# git rev-parse -q --verify a3dcd8bf86ec82ded341a92a7cf5ea7ab16abe62^{commit} a3dcd8bf86ec82ded341a92a7cf5ea7ab16abe62 already have revision, skipping fetch # git checkout -q -f -B kisskb a3dcd8bf86ec82ded341a92a7cf5ea7ab16abe62 # git clean -qxdf # < git log -1 # commit a3dcd8bf86ec82ded341a92a7cf5ea7ab16abe62 # Author: Michael Ellerman # Date: Thu Jan 10 22:57:37 2019 +1100 # # powerpc/64s: Add MMU type to __die() output # # On Power9 machines (64-bit Book3S), we can be running with either the # Hash table or Radix tree MMU enabled. So add some text to the __die() # output to tell us which is enabled, for the case where all you have is # the oops output and no other information. # # Example output: # # kernel BUG at drivers/misc/lkdtm/bugs.c:63! # Oops: Exception in kernel mode, sig: 5 [#1] # LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries # Modules linked in: kvm vmx_crypto binfmt_misc ip_tables x_tables # # Signed-off-by: Michael Ellerman # Reviewed-by: Christophe Leroy # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 a3dcd8bf86ec82ded341a92a7cf5ea7ab16abe62 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0xD125EE3B # 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 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- In file included from /kisskb/src/arch/powerpc/xmon/xmon.c:67:0: /kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_powerpc': /kisskb/src/arch/powerpc/xmon/dis-asm.h:20:2: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat] /kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_spu': /kisskb/src/arch/powerpc/xmon/dis-asm.h:26:2: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/security/apparmor/lsm.c:1602:21: warning: 'apparmor_ipv6_postroute' defined but not used [-Wunused-function] /kisskb/src/kernel/printk/printk.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/char/tpm/tpm-sysfs.c: In function 'pubek_show': /kisskb/src/drivers/char/tpm/tpm-sysfs.c:37:16: warning: 'tpm_buf.data' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/char/tpm/tpm-sysfs.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/arch/powerpc/kernel/iommu.c:149:30: warning: 'fail_iommu_bus_notifier' defined but not used [-Wunused-variable] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:339:21: note: 'pdeo' was declared here /kisskb/src/fs/proc/inode.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/fs/f2fs/node.c: In function '__set_nat_cache_dirty': /kisskb/src/include/linux/list.h:93:12: warning: 'head' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/f2fs/node.c:237:24: note: 'head' was declared here /kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl': /kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/mpi/mpicoder.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/hwspinlock/hwspinlock_core.c: In function 'of_hwspin_lock_get_id': /kisskb/src/drivers/hwspinlock/hwspinlock_core.c:329:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/hwspinlock/hwspinlock_core.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic': /kisskb/src/net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/core/gen_stats.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/clk/clk-si544.c: In function 'si544_recalc_rate': /kisskb/src/drivers/clk/clk-si544.c:251:8: warning: 'settings.fb_div_frac' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/clk/clk-si544.c:268:26: note: 'settings.fb_div_frac' was declared here /kisskb/src/drivers/clk/clk-si544.c:256:9: warning: 'settings.fb_div_int' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/clk/clk-si544.c:268:26: note: 'settings.fb_div_int' was declared here /kisskb/src/drivers/clk/clk-si544.c:247:27: warning: 'settings.hs_div' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/clk/clk-si544.c:268:26: note: 'settings.hs_div' was declared here /kisskb/src/drivers/clk/clk-si544.c:247:27: warning: 'settings.ls_div_bits' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/clk/clk-si544.c:268:26: note: 'settings.ls_div_bits' was declared here /kisskb/src/drivers/clk/clk-si544.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/mm/ksm.c: In function '__stable_node_chain': /kisskb/src/mm/ksm.c:1393:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/ksm.c:1365:6: note: 'found_rmap_hlist_len' was declared here /kisskb/src/fs/f2fs/node.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/net/hsr/hsr_forward.c: In function 'hsr_forward_skb': /kisskb/src/net/hsr/hsr_forward.c:276:24: warning: 'frame.port_rcv' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/hsr/hsr_forward.c:362:24: note: 'frame.port_rcv' was declared here /kisskb/src/net/hsr/hsr_forward.c:151:34: warning: 'frame.sequence_nr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/hsr/hsr_forward.c:362:24: note: 'frame.sequence_nr' was declared here /kisskb/src/net/hsr/hsr_forward.c:195:3: warning: 'frame.skb_hsr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/hsr/hsr_forward.c:362:24: note: 'frame.skb_hsr' was declared here /kisskb/src/net/hsr/hsr_forward.c:112:5: warning: 'frame.is_vlan' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/hsr/hsr_forward.c:362:24: note: 'frame.is_vlan' was declared here /kisskb/src/net/hsr/hsr_forward.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/mm/ksm.