Buildresult: powerpc-fixes/powerpc-randconfig/powerpc-gcc4.6 built on Apr 24 2018, 10:14

kisskb

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Status:	Failed
Date/Time:	Apr 24 2018, 10:14
Duration:	0:00:40.351646
Builder:	ka1
Revision:	powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range (`d0cf9b561ca97d5245bb9e0c4774b7fadd897d67)`
Target:	powerpc-fixes/powerpc-randconfig/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3)
Config:	randconfig (download)
Log:	Download original Possible errors arch/powerpc/mm/tlb-radix.c:102:2: error: impossible constraint in 'asm' make[2]: * [arch/powerpc/mm/tlb-radix.o] Error 1 make[1]: * [arch/powerpc/mm] Error 2 make: * [sub-make] Error 2 Possible warnings (71) WARNING: unmet direct dependencies detected for PCI_MSI WARNING: unmet direct dependencies detected for PPC4xx_PCI_EXPRESS WARNING: unmet direct dependencies detected for PPC4xx_MSI arch/powerpc/sysdev/xive/common.c:181:2: warning: 'prio' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] arch/powerpc/sysdev/xive/spapr.c:255:16: warning: 'read_data' may be used uninitialized in this function [-Wuninitialized] arch/powerpc/sysdev/xive/spapr.c:366:14: warning: 'esn_page' may be used uninitialized in this function [-Wuninitialized] arch/powerpc/sysdev/xive/spapr.c:293:18: warning: 'esb_shift' may be used uninitialized in this function [-Wuninitialized] arch/powerpc/sysdev/xive/spapr.c:294:18: warning: 'trig_page' may be used uninitialized in this function [-Wuninitialized] arch/powerpc/sysdev/xive/spapr.c:302:26: warning: 'eoi_page' may be used uninitialized in this function [-Wuninitialized] arch/powerpc/sysdev/xive/spapr.c:288:2: warning: 'flags' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] arch/powerpc/mm/tlb-radix.c:102:2: warning: asm operand 3 probably doesn't match constraints [enabled by default] arch/powerpc/kernel/cacheinfo.c:549:16: warning: 'size_kb' may be used uninitialized in this function [-Wuninitialized] arch/powerpc/platforms/pseries/pci.c:309:2: warning: 'rc' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] kernel/cgroup/cgroup-v1.c:1257:9: warning: 'root' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] arch/powerpc/platforms/powernv/pci-ioda.c:1213:22: warning: 'pe' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:220:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:220:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] kernel/futex_compat.c:117:21: warning: 'pip' may be used uninitialized in this function [-Wuninitialized] kernel/futex_compat.c:114:2: warning: 'pending' may be used uninitialized in this function [-Wuninitialized] kernel/futex_compat.c:95:3: warning: 'entry' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] kernel/futex.c:1604:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] kernel/futex.c:3493:21: warning: 'pip' may be used uninitialized in this function [-Wuninitialized] kernel/futex.c:3492:2: warning: 'pending' may be used uninitialized in this function [-Wuninitialized] kernel/futex.c:3475:3: warning: 'entry' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] kernel/kprobes.c:272:24: warning: 'idx' may be used uninitialized in this function [-Wuninitialized] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] Full Log # git rev-parse -q --verify d0cf9b561ca97d5245bb9e0c4774b7fadd897d67^{commit} d0cf9b561ca97d5245bb9e0c4774b7fadd897d67 already have revision, skipping fetch # git checkout -q -f -B kisskb d0cf9b561ca97d5245bb9e0c4774b7fadd897d67 # git clean -qxdf # < git log -1 # commit d0cf9b561ca97d5245bb9e0c4774b7fadd897d67 # Author: Alistair Popple <alistair@popple.id.au> # Date: Tue Apr 17 19:11:28 2018 +1000 # # powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range # # The NPU has a limited number of address translation shootdown (ATSD) # registers and the GPU has limited bandwidth to process ATSDs. This can # result in contention of ATSD registers leading to soft lockups on some # threads, particularly when invalidating a large address range in # pnv_npu2_mn_invalidate_range(). # # At some threshold it becomes more efficient to flush the entire GPU # TLB for the given MM context (PID) than individually flushing each # address in the range. This patch will result in ranges greater than # 2MB being converted from 32+ ATSDs into a single ATSD which will flush # the TLB for the given PID on each GPU. # # Fixes: 1ab66d1fbada ("powerpc/powernv: Introduce address translation services for Nvlink2") # Cc: stable@vger.kernel.org # v4.12+ # Signed-off-by: Alistair Popple <alistair@popple.id.au> # Acked-by: Balbir Singh <bsingharora@gmail.com> # Tested-by: Balbir Singh <bsingharora@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 d0cf9b561ca97d5245bb9e0c4774b7fadd897d67 # < make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0xD273B278 WARNING: unmet direct dependencies detected for PCI_MSI Depends on [n]: PCI [=n] Selected by [y]: - KILAUEA [=y] && 40x [=y] WARNING: unmet direct dependencies detected for PPC4xx_PCI_EXPRESS Depends on [n]: PCI [=n] && 4xx [=y] Selected by [y]: - KILAUEA [=y] && 40x [=y] WARNING: unmet direct dependencies detected for PPC4xx_MSI Depends on [n]: PCI_MSI [=y] && PCI [=n] && 4xx [=y] Selected by [y]: - KILAUEA [=y] && 40x [=y] # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig # yes \n \| make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe yes: write error # make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/arch/powerpc/sysdev/xive/common.c: In function 'xive_scan_interrupts': /kisskb/src/arch/powerpc/sysdev/xive/common.c:181:2: warning: 'prio' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/sysdev/xive/common.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/arch/powerpc/sysdev/xive/spapr.c: In function 'xive_spapr_esb_rw': /kisskb/src/arch/powerpc/sysdev/xive/spapr.c:255:16: warning: 'read_data' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/sysdev/xive/spapr.c: In function 'xive_spapr_configure_queue': /kisskb/src/arch/powerpc/sysdev/xive/spapr.c:366:14: warning: 'esn_page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/sysdev/xive/spapr.c: In function 'xive_spapr_populate_irq_data': /kisskb/src/arch/powerpc/sysdev/xive/spapr.c:293:18: warning: 'esb_shift' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/sysdev/xive/spapr.c:294:18: warning: 'trig_page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/sysdev/xive/spapr.c:302:26: warning: 'eoi_page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/sysdev/xive/spapr.c:288:2: warning: 'flags' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/sysdev/xive/spapr.