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[209.85.220.65]) by mx.google.com with SMTPS id n24sor8251701qvd.2.2019.07.05.09.32.10 for (Google Transport Security); Fri, 05 Jul 2019 09:32:10 -0700 (PDT) Received-SPF: pass (google.com: domain of arndbergmann@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; spf=pass (google.com: domain of arndbergmann@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=arndbergmann@gmail.com X-Google-Smtp-Source: APXvYqzbKktKqp9uhoV9vXQtX+yr4qrddqZeixUg0JHk9T9z0CkBpogcwCP2RGTyS+kBPHd4G/z9oTTSySyNO6hkDOg= X-Received: by 2002:a0c:e952:: with SMTP id n18mr3948664qvo.63.1562344329835; Fri, 05 Jul 2019 09:32:09 -0700 (PDT) MIME-Version: 1.0 References: <201907060045.bQY0GTP0%lkp@intel.com> <20190705161529.GA8626@kroah.com> In-Reply-To: <20190705161529.GA8626@kroah.com> From: Arnd Bergmann Date: Fri, 5 Jul 2019 18:31:51 +0200 Message-ID: Subject: Re: [linux-stable-rc:linux-4.9.y 9986/9999] ptrace.c:undefined reference to `abort' To: Greg Kroah-Hartman Cc: kbuild test robot , kbuild-all@01.org, Andrew Morton , Linux Memory Management List , Sasha Levin Content-Type: text/plain; charset="UTF-8" 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 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") dbbb08f500d6 ("arm64, vdso: Define vdso_{start,end} as array") The arc unwind fix needs to make it into mainline first, and the rest are mips issues that may need a custom fix since there is no specific upstream patch that could be backported. Arnd