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery': /kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker': /kisskb/src/lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c:229:28: note: 'next' was declared here /kisskb/src/lib/rhashtable.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/i2c/i2c-core-base.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/phy/motorola/phy-cpcap-usb.c: In function 'cpcap_usb_detect': /kisskb/src/drivers/phy/motorola/phy-cpcap-usb.c:223:5: warning: 's.id_ground' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/phy/motorola/phy-cpcap-usb.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list': /kisskb/src/net/core/dev.c:3405:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/adc/qcom-spmi-adc5.c: In function 'adc5_read_raw': /kisskb/src/drivers/iio/adc/qcom-spmi-adc5.c:398:7: warning: 'adc_code_volt' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/adc/qcom-spmi-adc5.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/hid/hid-asus.c: In function 'asus_input_configured': /kisskb/src/drivers/hid/hid-asus.c:404:17: warning: 'kbd_func' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/hid/hid-asus.c:390:16: note: 'kbd_func' was declared here /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/udf/unicode.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/hid/hid-asus.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/mfd/tc3589x.c: In function 'tc3589x_probe': /kisskb/src/drivers/mfd/tc3589x.c:390:2: warning: 'version' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/mfd/tc3589x.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/net/core/dev.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/staging/erofs/data.c: In function 'erofs_raw_access_readpages': /kisskb/src/drivers/staging/erofs/data.c:237:18: warning: 'last_block' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/erofs/data.c:378:14: note: 'last_block' was declared here /kisskb/src/drivers/staging/erofs/data.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_bl_ambient_light_level_show': /kisskb/src/drivers/video/backlight/adp8860_bl.c:579:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/uio/uio_fsl_elbc_gpcm.c: In function 'uio_fsl_elbc_gpcm_probe': /kisskb/src/drivers/uio/uio_fsl_elbc_gpcm.c:392:14: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/video/backlight/adp8860_bl.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/uio/uio_fsl_elbc_gpcm.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/iio/temperature/tsys01.c: In function 'tsys01_read_raw': /kisskb/src/drivers/iio/temperature/tsys01.c:94:9: warning: 'temperature' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/temperature/tsys01.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_sideband_msg_build': /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:364:23: warning: 'hdrlen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_check_only': /kisskb/src/drivers/gpu/drm/drm_atomic.c:420:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/drm_atomic.c:399:25: note: 'crtc_state' was declared here /kisskb/src/drivers/gpu/drm/drm_atomic.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/lib/radix-tree.c: In function 'radix_tree_insert': /kisskb/src/lib/radix-tree.c:104:23: warning: 'slot' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/radix-tree.c:729:15: note: 'slot' was declared here /kisskb/src/lib/radix-tree.c:710:7: warning: 'node' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/radix-tree.c:728:26: note: 'node' was declared here /kisskb/src/lib/kobject_uevent.c: In function 'kobject_synth_uevent': /kisskb/src/lib/kobject_uevent.c:222:39: warning: 'env' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/kobject_uevent.c:133:47: warning: 'action_args' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/kobject_uevent.c:196:14: note: 'action_args' was declared here /kisskb/src/lib/kobject_uevent.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/lib/radix-tree.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/media/dvb-frontends/mn88472.c: In function 'mn88472_set_frontend': /kisskb/src/drivers/media/dvb-frontends/mn88472.c:339:27: warning: 'bandwidth_vals_ptr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/media/dvb-frontends/mn88472.c:320:20: warning: 'bandwidth_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/media/dvb-frontends/mn88473.c: In function 'mn88473_set_frontend': /kisskb/src/drivers/media/dvb-frontends/mn88473.c:156:21: warning: 'conf_val_ptr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/media/dvb-frontends/mn88473.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/media/dvb-frontends/mn88472.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] WARNING: vmlinux.o (.PPC.EMB.apuinfo): unexpected non-allocatable section. Did you forget to use "ax"/"aw" in a .S file? Note that for example contains section definitions for use in .S files. INFO: Uncompressed kernel (size 0x2335468) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x2400000) Image Name: Linux-5.0.0-rc2-ga3dcd8bf86ec Created: Tue Jan 15 05:23:13 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 16101483 Bytes = 15724.10 KiB = 15.36 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 # Build took: 0:01:22.396614