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=-5.8 required=3.0 tests=BAYES_00,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 BED04C64E7A for ; Fri, 20 Nov 2020 18:33:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6B53E22470 for ; Fri, 20 Nov 2020 18:33:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="V+M+ohGO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730739AbgKTScw (ORCPT ); Fri, 20 Nov 2020 13:32:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730462AbgKTSco (ORCPT ); Fri, 20 Nov 2020 13:32:44 -0500 Received: from mail-qv1-xf41.google.com (mail-qv1-xf41.google.com [IPv6:2607:f8b0:4864:20::f41]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9863C0617A7 for ; Fri, 20 Nov 2020 10:32:44 -0800 (PST) Received: by mail-qv1-xf41.google.com with SMTP id p12so2941552qvj.13 for ; Fri, 20 Nov 2020 10:32:44 -0800 (PST) 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=iWqrZShOD+kRcre329kKVLGBiUFIo9BUZTpNDUEM+ic=; b=V+M+ohGOZ4Vys/bIL+F/am2Z09M0O/OjVX62sCjm0xlNyRUUTZcDFeWXP66tqIj143 TXbGk0c5xLXXgTTMMfQzsOldHOJNi2TNxA1S/WOgHEeoBHKCL+mwk3GYOOwZ08D7GULj aRPrtYvMSuHm6eG/P2PQwHr+atBnSQwVPnAWUwYhMUagBvNOkcQpSBpwCDdJQkXZ9yyK XJ7lFP29cx+xJSKbVqwOiteimNYTAE9tBrYBrBG0kxMrBhpu1akQV0kS+ajRCRfsFUbO pSgCaPdFAIbDVEbHVkqnyCqKVqDol4cAPp9rXiJKi9/ODsd6ZWL+65eGu1FcVFal2IV2 arVw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=iWqrZShOD+kRcre329kKVLGBiUFIo9BUZTpNDUEM+ic=; b=DLhsE0srFI7vHhfn3IwWkpXa7ZYcBt0AgvpXZ7NOnhlwPQZaNyRqyS0P3zMHTusvPx zqxbykzNndbWKkexvB7QB+2Imza2YkeTFAoteD4ZEYkHUICST/QXstowXqUuU5aB0JEz eAA0Lq0CGli9b9OrwY4U0HohtzWz2xQp/GuGlqDnrvfZgaPRlLNSHidDkuMjDTxnQrdK fd49zz59Ngh2H+oHC0q//V5pdMP0daCNIDO1hE5mY84s7KLceXJSj6E3betQpw1IzNro eOp+jWV4m5hcTBRDz30oleryAWvdOvJs7Fo2OFIRJG5+L++L6yqLlIGa8ZrHxI1iHW+S DMTg== X-Gm-Message-State: AOAM531K769kJZdn/KGQeNvDsXjpZT7nEmNty+NMgg6fN3RgUqnVVTF4 j8tzR7paqHnvGZlc2QgRnHfmAw== X-Google-Smtp-Source: ABdhPJyRRjRCoFGRFb7jaVk+jooMV/sXva+uftYeveZslt+PAcJG3pQJq4SW9oIhiR+Ru8ji9TDGmw== X-Received: by 2002:a0c:df0f:: with SMTP id g15mr18206883qvl.19.1605897163961; Fri, 20 Nov 2020 10:32:43 -0800 (PST) Received: from ziepe.ca (hlfxns017vw-156-34-48-30.dhcp-dynamic.fibreop.ns.bellaliant.net. [156.34.48.30]) by smtp.gmail.com with ESMTPSA id w30sm2568810qkw.24.2020.11.20.10.32.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Nov 2020 10:32:43 -0800 (PST) Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1kgBD8-008upw-RH; Fri, 20 Nov 2020 14:32:42 -0400 Date: Fri, 20 Nov 2020 14:32:42 -0400 From: Jason Gunthorpe To: syzbot Cc: dledford@redhat.com, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, parav@mellanox.com, syzkaller-bugs@googlegroups.com Subject: Re: possible deadlock in rdma_destroy_id Message-ID: <20201120183242.GR244516@ziepe.ca> References: <0000000000002653f805b48b50f5@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000002653f805b48b50f5@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 20, 2020 at 07:15:21AM -0800, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 20529233 Add linux-next specific files for 20201118 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=124ae36e500000 > kernel config: https://syzkaller.appspot.com/x/.config?x=2c4fb58b6526b3c1 > dashboard link: https://syzkaller.appspot.com/bug?extid=76c931ae5fdee51fff5b > compiler: gcc (GCC) 10.1.0-syz 20200507 > > 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+76c931ae5fdee51fff5b@syzkaller.appspotmail.com #syz dup: possible deadlock in _destroy_id