Received: by 2002:a05:6a10:6744:0:0:0:0 with SMTP id w4csp5357436pxu; Wed, 21 Oct 2020 23:14:17 -0700 (PDT) X-Google-Smtp-Source: ABdhPJw8dp4ZVpIAXcz2cfqKpgrsybwAkH6DY5gX87TfVyEWX/vxAsKOpNMe55Yg90JXJ7Rn5US9 X-Received: by 2002:a17:906:1494:: with SMTP id x20mr763255ejc.339.1603347257150; Wed, 21 Oct 2020 23:14:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1603347257; cv=none; d=google.com; s=arc-20160816; b=JqvxLSsH00yI3DdpmupVjFs498EZKiHAsFs5JcR4vZTIP+IquMgcd3bCNquggMFiJK BaQ2nDSbN4+xE1TIaB2qrajvGNycv/o+mgrrbg7WZ8rlCrQb+NdqXlzDFv9yOZvj8+dC 6m6YvCKnVLPw9dKDFAXslDeLFSFWc0odPPLDidJTI2/RquAEFDVT3AZtD+Djpf0AD79D 2k2vU4bA4sv2L6loI08sWZEA4p/Cd+5Pts072uIrGYeVIGL5xwJ0eVK2HuQfR6vIxnHr ucxU/1ZuF21pkTK+dq9l/I7dYC5GIF/suyN3d+1sABf9abb8oNOsZi+w+g45lfO5jrhJ cWIg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:subject:message-id:date:from:in-reply-to :references:mime-version:dkim-signature; bh=7535FUlfM8DZDchGw8aykWjhU0FVacKPwMt6VunyyW4=; b=Ru2j/dNnR9hFu3PJvjQ9N0leBRdao4RW5EJ2HJkQFs5SiErzixHMLqxfto4rvmZMgF 1GprmmWcq2y7R0NczSY9rLwI8NipwtJ30JY/FOiRnpbwvcKIvvt5nbJknVqI7y1hTJaw RfuU5xiBsPmQaYnfqOVx6vaOsXDzEq2/Acv6rfKWvXZ4JuWmid2sW0j7N99Otxie7FlG g+fgp3vTJDMg+v8ZQ3I/rldFNP/W8jShKImHlv0iUZN6GfQ1G/1p0pfBBEdJ2lgeIoiJ tvNn+bZ28fL7f29LyRw1JiwvQ65yORJ7tb5GyrOrbGg11sfFZl/R4v90CvczyCaNnvx7 rNMQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=ub1i2qnq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p16si358399edy.362.2020.10.21.23.13.54; Wed, 21 Oct 2020 23:14:17 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=ub1i2qnq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2503415AbgJURXK (ORCPT + 99 others); Wed, 21 Oct 2020 13:23:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2443310AbgJURXK (ORCPT ); Wed, 21 Oct 2020 13:23:10 -0400 Received: from mail-io1-xd43.google.com (mail-io1-xd43.google.com [IPv6:2607:f8b0:4864:20::d43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DD0BAC0613CF for ; Wed, 21 Oct 2020 10:23:07 -0700 (PDT) Received: by mail-io1-xd43.google.com with SMTP id q9so3995577iow.6 for ; Wed, 21 Oct 2020 10:23:07 -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=7535FUlfM8DZDchGw8aykWjhU0FVacKPwMt6VunyyW4=; b=ub1i2qnqq5gc5yWa++WfJbKGLRDF3XgcjuF4SNEwsZorMl0qqBlkzzk65jDvd1rIp6 lsc7BJmCFH+/nkMbVQcVwn4bYWFUNTGPYV9LnCocI598fe1uL6/mDLuJIxfahYegMgmV O6P5shfiwBpbj5CWne+FmGk5phLqk0nId5IETHoA04NJ3VI8BSq+2EJbyBFyDYvD9KOQ SIXqL0Q6SqAfgMBeJW3/ZMjqQX2LwKMlStEFUHBOIC/HAkX92HVDxbei5SvC4AtBDDgM BjeK/N4wHt0pTqvRnrqr83fx4BR3FWwhR0strhBEMc39uPq0fD7cDyRbXeouxt7OuCWl kfYQ== 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=7535FUlfM8DZDchGw8aykWjhU0FVacKPwMt6VunyyW4=; b=C77QnBMiou+3yTE3wn2ToxOqfKWqrEqO9cMCJ31Vw1aHdPSAtFeuB+nkTI4W83Nhqs KCEc+UXviGMnw7J29H9WCu+DRWQhdWRjgSU2sqHDqX6YBoI5KboI3AqZQ25qcxU/0FN6 co1sSqpj6Cqn0dmLK6oJbX0owtMK841Xkwdq2tB32xl2Tj32BsyuNun1j1TAXvShLzW5 LVz9bqlbkutgYaKAlWSfJWNqqv2b9XkuzssR8qUjSM4uWQeJe7xt6xAVayVN7Ewmh4P+ Z3zJxCELEhK79opIKa2ZWpU70+B2HJmHjmHehCD596R7ONWbJxa1cVuLljLXXpLghsiC kucA== X-Gm-Message-State: AOAM531benW8nJgFVO1VRtfDq9WeEJP4JYZFPYJKUmcthZXQe+F1eHn7 DjkVJ1mn0AUhamODPaIK7XxHV7/5tapwbPucDPFDFnKOniJ4Pw== X-Received: by 2002:a6b:5c06:: with SMTP id z6mr3661750ioh.49.1603300986883; Wed, 21 Oct 2020 10:23:06 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Naresh Kamboju Date: Wed, 21 Oct 2020 22:52:55 +0530 Message-ID: Subject: Re: mmstress[1309]: segfault at 7f3d71a36ee8 ip 00007f3d77132bdf sp 00007f3d71a36ee8 error 4 in libc-2.27.so[7f3d77058000+1aa000] To: Linus Torvalds Cc: open list , linux-m68k , X86 ML , LTP List , lkft-triage@lists.linaro.org, Linux-Next Mailing List , linux-mm , kasan-dev , Christian Brauner , Ingo Molnar , Thomas Gleixner , "Matthew Wilcox (Oracle)" , "Peter Zijlstra (Intel)" , Al Viro , Geert Uytterhoeven , Viresh Kumar , zenglg.jy@cn.fujitsu.com, Stephen Rothwell , "Eric W. Biederman" , Dmitry Vyukov Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 21 Oct 2020 at 22:35, Linus Torvalds wrote: > > On Wed, Oct 21, 2020 at 9:58 AM Naresh Kamboju > wrote: > > > > LTP mm mtest05 (mmstress), mtest06_3 and mallocstress01 (mallocstress) tested on > > x86 KASAN enabled build. But tests are getting PASS on Non KASAN builds. > > This regression started happening from next-20201015 nowards > > Is it repeatable enough to be bisectable? Yes. This is easily reproducible. I will bisect and report here. > > Linus - Naresh