# 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-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 e3a36ba92d97c153c65c3866ec0e83e4e7de7c86 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc40x_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ppc40x_defconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc40x_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /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/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/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here arch/powerpc/boot/walnut.dtb: Warning (pci_bridge): /plb/pci@ec000000: missing bus-range for PCI bridge arch/powerpc/boot/walnut.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/hotfoot.dtb: Warning (pci_bridge): /plb/pci@ec000000: missing bus-range for PCI bridge arch/powerpc/boot/hotfoot.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/ep405.dtb: Warning (pci_bridge): /plb/pci@ec000000: missing bus-range for PCI bridge arch/powerpc/boot/ep405.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' INFO: Uncompressed kernel (size 0x50572c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x50572c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x50572c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x50572c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x4f50b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x500000) Image Name: Linux-4.17.0-rc3-ge3a36ba Created: Thu May 31 04:36:20 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2535834 Bytes = 2476.40 kB = 2.42 MB Load Address: 00600000 Entry Point: 00601350 Image Name: Linux-4.17.0-rc3-ge3a36ba Created: Thu May 31 04:36:20 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2508913 Bytes = 2450.11 kB = 2.39 MB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.17.0-rc3-ge3a36ba Created: Thu May 31 04:36:20 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2536854 Bytes = 2477.40 kB = 2.42 MB Load Address: 00600000 Entry Point: 00601534 Completed OK # rm -rf /kisskb/build/powerpc-next_ppc40x_defconfig_powerpc # Build took: 0:00:42.158449