Buildresult: powerpc-fixes/x86_64-defconfig/x86_64-gcc4.6 built on Apr 11 2018, 20:50

kisskb

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Status:	OK
Date/Time:	Apr 11 2018, 20:50
Duration:	0:00:51.608733
Builder:	ka4
Revision:	KVM: PPC: Book3S HV: trace_tlbie must not be called in realmode (`19ce7909ed11c49f7eddf59e7f49cd3062bf83d5)`
Target:	powerpc-fixes/x86_64-defconfig/x86_64-gcc4.6
Branch:	powerpc-fixes
Compiler:	x86_64-gcc4.6 (x86_64-linux-gcc (GCC) 4.6.3)
Config:	defconfig (download)
Log:	Download original Possible warnings (15) arch/x86/kernel/e820.c:652:2: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:182:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/apic/io_apic.c:1033:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] kernel/rcu/tree.o: warning: objtool: rcu_init()+0x1c5: unreachable instruction kernel/trace/trace.o: warning: objtool: tracing_start()+0x6f: unreachable instruction mm/vmstat.c:89:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] sound/hda/hdac_regmap.c:282:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2497:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1819:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] drivers/clk/clk.o: warning: objtool: clk_prepare_unlock()+0x44: unreachable instruction drivers/dma-buf/reservation.c:207:2: warning: 'k' may be used uninitialized in this function [-Wuninitialized] fs/aio.o: warning: objtool: aio_nr_sub()+0x2d: unreachable instruction net/mac80211/mlme.c:1352:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5^{commit} 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 already have revision, skipping fetch # git checkout -q -f -B kisskb 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # git clean -qxdf # < git log -1 # commit 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Fri Apr 6 03:56:30 2018 +1000 # # KVM: PPC: Book3S HV: trace_tlbie must not be called in realmode # # This crashes with a "Bad real address for load" attempting to load # from the vmalloc region in realmode (faulting address is in DAR). # # Oops: Bad interrupt in KVM entry/exit code, sig: 6 [#1] # LE SMP NR_CPUS=2048 NUMA PowerNV # CPU: 53 PID: 6582 Comm: qemu-system-ppc Not tainted 4.16.0-01530-g43d1859f0994 # NIP: c0000000000155ac LR: c0000000000c2430 CTR: c000000000015580 # REGS: c000000fff76dd80 TRAP: 0200 Not tainted (4.16.0-01530-g43d1859f0994) # MSR: 9000000000201003 <SF,HV,ME,RI,LE> CR: 48082222 XER: 00000000 # CFAR: 0000000102900ef0 DAR: d00017fffd941a28 DSISR: 00000040 SOFTE: 3 # NIP [c0000000000155ac] perf_trace_tlbie+0x2c/0x1a0 # LR [c0000000000c2430] do_tlbies+0x230/0x2f0 # # I suspect the reason is the per-cpu data is not in the linear chunk. # This could be restored if that was able to be fixed, but for now, # just remove the tracepoints. # # Fixes: 0428491cba92 ("powerpc/mm: Trace tlbie(l) instructions") # Cc: stable@vger.kernel.org # v4.13+ # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < git log --format=%s --max-count=1 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # < make -s -j 40 ARCH=x86 O=/kisskb/build/powerpc-fixes_x86_64_defconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- x86_64_defconfig # make -s -j 40 ARCH=x86 O=/kisskb/build/powerpc-fixes_x86_64_defconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- /kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap': /kisskb/src/arch/x86/kernel/e820.c:652:2: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:182:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq': /kisskb/src/arch/x86/kernel/apic/io_apic.c:1033:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] kernel/rcu/tree.o: warning: objtool: rcu_init()+0x1c5: unreachable instruction kernel/trace/trace.o: warning: objtool: tracing_start()+0x6f: unreachable instruction /kisskb/src/mm/vmstat.c: In function 'sysctl_vm_numa_stat_handler': /kisskb/src/mm/vmstat.c:89:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/hda/hdac_regmap.c: In function 'hda_reg_write': /kisskb/src/sound/hda/hdac_regmap.c:282:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2497:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1819:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] drivers/clk/clk.o: warning: objtool: clk_prepare_unlock()+0x44: unreachable instruction /kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_fence': /kisskb/src/drivers/dma-buf/reservation.c:207:2: warning: 'k' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/dma-buf/reservation.c:160:17: note: 'k' was declared here fs/aio.o: warning: objtool: aio_nr_sub()+0x2d: unreachable instruction /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon': /kisskb/src/net/mac80211/mlme.c:1352:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c:1309:6: note: 'pwr_level_cisco' was declared here Completed OK # rm -rf /kisskb/build/powerpc-fixes_x86_64_defconfig_x86_64 # Build took: 0:00:51.608733

© Michael Ellerman 2006-2018.