mon, 04 Oct 2021 06:15:17 -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 y6sm7505053qkj.26.2021.10.04.06.15.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Oct 2021 06:15:17 -0700 (PDT) Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1mXNoK-00ATbM-PB; Mon, 04 Oct 2021 10:15:16 -0300 Date: Mon, 4 Oct 2021 10:15:16 -0300 From: Jason Gunthorpe To: Dmitry Vyukov Cc: Doug Ledford , syzbot , Leon Romanovsky , RDMA mailing list , linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] BUG: RESTRACK detected leak of resources Message-ID: <20211004131516.GV3544071@ziepe.ca> References: <0000000000005a800a05cd849c36@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Mon, Oct 04, 2021 at 02:42:11PM +0200, Dmitry Vyukov wrote: > On Mon, 4 Oct 2021 at 12:45, syzbot > wrote: > > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: c7b4d0e56a1d Add linux-next specific files for 20210930 > > git tree: linux-next > > console output: https://syzkaller.appspot.com/x/log.txt?x=104be6cb300000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=c9a1f6685aeb48bd > > dashboard link: https://syzkaller.appspot.com/bug?extid=3a992c9e4fd9f0e6fd0e > > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > > > Unfortunately, I don't have any reproducer for this issue yet. > > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > Reported-by: syzbot+3a992c9e4fd9f0e6fd0e@syzkaller.appspotmail.com > > +RESTRACK maintainers > > (it would also be good if RESTRACK would print a more standard oops > with stack/filenames, so that testing systems can attribute issues to > files/maintainers). restrack certainly should trigger a WARN_ON to stop the kernel.. But I don't know what stack track would be useful here. The culprit is always the underlying driver, not the core code.. Anyhow, this report is either rxe or rds by the look of it. Jason