# git rev-parse -q --verify e3a36ba92d97c153c65c3866ec0e83e4e7de7c86^{commit} e3a36ba92d97c153c65c3866ec0e83e4e7de7c86 already have revision, skipping fetch # git checkout -q -f -B kisskb e3a36ba92d97c153c65c3866ec0e83e4e7de7c86 # git clean -qxdf # < git log -1 # commit e3a36ba92d97c153c65c3866ec0e83e4e7de7c86 # Author: Aneesh Kumar K.V # Date: Wed May 30 18:02:25 2018 +0530 # # powerpc/mm: Fix kernel crash on page table free # # Fix the below crash on Book3E 64. pgtable_page_dtor expects struct # page *arg. # # Also call the destructor on non book3s platforms correctly. This frees # up the split PTL locks correctly if we had allocated them before. # # Call Trace: # .kmem_cache_free+0x9c/0x44c (unreliable) # .ptlock_free+0x1c/0x30 # .tlb_remove_table+0xdc/0x224 # .free_pgd_range+0x298/0x500 # .shift_arg_pages+0x10c/0x1e0 # .setup_arg_pages+0x200/0x25c # .load_elf_binary+0x450/0x16c8 # .search_binary_handler.part.11+0x9c/0x248 # .do_execveat_common.isra.13+0x868/0xc18 # .run_init_process+0x34/0x4c # .try_to_run_init_process+0x1c/0x68 # .kernel_init+0xdc/0x130 # .ret_from_kernel_thread+0x58/0x7c # # Fixes: 702346768 ("powerpc/mm/nohash: Remove pte fragment dependency from nohash") # Signed-off-by: Aneesh Kumar K.V # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 e3a36ba92d97c153c65c3866ec0e83e4e7de7c86 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+64K_PAGES_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_PPC_4K_PAGES=n # Added to kconfig CONFIG_PPC_64K_PAGES=y # yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+64K_PAGES_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- oldconfig yes: standard output: Broken pipe yes: write error # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+64K_PAGES_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/sound/aoa/codecs/onyx.c: In function 'onyx_snd_single_bit_get': /kisskb/src/sound/aoa/codecs/onyx.c:380:37: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity; ^ In file included from /kisskb/src/include/linux/io.h:25:0, from /kisskb/src/include/linux/of_address.h:7, from /kisskb/src/drivers/ata/ahci_qoriq.c:18: /kisskb/src/drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset': /kisskb/src/arch/powerpc/include/asm/io.h:633:3: warning: 'px_is' may be used uninitialized in this function [-Wmaybe-uninitialized] ppc_pci_io.name al; \ ^ /kisskb/src/drivers/ata/ahci_qoriq.c:86:14: note: 'px_is' was declared here u32 px_cmd, px_is, px_val; ^ In file included from /kisskb/src/include/linux/io.h:25:0, from /kisskb/src/include/linux/of_address.h:7, from /kisskb/src/drivers/ata/ahci_qoriq.c:18: /kisskb/src/arch/powerpc/include/asm/io.h:142:2: warning: 'px_cmd' may be used uninitialized in this function [-Wmaybe-uninitialized] __asm__ __volatile__("sync;"#insn" %1,%y0" \ ^ /kisskb/src/drivers/ata/ahci_qoriq.c:86:6: note: 'px_cmd' was declared here u32 px_cmd, px_is, px_val; ^ WARNING: vmlinux.o(.text+0x38056c): 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+0x380e58): 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+0x4b5aac): 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+0x4b5e10): 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. Completed OK # rm -rf /kisskb/build/powerpc-next_allmodconfig+64K_PAGES_powerpc-5.3 # Build took: 0:13:44.770688