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 D030AC433EF for ; Wed, 25 May 2022 19:48:37 +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=BO4DKDXt0FWsHk3/zSfO5lS1Le6pzWDParrwSpkvDG8=; b=MOo5tLlSodC/yy vDe3SpLkRDBfAOsv1lUQr+nDSR0Af5S5Uam7DHvb3F4b5IfgTS87/8cuMuT7m3z94QpF8RYxc4M1H JKZl1KYAFFwMoasHuhMfmonK3ztDUac2JiwVUv+nG7OzC++TvJZQdQfdYGqcugDrq9yPUE+yMZVcB EthSpX046xH9HBUxkmZISAcV9gSN8Hs0ndBEfIQnLLK7YAw9ruoGhcpFJ5yBaTBtf+RHVTsgUUCOm k4kvDXvTEK7KTHKEvDyK39RC9gw9rtUIEcrAkUfpMGO8BtzK5NC+AR3Ix1f4121JXTjPhvrvFvvhj 9ZaeI2cpfrb6xIw/qhug==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ntwyP-00CUfP-1X; Wed, 25 May 2022 19:47:13 +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 1ntwpI-00CQSO-Vq; Wed, 25 May 2022 19:37:50 +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 1ntwp4-0007pS-Ng; Wed, 25 May 2022 21:37:34 +0200 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: Guo Ren Cc: Guenter Roeck , 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 21:37:33 +0200 Message-ID: <1766627.8hzESeGDPO@diego> In-Reply-To: References: <20220322144003.2357128-1-guoren@kernel.org> <3418219.V25eIC5XRa@diego> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220525_123749_071726_2A2DE752 X-CRM114-Status: GOOD ( 34.53 ) 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="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am Mittwoch, 25. Mai 2022, 18:08:22 CEST schrieb Guo Ren: > Thx Heiko & Guenter, > = > On Wed, May 25, 2022 at 7:10 PM Heiko St=FCbner wrote: > > > > Am Mittwoch, 25. Mai 2022, 12:57:30 CEST schrieb Heiko St=FCbner: > > > 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 wron= g. > > > > > > > > > > > > I think the root cause is from musl's implementation with the w= rong > > > > > > 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. > Thx for the report, it's a valuable regression for riscv-compat. > = > > > > > > Also as I said in the other part of the thread, the rootfs seems inno= cent, > > > as my completely-standard Debian riscv64 rootfs is also affected. > > > > > > The merged version seems to be v12 [0] - not sure how we this discuss= ion > > > ended up in v9, but I just tested this revision in two variants: > > > > > > - v5.17 + this v9 -> works nicely > > > > I take that back ... now going back to that build I somehow also run in= to > > that issue here ... will investigate more. > Yeah, it's my fault. I've fixed up it, please have a try: > = > https://lore.kernel.org/linux-riscv/20220525160404.2930984-1-guoren@kerne= l.org/T/#u very cool that you found the issue. I've tested your patch and it seems to fix the issue for me. Thanks for figuring out the cause Heiko > > > - 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@kerne= l.org/ > > > > > > > > > > > > = > = > = _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel