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[198.145.29.99]) by mx.google.com with ESMTPS id 61si6785380plb.270.2019.07.05.11.24.24 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 05 Jul 2019 11:24:24 -0700 (PDT) Received-SPF: pass (google.com: domain of gregkh@linuxfoundation.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=cPIYeeEq; spf=pass (google.com: domain of gregkh@linuxfoundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BEBC52089C; Fri, 5 Jul 2019 18:24:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562351064; bh=2y0OFtHQOET0VSSyMlafprvdUrczPn42OquPh94gazY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=cPIYeeEq68ZR0SvrkoClo7jjXiBainG0h8LzwsHE1pywPJr6yjQewgs27SsSL2d6l 7kqiLG4RXOKlpiG4CYh/2EWmdrS8TPatebz7l3GLh86L9xHzcqjnm9a2RZ1XDVOAh+ NVBNsJMkfCbI3mS7spA3Kl9M2axXj3Ng7rI729b4= Date: Fri, 5 Jul 2019 20:24:20 +0200 From: Greg Kroah-Hartman To: Arnd Bergmann Cc: kbuild test robot , kbuild-all@01.org, Andrew Morton , Linux Memory Management List , Sasha Levin Subject: Re: [linux-stable-rc:linux-4.9.y 9986/9999] ptrace.c:undefined reference to `abort' Message-ID: <20190705182420.GA16461@kroah.com> References: <201907060045.bQY0GTP0%lkp@intel.com> <20190705161529.GA8626@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) 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 Fri, Jul 05, 2019 at 06:31:51PM +0200, Arnd Bergmann wrote: > On Fri, Jul 5, 2019 at 6:15 PM Greg Kroah-Hartman > wrote: > > On Sat, Jul 06, 2019 at 12:08:59AM +0800, kbuild test robot wrote: > > > arch/arc/built-in.o: In function `arc_pmu_device_probe': > > > >> perf_event.c:(.text+0x99e6): undefined reference to `abort' > > > arch/arc/built-in.o:perf_event.c:(.text+0x99e6): more undefined references to `abort' follow > > > > I've queued up af1be2e21203 ("ARC: handle gcc generated __builtin_trap > > for older compiler") to hopefully resolve this now. > > Thanks, I remember the same problem happening in mainline now, > and this should solve the issue. > > I also see that the backported patch that introduced the regression > has succeed in getting rid of many of the warnings in 4.9.y, and kernelci > itself does not run into the abort() issue because it has a different > compiler version: > > https://kernelci.org/build/stable-rc/branch/linux-4.9.y/kernel/v4.9.184-93-gaf13e6db0db4/ > > All that remains now is > > cc1: error: '-march=r3000' requires '-mfp32' > (.text+0x1bf20): undefined reference to `iommu_is_span_boundary' > (.text+0x1bbd0): undefined reference to `iommu_is_span_boundary' > warning: (SIBYTE_SWARM && SIBYTE_SENTOSA && SIBYTE_BIGSUR && > SWIOTLB_XEN && AMD_IOMMU) selects SWIOTLB which has unmet direct > dependencies (CAVIUM_OCTEON_SOC || MACH_LOONGSON64 && CPU_LOONGSON3 || > NLM_XLP_BOARD || NLM_XLR_BOARD) > arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but > not used [-Wunused-function] > drivers/clk/sunxi/clk-sun8i-bus-gates.c:85:27: warning: 'clk_parent' > may be used uninitialized in this function [-Wmaybe-uninitialized] > arch/arm64/kernel/vdso.c:127:6: warning: 'memcmp' reading 4 bytes from > a region of size 1 [-Wstringop-overflow=] > > The two arm specific issues are fixed with these patches > > 4e903450bcb9 ("clk: sunxi: fix uninitialized access") That applies. > dbbb08f500d6 ("arm64, vdso: Define vdso_{start,end} as array") That one does not :( Care to backport it? :) Now we can start tackling the gcc9 issues... :( thanks, greg k-h