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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 26551C2BB85 for ; Sun, 12 Apr 2020 05:37:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F420C20709 for ; Sun, 12 Apr 2020 05:37:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="XaNBDFvb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725815AbgDLFhB (ORCPT ); Sun, 12 Apr 2020 01:37:01 -0400 Received: from mail-lf1-f68.google.com ([209.85.167.68]:44027 "EHLO mail-lf1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725832AbgDLFhB (ORCPT ); Sun, 12 Apr 2020 01:37:01 -0400 Received: by mail-lf1-f68.google.com with SMTP id k28so4170168lfe.10 for ; Sat, 11 Apr 2020 22:36:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=vvlpjcamHI+sCRPT64OJBF1nLanNoQNuKy4qrc0A8Ho=; b=XaNBDFvb3+awYcw1mwatbhAG6DCTxggAi00jDqO3PHi100YJh+gb12/DtiDFlJFzNi ziPCn5qFxZqIbSNcjFfjXKiIdeMX3Q+VgfyOcs1yi6Lm874+VXCS6uYuburIy2b1hJ6s fLtc/sg+4wwXILtlpfzMzY8RLvAAlPJiW8FQV5BRFP7oIPPV9XLsPYCNJjLOZozLseeA I9CLaRsOGyabLbYoxtG17nRYELogY52KhMGBy9yZ5RgDQnetmuYZvxKlCg/T7TFG7AH1 3FN5nc1vU5cPFyZrZNkHXnsmSATGDAJ6qj5xIK04aOrRDdbAu3UmwrQ9ggcbwV7SStbA VeXw== 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=vvlpjcamHI+sCRPT64OJBF1nLanNoQNuKy4qrc0A8Ho=; b=Y5ak7AZT1g+swgDWCsZBeeJZ2RoevmtyoRWXRNbtTO10rXGAANdC+swwXnnapBOfai 7HLUh6riTmURjNvN11qEwSPri6Si4OrQk2qd7K118QyPDFb2N5vT1QQPSGmYAtA9O0xs SP9Nx/x8m81EplEx/lFvvGc+bBLKbdWlZ5sXX0fhPuB9eBH42srzaqRk2l82QUMht/U2 jeQcJBKXZaF71HfAuU8+Se4d8ABzpCurk5AC+JZ4lSorQNQPldqdFXJLs2NIqLvDyka3 Y9Y1hZDp6Y9IQLCbTDrqx1lpBaX0Ikhn7dIhLDqvBAysXws1hlpu0EZkt6bzIh41htAf Kv5w== X-Gm-Message-State: AGi0PubxsStH07Aa98H5hjZpjf7rGUqu0KlF/gXMIAfCdUoXmISj2zgW o4P0FCzO1ogIJwEAi9naxVNqS0n6MC3J4PCc8bLbQA== X-Google-Smtp-Source: APiQypJO0rLSq2wqjOcqnPFw+foByEEkhPjwfZIfx3KIjJS4qePu4Y3CTsxfyo0GmPcVOkZrWiHbT87CuBWEhFREOUs= X-Received: by 2002:a19:c64b:: with SMTP id w72mr6922572lff.82.1586669817377; Sat, 11 Apr 2020 22:36:57 -0700 (PDT) MIME-Version: 1.0 References: <20200410132706.170811b7@canb.auug.org.au> <27c212c4-b522-561d-411c-e74dc0ff0b74@infradead.org> <2b0f5d2e-3fe5-10c9-2a9a-9a0b341a52d5@infradead.org> In-Reply-To: From: Naresh Kamboju Date: Sun, 12 Apr 2020 11:06:46 +0530 Message-ID: Subject: Re: linux-next: Tree for Apr 10 (lib/test_printf.ko) To: Randy Dunlap Cc: Linus Torvalds , Greg Kroah-Hartman , "Rafael J. Wysocki" , Stephen Rothwell , Linux Next Mailing List , Linux Kernel Mailing List , Rasmus Villemoes , Brendan Higgins , Heikki Krogerus Content-Type: text/plain; charset="UTF-8" Sender: linux-next-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org FYI, Is this problem related to, Regression reported on Linux next 5.6.0-rc4-next-20200305 on x86_64, i386, arm and arm64. The steps to reproduce is running kselftests lib printf.sh test case. Which is doing modprobe operations. BUG: kernel NULL pointer dereference, address: 00 - ida_free+0x76/0x140 https://lore.kernel.org/linux-kselftest/CAFd5g46Bwd8HS9-xjHLh_rB59Nfw8iAnM6aFe0QPcveewDUT6g@mail.gmail.com/T/ -- Linaro LKFT https://lkft.linaro.org