Received: by 2002:a25:683:0:0:0:0:0 with SMTP id 125csp828529ybg; Tue, 9 Jun 2020 14:01:59 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxLdJSuzRY4ODQ3lJDXZi4m8ND6SfyaQ2br9RWvNsHrBBlsYW9FgonKq+AuSo9kzVmqoF+A X-Received: by 2002:a17:906:1a06:: with SMTP id i6mr271218ejf.9.1591736519220; Tue, 09 Jun 2020 14:01:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1591736519; cv=none; d=google.com; s=arc-20160816; b=Oi7k8AVVDBjWawQEQ5H7kU3grBGbLXg/6q+pu35WFB1tuJZaE1I9Njzjmk99kEGWp3 FkmUgwi5Iy5ZQu7jEyMK2t3fWaTxGCICA9yHFyx/gLyksk41dxmZNuSShvt/+W/AeaZo uuicifIWRqz87dlQddDV2tcWGID54M0vI7szM8yd5CPrw76t5Ub2lQIvk5l4TGCQ5xmW p45fFXH02hv8UxiVKXtWXdS33W7HXC3LLjoTyip7RkxI7VehT4FVOsTTW8EkMXov709A /BTsljFaqyl4SO0J2esw8nUlKyIZhDHAMiMil39D20demsP1vDFsJhrqrJJtKpF40ois tc9g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from; bh=slXFWMtdwuxhW2Z5cP9CZ/xSC4H4E2I9FjcK2oOTiWE=; b=I/NmJB5pCtQkk9M1NF8865eGuljgKzv1Kb+Lw+CiWir6TAu/XnITDnOSb5HwYTC/5/ z7MKW3cM1CBeb0d/7b6Y7azR7U8lSxxyNQwkeo5GzEfH9dlOtTw2ggMkD/eKZr9ebclh kP5TD9HTrhGIycnUCzlb6VzrSgt8B5/G8FfEMCpnDMT5HXHtQ9SHo4JPhR+heOM4JtwB BM+L3sXJwI4GtmScipoUkKJPtGMW3+ZB2VNw8WtXqM73NNUjdzN9PE5R0zdQqDX7sqlV OxREnSlApmf9uVbQRSBl5M0iZxsOAyx4dE2mFy64N+uFhlmkXXKq+14vJLIGi/qv76n/ mCpw== ARC-Authentication-Results: i=1; mx.google.com; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id dp4si14384013ejc.258.2020.06.09.14.01.34; Tue, 09 Jun 2020 14:01:59 -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; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726942AbgFIUvg (ORCPT + 99 others); Tue, 9 Jun 2020 16:51:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726909AbgFIUvf (ORCPT ); Tue, 9 Jun 2020 16:51:35 -0400 Received: from Galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7234C05BD1E for ; Tue, 9 Jun 2020 13:51:34 -0700 (PDT) Received: from p5de0bf0b.dip0.t-ipconnect.de ([93.224.191.11] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1jilCt-0001E2-Ga; Tue, 09 Jun 2020 22:50:51 +0200 Received: by nanos.tec.linutronix.de (Postfix, from userid 1000) id E50D510154A; Tue, 9 Jun 2020 22:50:50 +0200 (CEST) From: Thomas Gleixner To: Qian Cai Cc: Peter Zijlstra , LKML , Andy Lutomirski , Andrew Cooper , X86 ML , "Paul E. McKenney" , Alexandre Chartre , Frederic Weisbecker , Paolo Bonzini , Sean Christopherson , Masami Hiramatsu , Petr Mladek , Steven Rostedt , Joel Fernandes , Boris Ostrovsky , Juergen Gross , Brian Gerst , Mathieu Desnoyers , Josh Poimboeuf , Will Deacon , Tom Lendacky , Wei Liu , Michael Kelley , Jason Chen CJ , Zhao Yakui , Alexander Potapenko Subject: Re: [patch V9 10/39] x86/entry: Provide helpers for execute on irqstack In-Reply-To: <87zh9cnfmg.fsf@nanos.tec.linutronix.de> References: <87zh9cnfmg.fsf@nanos.tec.linutronix.de> Date: Tue, 09 Jun 2020 22:50:50 +0200 Message-ID: <87wo4gnetx.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Qian, Thomas Gleixner writes: >> BAD (after oom02) >> # cat /sys/kernel/debug/stackdepot/info >> Unique stacks: 140476 > > That's indeed odd. I try to reproduce and figure out what really breaks > here. I checked your config file and I think I know where this comes from. Can you plase disable KASAN just for testing purposes and compare before after again? Thanks, tglx