# git rev-parse -q --verify c30962d2cf8a994840974d63a83da72d8efcc76d^{commit} c30962d2cf8a994840974d63a83da72d8efcc76d already have revision, skipping fetch # git checkout -q -f -B kisskb c30962d2cf8a994840974d63a83da72d8efcc76d # git clean -qxdf # < git log -1 # commit c30962d2cf8a994840974d63a83da72d8efcc76d # Author: Michael Ellerman # Date: Sat Dec 21 14:16:54 2019 +1100 # # powerpc/mm: Mark get_slice_psize() & slice_addr_is_low() as notrace # # These slice routines are called from the SLB miss handler, which can # lead to warnings from the IRQ code, because we have not reconciled the # IRQ state properly: # # WARNING: CPU: 72 PID: 30150 at arch/powerpc/kernel/irq.c:258 arch_local_irq_restore.part.0+0xcc/0x100 # Modules linked in: # CPU: 72 PID: 30150 Comm: ftracetest Not tainted 5.5.0-rc2-gcc9x-g7e0165b2f1a9 #1 # NIP: c00000000001d83c LR: c00000000029ab90 CTR: c00000000026cf90 # REGS: c0000007eee3b960 TRAP: 0700 Not tainted (5.5.0-rc2-gcc9x-g7e0165b2f1a9) # MSR: 8000000000021033 CR: 22242844 XER: 20000000 # CFAR: c00000000001d780 IRQMASK: 0 # ... # NIP arch_local_irq_restore.part.0+0xcc/0x100 # LR trace_graph_entry+0x270/0x340 # Call Trace: # trace_graph_entry+0x254/0x340 (unreliable) # function_graph_enter+0xe4/0x1a0 # prepare_ftrace_return+0xa0/0x130 # ftrace_graph_caller+0x44/0x94 # (get_slice_psize()) # slb_allocate_user+0x7c/0x100 # do_slb_fault+0xf8/0x300 # instruction_access_slb_common+0x140/0x180 # # Fixes: 48e7b7695745 ("powerpc/64s/hash: Convert SLB miss handlers to C") # 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 c30962d2cf8a994840974d63a83da72d8efcc76d # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc5200_defconfig # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec': /kisskb/src/fs/ext4/extents.c:5054:23: warning: 'ret' 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:338:21: note: 'pdeo' was declared here /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' 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:2591:6: 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:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] INFO: Uncompressed kernel (size 0x6af09c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6af09c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6af09c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x69ea50) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-5.5.0-rc1-gc30962d2cf8a Created: Sun Dec 22 04:48:30 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3372635 Bytes = 3293.59 KiB = 3.22 MiB Load Address: 00700000 Entry Point: 00700278 Image Name: Linux-5.5.0-rc1-gc30962d2cf8a Created: Sun Dec 22 04:48:30 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3342697 Bytes = 3264.35 KiB = 3.19 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.5.0-rc1-gc30962d2cf8a Created: Sun Dec 22 04:48:30 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3372624 Bytes = 3293.58 KiB = 3.22 MiB Load Address: 00700000 Entry Point: 00700278 Image Name: Linux-5.5.0-rc1-gc30962d2cf8a Created: Sun Dec 22 04:48:30 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3372335 Bytes = 3293.30 KiB = 3.22 MiB Load Address: 00700000 Entry Point: 00700278 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.6 # Build took: 0:01:10.149595