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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 E13F0C433B4 for ; Wed, 19 May 2021 18:51:00 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7EE4B6135C for ; Wed, 19 May 2021 18:51:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7EE4B6135C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id CD6456B0036; Wed, 19 May 2021 14:50:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C86816B006E; Wed, 19 May 2021 14:50:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B4E246B0070; Wed, 19 May 2021 14:50:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0182.hostedemail.com [216.40.44.182]) by kanga.kvack.org (Postfix) with ESMTP id 832B06B0036 for ; Wed, 19 May 2021 14:50:59 -0400 (EDT) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 25AD1824999B for ; Wed, 19 May 2021 18:50:59 +0000 (UTC) X-FDA: 78158872638.16.4A54491 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by imf23.hostedemail.com (Postfix) with ESMTP id 95F41A0003AB for ; Wed, 19 May 2021 18:50:57 +0000 (UTC) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1621450255; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=lUTVG8VyrUcHvmUcBxQfqFIS0oALFRRk5yLDi+fJo4U=; b=wX54cv72Ru7c4qiXwOgz990ogaxqIwydkzTE4tpMevL/kQLDJbUlSgEBonedbaPHG3qJwL eYusMvFI3O5iQajfwGbK/P19Ncox55BsAUHLemrMIrQ8aro0jVhZxn3syZ8/TLx7AxWMMZ acZYQJC0V8hQwbuRsSsXX7NgRyRLRqsj2N8nIfecdq9EWuWwhXcbTxJhGjqK7FsYJ0ozoo sie/i0jFMG2mX7C2T18wYFKlVN8On+xHU6wsgIup7PkZEjyI4vGrV1KZx+8OT4pMtEjxBN PisBxkF+siV+X6+FqUomGptVJ4EnuigZvEVadnKCXvdPLuXdqBfh0LaSec9ISQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1621450255; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=lUTVG8VyrUcHvmUcBxQfqFIS0oALFRRk5yLDi+fJo4U=; b=4aIRcmXvFRDRIztIT9ErXJa9sGnChVf4ioMCtp2SU4Fs5a7nO3g5vO3AodBOg6fvmQdJ3T EO/cHEzERhxn79DQ== To: Naresh Kamboju , Cc: LKML , linux-mm , lkft-triage@lists.linaro.org, Andrew Morton , Ira Weiny , Oliver Sang , Chaitanya Kulkarni ,x86@kernel.org,Kalesh Singh Subject: Re: BUG: unable to handle page fault for address - EIP: __kmap_local_page_prot In-Reply-To: References: Date: Wed, 19 May 2021 20:50:54 +0200 Message-ID: <87mtsqd0c1.ffs@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: 95F41A0003AB Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=linutronix.de header.s=2020 header.b=wX54cv72; dkim=pass header.d=linutronix.de header.s=2020e header.b=4aIRcmXv; dmarc=pass (policy=none) header.from=linutronix.de; spf=pass (imf23.hostedemail.com: domain of tglx@linutronix.de designates 193.142.43.55 as permitted sender) smtp.mailfrom=tglx@linutronix.de X-Rspamd-Server: rspam03 X-Stat-Signature: pfg1gw66o6qbjc4yqh7cywz7qcffqrum X-HE-Tag: 1621450257-151452 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, May 19 2021 at 20:38, Naresh Kamboju wrote: > While running LTP mm test suite on i386 kernel the following warning and BUG > reported on linux next 5.13.0-rc2-next-20210519. > > The warning is not regression, We have been noticing these warnings often on > i386 Noticing? Did you report them? > but kernel BUG: looks to be a new crash. It's just the consequence of the problem which is pointed out by the warning. Fix below. Thanks, tglx --- Subject: x86: Don't enable CONFIG_MOVE_PUD for 32bit and !PAE From: Thomas Gleixner Date: Wed, 19 May 2021 20:37:34 +0200 MOVE_PUD cannot work for 2-level paging obviously. Fixes: be37c98d1134 ("x86: mremap speedup - Enable HAVE_MOVE_PUD") Signed-off-by: Thomas Gleixner Cc: Kalesh Singh Cc: stable@vger.kernel.org --- arch/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -219,7 +219,7 @@ config X86 select HAVE_MIXED_BREAKPOINTS_REGS select HAVE_MOD_ARCH_SPECIFIC select HAVE_MOVE_PMD - select HAVE_MOVE_PUD + select HAVE_MOVE_PUD if PGTABLE_LEVELS > 2 select HAVE_NMI select HAVE_OPTPROBES select HAVE_PCSPKR_PLATFORM