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=-3.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 14CC7C433E0 for ; Thu, 25 Feb 2021 03:45:04 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 814AF64EC4 for ; Thu, 25 Feb 2021 03:45:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 814AF64EC4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=m5p.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.89581.168832 (Exim 4.92) (envelope-from ) id 1lF7a5-0007rf-An; Thu, 25 Feb 2021 03:44:49 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 89581.168832; Thu, 25 Feb 2021 03:44:49 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lF7a5-0007rY-70; Thu, 25 Feb 2021 03:44:49 +0000 Received: by outflank-mailman (input) for mailman id 89581; Thu, 25 Feb 2021 03:44:47 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lF7a3-0007rT-Rb for xen-devel@lists.xenproject.org; Thu, 25 Feb 2021 03:44:47 +0000 Received: from mailhost.m5p.com (unknown [74.104.188.4]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id a5535efb-b9c4-46f0-99e8-79e54643f33f; Thu, 25 Feb 2021 03:44:46 +0000 (UTC) Received: from m5p.com (mailhost.m5p.com [IPv6:2001:470:1f07:15ff:0:0:0:f7]) by mailhost.m5p.com (8.16.1/8.15.2) with ESMTPS id 11P3iU8M056842 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Wed, 24 Feb 2021 22:44:36 -0500 (EST) (envelope-from ehem@m5p.com) Received: (from ehem@localhost) by m5p.com (8.16.1/8.15.2/Submit) id 11P3iT24056841; Wed, 24 Feb 2021 19:44:29 -0800 (PST) (envelope-from ehem) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: a5535efb-b9c4-46f0-99e8-79e54643f33f Date: Wed, 24 Feb 2021 19:44:29 -0800 From: Elliott Mitchell To: Roman Shaposhnik Cc: J??rgen Gro?? , Stefano Stabellini , Xen-devel , Jan Beulich , Andrew Cooper , Roger Pau Monn?? , Wei Liu , George Dunlap Subject: Re: Linux DomU freezes and dies under heavy memory shuffling Message-ID: References: <45b8ef4c-6d36-e91b-ca1a-a82eeca5aaf5@suse.com> <49344e8d-5518-68c6-a417-68522a915e72@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Feb 24, 2021 at 07:06:25PM -0800, Roman Shaposhnik wrote: > I'm slightly confused about this patch -- it seems to me that it needs > to be applied to the guest kernel, correct? > > If that's the case -- the challenge I have is that I need to re-build > the Canonical (Ubuntu) distro kernel with this patch -- this seems > a bit daunting at first (I mean -- I'm pretty good at rebuilding kernels > I just never do it with the vendor ones ;-)). > > So... if there's anyone here who has any suggestions on how to do that > -- I'd appreciate pointers. Generally Debian-derivatives ship the kernel source they use as packages named "linux-source-." (guessing you need linux-source-5.4?). They ship their configurations as packages "linux-config-.", but they also ship their configuration with their kernels as /boot/config-. If you're trying to create a proper packaged kernel, the Linux kernel Make target "bindeb-pkg" will create an appropriate .deb file. If you wish to extract a Debian package, they're some tarballs and a marker file wrapped in a ar archive. You're likely interested in control.tar.?z* and data.tar.?z*. Older packages used gzip-format (.tar.gz), newer packages use xz-format (.tar.xz). If you want to extract current Ubuntu kernel source on a different distribution (or even an unrelated flavor of Unix), likely you would want `ar p linux-source-5.4.deb data.tar.xz | unxz -c | tar -xf -`. -- (\___(\___(\______ --=> 8-) EHM <=-- ______/)___/)___/) \BS ( | ehem+sigmsg@m5p.com PGP 87145445 | ) / \_CS\ | _____ -O #include O- _____ | / _/ 8A19\___\_|_/58D2 7E3D DDF4 7BA6 <-PGP-> 41D1 B375 37D0 8714\_|_/___/5445