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/arch/powerpc/mm/tlb-radix.c: In function 'radix__flush_tlb_range_psize': /kisskb/src/arch/powerpc/mm/tlb-radix.c:102:2: warning: asm operand 3 probably doesn't match constraints [enabled by default] /kisskb/src/arch/powerpc/mm/tlb-radix.c:102:2: error: impossible constraint in 'asm' /kisskb/src/arch/powerpc/kernel/cacheinfo.c: In function 'size_show': /kisskb/src/arch/powerpc/kernel/cacheinfo.c:549:16: warning: 'size_kb' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/platforms/pseries/pci.c: In function 'pseries_root_bridge_prepare': /kisskb/src/arch/powerpc/platforms/pseries/pci.c:309:2: warning: 'rc' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/mm/tlb-radix.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/scripts/Makefile.build:312: recipe for target 'arch/powerpc/mm/tlb-radix.o' failed make[2]: * [arch/powerpc/mm/tlb-radix.o] Error 1 make[2]: * Waiting for unfinished jobs.... /kisskb/src/arch/powerpc/platforms/pseries/pci.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/arch/powerpc/kernel/cacheinfo.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_get_live': /kisskb/src/include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:178:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_tryget_css': /kisskb/src/include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:248:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'init_and_link_css': /kisskb/src/include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:178:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'kill_css': /kisskb/src/include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:178:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'css_killed_work_fn': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_kill_sb': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/Makefile:1060: recipe for target 'arch/powerpc/mm' failed make[1]: * [arch/powerpc/mm] Error 2 make[1]: * Waiting for unfinished jobs.... /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_extra_stat_show.constprop.24': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_get_e_css': /kisskb/src/include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:178:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:248:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1257:9: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:248:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:248:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'put_css_set_locked': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'find_css_set': /kisskb/src/include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:178:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup-v1.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_kn_unlock': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_do_mount': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/arch/powerpc/platforms/powernv/pci-ioda.c: In function 'pnv_ioda_setup_npu_PE': /kisskb/src/arch/powerpc/platforms/powernv/pci-ioda.c:1213:22: warning: 'pe' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_lock_and_drain_offline': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'css_free_rwork_fn': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_kn_lock_live': /kisskb/src/include/linux/percpu-refcount.h:220:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:214:26: note: 'percpu_count' was declared here /kisskb/src/arch/powerpc/platforms/powernv/pci-ioda.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/cgroup/cgroup.c: In function 'css_tryget_online_from_dir': /kisskb/src/include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:248:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_get_from_fd': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_sk_alloc': /kisskb/src/include/linux/percpu-refcount.h:220:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:214:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:183:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:178:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: In function 'cgroup_sk_free': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/cgroup.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/cgroup/freezer.c: In function 'freezer_read': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:248:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/freezer.c: In function 'freezer_change_state': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:248:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/freezer.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/cgroup/rdma.c: In function 'rdmacg_uncharge_hierarchy': /kisskb/src/include/linux/percpu-refcount.h:282:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:277:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/rdma.c: In function 'rdmacg_try_charge': /kisskb/src/include/linux/percpu-refcount.h:254:1: warning: 'percpu_count' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/include/linux/percpu-refcount.h:248:26: note: 'percpu_count' was declared here /kisskb/src/kernel/cgroup/rdma.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/futex_compat.c: In function 'compat_exit_robust_list': /kisskb/src/kernel/futex_compat.c:117:21: warning: 'pip' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex_compat.c:114:2: warning: 'pending' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex_compat.c:95:3: warning: 'entry' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex_compat.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/futex.c: In function 'futex_atomic_op_inuser': /kisskb/src/kernel/futex.c:1604:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c: In function 'exit_robust_list': /kisskb/src/kernel/futex.c:3493:21: warning: 'pip' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c:3492:2: warning: 'pending' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c:3475:3: warning: 'entry' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/kernel/kprobes.c: In function '__free_insn_slot': /kisskb/src/kernel/kprobes.c:272:24: warning: 'idx' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/kprobes.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] Makefile:146: recipe for target 'sub-make' failed make: * [sub-make] Error 2 Command 'make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc # Build took: 0:00:40.351646

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