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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 A1BF2C433F5 for ; Wed, 25 May 2022 10:59:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9BJvFd40Zov7hnd44NesMlGLmNAR9sC5apiSMQauVFo=; b=x5IqWsaQdzrKbL UjuaduK1CDbQvzlKvAqnBGa1igyPInJ8zCjPDN+BSi2UA4FSbvRH61xndt4T8U++pWkosKEpI+UEn mQeJBxal0G40qTY4BfvuiOREz/U/AcNewd34Rh6QOdj4U8Cy5xxh1bkGsyeIfvyTGHY/PtGyT614B CTGUFbEVR5Cm7wuAT6A0PkYTLIjW1J6My2uVyJ/d5//JYTqQd3ju321GXZSWAENZXe0qI4MjjvYSl lTEj1t6xc7fUA3DJQ/QxpyEUN/+oDfiT5wwFJYPwdFfTaDFSueozgxmsnqzro+I9CalVpTjp5GwDD 6S8Xjb0ZNGvbMqVd9i+g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ntoiJ-00AmyF-Rj; Wed, 25 May 2022 10:58:03 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ntoiE-00AmvA-6o; Wed, 25 May 2022 10:57:59 +0000 Received: from ip5b412258.dynamic.kabel-deutschland.de ([91.65.34.88] helo=diego.localnet) by gloria.sntech.de with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ntohn-0005Jh-KS; Wed, 25 May 2022 12:57:31 +0200 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: Guo Ren , Guenter Roeck Cc: Palmer Dabbelt , Arnd Bergmann , Greg Kroah-Hartman , Christoph Hellwig , linux-arch , Linux Kernel Mailing List , linux-riscv , linux-csky@vger.kernel.org, linux-s390 , sparclinux , linuxppc-dev , Parisc List , "open list:BROADCOM NVRAM DRIVER" , Linux ARM , the arch/x86 maintainers , Guo Ren Subject: Re: [PATCH V9 20/20] riscv: compat: Add COMPAT Kbuild skeletal support Date: Wed, 25 May 2022 12:57:30 +0200 Message-ID: <6435704.4vTCxPXJkl@diego> In-Reply-To: <20220524220646.GA3990738@roeck-us.net> References: <20220322144003.2357128-1-guoren@kernel.org> <20220524220646.GA3990738@roeck-us.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220525_035758_309921_987ADE50 X-CRM114-Status: GOOD ( 24.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am Mittwoch, 25. Mai 2022, 00:06:46 CEST schrieb Guenter Roeck: > On Wed, May 25, 2022 at 01:46:38AM +0800, Guo Ren wrote: > [ ... ] > > > > The problem is come from "__dls3's vdso decode part in musl's > > > ldso/dynlink.c". The ehdr->e_phnum & ehdr->e_phentsize are wrong. > > > > > > I think the root cause is from musl's implementation with the wrong > > > elf parser. I would fix that soon. > > Not elf parser, it's "aux vector just past environ[]". I think I could > > solve this, but anyone who could help dig in is welcome. > > > > I am not sure I understand what you are saying here. Point is that my > root file system, generated with musl a year or so ago, crashes with > your patch set applied. That is a regression, even if there is a bug > in musl. Also as I said in the other part of the thread, the rootfs seems innocent, as my completely-standard Debian riscv64 rootfs is also affected. The merged version seems to be v12 [0] - not sure how we this discussion ended up in v9, but I just tested this revision in two variants: - v5.17 + this v9 -> works nicely - v5.18-rc6 + this v9 (rebased onto it) -> breaks the boot The only rebase-conflict was with the introduction of restartable sequences and removal of the tracehook include, but turning CONFIG_RSEQ off doesn't seem to affect the breakage. So it looks like something changed between 5.17 and 5.18 that causes the issue. Heiko [0] https://lore.kernel.org/all/20220405071314.3225832-1-guoren@kernel.org/ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel