# git rev-parse -q --verify d883c6cf3b39f1f42506e82ad2779fb88004acf3^{commit} d883c6cf3b39f1f42506e82ad2779fb88004acf3 already have revision, skipping fetch # git checkout -q -f -B kisskb d883c6cf3b39f1f42506e82ad2779fb88004acf3 # git clean -qxdf # < git log -1 # commit d883c6cf3b39f1f42506e82ad2779fb88004acf3 # Author: Joonsoo Kim # Date: Wed May 23 10:18:21 2018 +0900 # # Revert "mm/cma: manage the memory of the CMA area by using the ZONE_MOVABLE" # # This reverts the following commits that change CMA design in MM. # # 3d2054ad8c2d ("ARM: CMA: avoid double mapping to the CMA area if CONFIG_HIGHMEM=y") # # 1d47a3ec09b5 ("mm/cma: remove ALLOC_CMA") # # bad8c6c0b114 ("mm/cma: manage the memory of the CMA area by using the ZONE_MOVABLE") # # Ville reported a following error on i386. # # Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) # microcode: microcode updated early to revision 0x4, date = 2013-06-28 # Initializing CPU#0 # Initializing HighMem for node 0 (000377fe:00118000) # Initializing Movable for node 0 (00000001:00118000) # BUG: Bad page state in process swapper pfn:377fe # page:f53effc0 count:0 mapcount:-127 mapping:00000000 index:0x0 # flags: 0x80000000() # raw: 80000000 00000000 00000000 ffffff80 00000000 00000100 00000200 00000001 # page dumped because: nonzero mapcount # Modules linked in: # CPU: 0 PID: 0 Comm: swapper Not tainted 4.17.0-rc5-elk+ #145 # Hardware name: Dell Inc. Latitude E5410/03VXMC, BIOS A15 07/11/2013 # Call Trace: # dump_stack+0x60/0x96 # bad_page+0x9a/0x100 # free_pages_check_bad+0x3f/0x60 # free_pcppages_bulk+0x29d/0x5b0 # free_unref_page_commit+0x84/0xb0 # free_unref_page+0x3e/0x70 # __free_pages+0x1d/0x20 # free_highmem_page+0x19/0x40 # add_highpages_with_active_regions+0xab/0xeb # set_highmem_pages_init+0x66/0x73 # mem_init+0x1b/0x1d7 # start_kernel+0x17a/0x363 # i386_start_kernel+0x95/0x99 # startup_32_smp+0x164/0x168 # # The reason for this error is that the span of MOVABLE_ZONE is extended # to whole node span for future CMA initialization, and, normal memory is # wrongly freed here. I submitted the fix and it seems to work, but, # another problem happened. # # It's so late time to fix the later problem so I decide to reverting the # series. # # Reported-by: Ville Syrjälä # Acked-by: Laura Abbott # Acked-by: Michal Hocko # Cc: Andrew Morton # Signed-off-by: Joonsoo Kim # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 d883c6cf3b39f1f42506e82ad2779fb88004acf3 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_powerpc-allmodconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_powerpc-allmodconfig_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 48 ARCH=powerpc O=/kisskb/build/linus_powerpc-allmodconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /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] /kisskb/src/fs/afs/dynroot.c: In function 'afs_lookup_atcell': /kisskb/src/fs/afs/dynroot.c:126:6: warning: 'len' 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:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset': /kisskb/src/arch/powerpc/include/asm/io-defs.h:12:1: warning: 'px_is' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/ata/ahci_qoriq.c:86:14: note: 'px_is' was declared here /kisskb/src/arch/powerpc/include/asm/io-defs.h:12:1: warning: 'px_cmd' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/ata/ahci_qoriq.c:86:6: note: 'px_cmd' was declared here /kisskb/src/fs/f2fs/file.c: In function 'f2fs_precache_extents': /kisskb/src/fs/f2fs/file.c:2801:6: warning: 'err' 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/fs/btrfs/ref-verify.c: In function 'process_extent_item.isra.0': /kisskb/src/fs/btrfs/ref-verify.c:503:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/btrfs/ref-verify.c: In function 'process_leaf': /kisskb/src/fs/btrfs/ref-verify.c:555:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/swap_state.c: In function '__add_to_swap_cache': /kisskb/src/mm/swap_state.c:135:5: warning: 'error' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2041:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /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:340:21: note: 'pdeo' was declared here /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] /kisskb/src/sound/soc/codecs/arizona.c: In function 'arizona_hw_params': /kisskb/src/sound/soc/codecs/arizona.c:1893:3: warning: 'aif_rx_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/arizona.c:1890:3: warning: 'aif_tx_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info': /kisskb/src/net/bridge/br_netlink.c:577:10: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/da7219-aad.c: In function 'da7219_aad_hptest_work': /kisskb/src/sound/soc/codecs/da7219-aad.c:318:17: warning: 'pll_ctrl' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_replace': /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:210:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/rt5665.c: In function 'rt5665_i2s_pin_event': /kisskb/src/sound/soc/codecs/rt5665.c:2666:33: warning: 'val2' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/rt5665.c:2663:33: warning: 'val1' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c: In function 'amdgpu_set_pp_od_clk_voltage': /kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:414:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_handle_pwr_constr.isra.13': /kisskb/src/net/mac80211/mlme.c:1353:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/input/rmi4/rmi_f11.c: In function 'rmi_f11_finger_handler': /kisskb/src/drivers/input/rmi4/rmi_f11.c:631:3: warning: 'abs_fingers' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c: In function '__arm_v7s_map.constprop.5': /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:433:7: warning: 'cptep' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c: In function 'gk104_top_oneinit': /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:101:1: warning: 'inst' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:101:1: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/nvme/host/lightnvm.c: In function 'nvme_nvm_get_chk_meta': /kisskb/src/drivers/nvme/host/lightnvm.c:624:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1816:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1726:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c: In function 'hclgevf_bind_ring_to_vector': /kisskb/src/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c:609:16: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/wireless/broadcom/b43/phy_n.c: In function 'b43_nphy_rf_ctl_override_rev7': /kisskb/src/drivers/net/wireless/broadcom/b43/phy_n.c:202:21: warning: 'val_addr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/media/usb/dvb-usb/pctv452e.c: In function 'pctv452e_frontend_attach': /kisskb/src/drivers/media/usb/dvb-usb/pctv452e.c:922:2: warning: value computed is not used [-Wunused-value] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'serial_unlink_irq_chain': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/fsl-dpaa2/ethsw/ethsw.c: In function 'port_vlans_add': /kisskb/src/drivers/staging/fsl-dpaa2/ethsw/ethsw.c:720:11: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/fsl-dpaa2/ethsw/ethsw.c: In function 'swdev_port_obj_del': /kisskb/src/drivers/staging/fsl-dpaa2/ethsw/ethsw.c:923:2: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nv50_display.c: In function 'nv50_head_lut_load.isra.8': /kisskb/src/arch/powerpc/include/asm/io.h:176:1: warning: 'b' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nv50_display.c:1805:18: note: 'b' was declared here /kisskb/src/arch/powerpc/include/asm/io.h:176:1: warning: 'g' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nv50_display.c:1805:15: note: 'g' was declared here /kisskb/src/arch/powerpc/include/asm/io.h:176:1: warning: 'r' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nv50_display.c:1805:12: note: 'r' was declared here /kisskb/src/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c: In function 'ibmvscsis_rdma': /kisskb/src/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:3323:18: warning: 'server_ioba' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:3317:18: warning: 'client_ioba' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c: In function 'update_root_ft_create': /kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c:874:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/intel/ice/ice_main.c: In function 'ice_vsi_open': /kisskb/src/drivers/net/ethernet/intel/ice/ice_main.c:4979:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/intel/ice/ice_main.c:4983:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c: In function 'rtl8723a_phy_lc_calibrate': /kisskb/src/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:3481:23: warning: 'rf_amode' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/lustre/lustre/ptlrpc/nrs.c: In function 'ptlrpc_nrs_policy_register.constprop.1': /kisskb/src/include/linux/string.h:266:29: warning: array subscript is above array bounds [-Warray-bounds] WARNING: vmlinux.o(.text+0x377458): Section mismatch in reference from the function .devm_memremap_pages() to the function .meminit.text:.arch_add_memory() The function .devm_memremap_pages() references the function __meminit .arch_add_memory(). This is often because .devm_memremap_pages lacks a __meminit annotation or the annotation of .arch_add_memory is wrong. WARNING: vmlinux.o(.text+0x377ca4): Section mismatch in reference from the function .devm_memremap_pages_release() to the function .meminit.text:.arch_remove_memory() The function .devm_memremap_pages_release() references the function __meminit .arch_remove_memory(). This is often because .devm_memremap_pages_release lacks a __meminit annotation or the annotation of .arch_remove_memory is wrong. WARNING: vmlinux.o(.text+0x4a6e8c): Section mismatch in reference from the function .hmm_devmem_release() to the function .meminit.text:.arch_remove_memory() The function .hmm_devmem_release() references the function __meminit .arch_remove_memory(). This is often because .hmm_devmem_release lacks a __meminit annotation or the annotation of .arch_remove_memory is wrong. WARNING: vmlinux.o(.text+0x4a71a8): Section mismatch in reference from the function .hmm_devmem_pages_create() to the function .meminit.text:.arch_add_memory() The function .hmm_devmem_pages_create() references the function __meminit .arch_add_memory(). This is often because .hmm_devmem_pages_create lacks a __meminit annotation or the annotation of .arch_add_memory is wrong. WARNING: vmlinux.o(.text.unlikely+0x2650): Section mismatch in reference from the function .remove_pmd_table() to the function .meminit.text:.split_kernel_mapping() The function .remove_pmd_table() references the function __meminit .split_kernel_mapping(). This is often because .remove_pmd_table lacks a __meminit annotation or the annotation of .split_kernel_mapping is wrong. WARNING: vmlinux.o(.text.unlikely+0x293c): Section mismatch in reference from the function .remove_pud_table() to the function .meminit.text:.split_kernel_mapping() The function .remove_pud_table() references the function __meminit .split_kernel_mapping(). This is often because .remove_pud_table lacks a __meminit annotation or the annotation of .split_kernel_mapping is wrong. WARNING: drivers/hwmon/ibmpowernv.o(.text+0xa3c): Section mismatch in reference from the function .create_device_attrs() to the function .init.text:.make_sensor_label() The function .create_device_attrs() references the function __init .make_sensor_label(). This is often because .create_device_attrs lacks a __init annotation or the annotation of .make_sensor_label is wrong. /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld: drivers/misc/lkdtm/lkdtm.o: .opd is not a regular array of opd entries Completed OK # rm -rf /kisskb/build/linus_powerpc-allmodconfig_powerpc # Build took: 0:12:50.150644