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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 67F5AC4345F for ; Thu, 2 May 2024 23:08:41 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=Lb7IPdzU; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4VVqP36l7gz3cVh for ; Fri, 3 May 2024 09:08:39 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=mcgrof@infradead.org; receiver=lists.ozlabs.org) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4VVqMf2Vdvz3cTx for ; Fri, 3 May 2024 09:07:25 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=Ggldfb+SnGyHf9Y0PSAxHLGif2nJQj+Ec7fEJVGb75o=; b=Lb7IPdzUBf5fxuHKvzI9o6uLSf RnddZfhFt7Wuoo+yO08qYqKgdD9hHqwCFkcXYKBIB+4X+0JdnnJtpsqFaMT0wnnv6M9IkA/gRz3dO CfH7Qf8EWypK6L/TUeZ0Du7foM4ykeRc3vnVXR/Q8UVZHuQgHqu0NqfWmBjcCr8SvcyvuW4Mkqc28 xofGGkYwiKsmCUnJHJzx95tE5MA+DQjtoUN9fqejczoSwHyZ+Ikhq12KowJl3pBhgYGyiVQ4bqUvD yp2jYj6J2Re5TMWfN03xgZqm/nkb4xW8EoAJALaAt82gNWBFuA9GWVogzaVAH0hDHMU3YDgdcYW0+ OkmsCkaw==; Received: from mcgrof by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1s2fW5-0000000ECkp-3WzA; Thu, 02 May 2024 23:07:05 +0000 Date: Thu, 2 May 2024 16:07:05 -0700 From: Luis Chamberlain To: Liviu Dudau Subject: Re: [PATCH v7 00/16] mm: jit/text allocator Message-ID: References: <20240429121620.1186447-1-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , x86@kernel.org, Sam Ravnborg , Peter Zijlstra , Catalin Marinas , linux-mips@vger.kernel.org, Song Liu , Donald Dutile , sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, Nadav Amit , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Helge Deller , Huacai Chen , Russell King , linux-trace-kernel@vger.kernel.org, Alexandre Ghiti , Will Deacon , Heiko Carstens , Steven Rostedt , loongarch@lists.linux.dev, Thomas Gleixner , bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Thomas Bogendoerfer , linux-parisc@vger.kernel.org, Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , linux-mm@kvack.org, netdev@v ger.kernel.org, Kent Overstreet , linux-kernel@vger.kernel.org, Dinh Nguyen , =?iso-8859-1?Q?Bj=F6rn_T=F6pel?= , Eric Chanudet , Palmer Dabbelt , Masami Hiramatsu , linux-modules@vger.kernel.org, Andrew Morton , Rick Edgecombe , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , Mike Rapoport Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, May 02, 2024 at 11:50:36PM +0100, Liviu Dudau wrote: > On Mon, Apr 29, 2024 at 09:29:20AM -0700, Luis Chamberlain wrote: > > On Mon, Apr 29, 2024 at 03:16:04PM +0300, Mike Rapoport wrote: > > > From: "Mike Rapoport (IBM)" > > > > > > Hi, > > > > > > The patches are also available in git: > > > https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git/log/?h=execmem/v7 > > > > > > v7 changes: > > > * define MODULE_{VADDR,END} for riscv32 to fix the build and avoid > > > #ifdefs in a function body > > > * add Acks, thanks everybody > > > > Thanks, I've pushed this to modules-next for further exposure / testing. > > Given the status of testing so far with prior revisions, in that only a > > few issues were found and that those were fixed, and the status of > > reviews, this just might be ripe for v6.10. > > Looks like there is still some work needed. I've picked up next-20240501 > and on arch/mips with CONFIG_MODULE_COMPRESS_XZ=y and CONFIG_MODULE_DECOMPRESS=y > I fail to load any module: > > # modprobe rfkill > [11746.539090] Invalid ELF header magic: != ELF > [11746.587149] execmem: unable to allocate memory > modprobe: can't load module rfkill (kernel/net/rfkill/rfkill.ko.xz): Out of memory > > The (hopefully) relevant parts of my .config: Thanks for the report! Any chance we can get you to try a bisection? I think it should take 2-3 test boots. To help reduce scope you try modules-next: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git/log/?h=modules-next Then can you check by resetting your tree to commmit 3fbe6c2f820a76 (mm: introduce execmem_alloc() and execmem_free()"). I suspect that should boot, so your bad commit would be the tip 3c2c250cb3a5fbb ("bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of"). That gives us only a few commits to bisect: git log --oneline 3fbe6c2f820a76bc36d5546bda85832f57c8fce2.. 3c2c250cb3a5 (HEAD -> modules-next, korg/modules-next) bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of 11e8e65cce5c kprobes: remove dependency on CONFIG_MODULES e10cbc38697b powerpc: use CONFIG_EXECMEM instead of CONFIG_MODULES where appropriate 4da3d38f24c5 x86/ftrace: enable dynamic ftrace without CONFIG_MODULES 13ae3d74ee70 arch: make execmem setup available regardless of CONFIG_MODULES 460bbbc70a47 powerpc: extend execmem_params for kprobes allocations e1a14069b5b4 arm64: extend execmem_info for generated code allocations 971e181c6585 riscv: extend execmem_params for generated code allocations 0fa276f26721 mm/execmem, arch: convert remaining overrides of module_alloc to execmem 022cef244287 mm/execmem, arch: convert simple overrides of module_alloc to execmem With 2-3 boots we should be to tell which is the bad commit. Luis