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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 2625DC56202 for ; Wed, 25 Nov 2020 11:23:08 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 8638421534 for ; Wed, 25 Nov 2020 11:23:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="acGIuGJb"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="DLTtjNS3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8638421534 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 EDBA16B0074; Wed, 25 Nov 2020 06:23:06 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E63666B0075; Wed, 25 Nov 2020 06:23:06 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D2C016B007B; Wed, 25 Nov 2020 06:23:06 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0066.hostedemail.com [216.40.44.66]) by kanga.kvack.org (Postfix) with ESMTP id B8A1D6B0074 for ; Wed, 25 Nov 2020 06:23:06 -0500 (EST) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 82839180AD80F for ; Wed, 25 Nov 2020 11:23:06 +0000 (UTC) X-FDA: 77522703972.16.shoes77_360a4fd27376 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin16.hostedemail.com (Postfix) with ESMTP id 60389100E6903 for ; Wed, 25 Nov 2020 11:23:06 +0000 (UTC) X-HE-Tag: shoes77_360a4fd27376 X-Filterd-Recvd-Size: 2920 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by imf27.hostedemail.com (Postfix) with ESMTP for ; Wed, 25 Nov 2020 11:23:05 +0000 (UTC) Date: Wed, 25 Nov 2020 12:23:02 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1606303383; 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=zddgu1xg92Bn0MiOfefrMFIbOQ+hQRLk2ZCm304FhdM=; b=acGIuGJbU7UREvLEeYq30k4lzUJv9UeKuL6qFGncJg4C/V0RZp2uVBBRmIcK+bKofALZv1 E/i+KY42+zjgGgWIhugsxh4pK0+KzhaSx7krPIqWVaI4tBzuG1b0YjzcTWivmnnVgWxTbx su45/uFa1s4kTrwltU9qXYpO2UxbVEVDVku3b9N93c58X1QU5q3xnxSKl++4RbkNi2h2wv 2AzDyIO6MIXYLHTI5ThxytVN4lNv+CMzJeBA55R781I0K/LFybudsUFdcO7SCJ1/O6VI+w wA3laoEwlfSFF4yg44bDycmmLFdclEUeYbHB58QerS0Zt2srzq/8EL336DEcbw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1606303383; 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=zddgu1xg92Bn0MiOfefrMFIbOQ+hQRLk2ZCm304FhdM=; b=DLTtjNS3WiGZoyYE4Mj9Ou1emwbzJ/YRBd8P5jF9pfr7kPbZotaSxP0mB8Yozgu/iZNwBs fq/R9KQKzyCNkKAw== From: Sebastian Andrzej Siewior To: Matthew Wilcox Cc: Naresh Kamboju , open list , Linux-Next Mailing List , linux-mm , lkft-triage@lists.linaro.org, LTP List , Andrew Morton , torvalds@linuxfoundation.org, Yang Shi , Jan Kara , Michal Hocko , Thomas Gleixner , Mel Gorman , Song Liu , Zi Yan , vtolkm@googlemail.com, Marek Szyprowski , Arnd Bergmann Subject: Re: kernel BUG at mm/highmem.c:417! invalid opcode: 0000 EIP: zero_user_segments Message-ID: <20201125112302.zh6x3hq7wyzqoz66@linutronix.de> References: <20201124171628.dk6tle5lh3sx2jxg@linutronix.de> <20201125004632.GG4327@casper.infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20201125004632.GG4327@casper.infradead.org> 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 2020-11-25 00:46:32 [+0000], Matthew Wilcox wrote: > > Thanks for debugging this! I didn't realise start1 was allowed to be > less than start2. Try this ... (systemd is sabotaging my efforts to > test an i386 kernel) You are welcome. Reviewed-by: Sebastian Andrzej Siewior Sebastian