# git rev-parse -q --verify d4bf905307a1c90a27714ff7a9fd29b0a2ceed98^{commit} d4bf905307a1c90a27714ff7a9fd29b0a2ceed98 already have revision, skipping fetch # git checkout -q -f -B kisskb d4bf905307a1c90a27714ff7a9fd29b0a2ceed98 # git clean -qxdf # < git log -1 # commit d4bf905307a1c90a27714ff7a9fd29b0a2ceed98 # Author: Christophe Leroy # Date: Fri Feb 7 17:20:57 2020 +0000 # # powerpc: Fix CONFIG_TRACE_IRQFLAGS with CONFIG_VMAP_STACK # # When CONFIG_PROVE_LOCKING is selected together with (now default) # CONFIG_VMAP_STACK, kernel enter deadlock during boot. # # At the point of checking whether interrupts are enabled or not, the # value of MSR saved on stack is read using the physical address of the # stack. But at this point, when using VMAP stack the DATA MMU # translation has already been re-enabled, leading to deadlock. # # Don't use the physical address of the stack when # CONFIG_VMAP_STACK is set. # # Signed-off-by: Christophe Leroy # Reported-by: Guenter Roeck # Fixes: 028474876f47 ("powerpc/32: prepare for CONFIG_VMAP_STACK") # Tested-by: Guenter Roeck # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/daeacdc0dec0416d1c587cc9f9e7191ad3068dc0.1581095957.git.christophe.leroy@c-s.fr # < /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 d4bf905307a1c90a27714ff7a9fd29b0a2ceed98 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc85xx_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.6 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:204:16: 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:72:12: 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/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec': /kisskb/src/fs/ext4/extents.c:5009:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/trace/trace_events.c: In function 'event_create_dir': /kisskb/src/kernel/trace/trace_events.c:2039:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c: In function 'wm8960_configure_clocking': /kisskb/src/sound/soc/codecs/wm8960.c:800:70: warning: 'j' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c:797:68: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1426:5: warning: 'page' 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:2598:6: 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:1859:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /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] /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/io_uring.c: In function '__io_sqe_files_update': /kisskb/src/fs/io_uring.c:5713:13: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc8a6dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc79f44) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:09 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6022372 Bytes = 5881.22 KiB = 5.74 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:10 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051778 Bytes = 5909.94 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051908 Bytes = 5910.07 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051786 Bytes = 5909.95 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051858 Bytes = 5910.02 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051899 Bytes = 5910.06 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6052226 Bytes = 5910.38 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051780 Bytes = 5909.94 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051902 Bytes = 5910.06 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6054545 Bytes = 5912.64 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051658 Bytes = 5909.82 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:14 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6053951 Bytes = 5912.06 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:14 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6052525 Bytes = 5910.67 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:14 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6054506 Bytes = 5912.60 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002a8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:14 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051896 Bytes = 5910.05 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002e8 Image Name: Linux-5.5.0-gd4bf905307a1 Created: Sat Feb 8 23:43:14 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6051906 Bytes = 5910.06 KiB = 5.77 MiB Load Address: 00d00000 Entry Point: 00d002e8 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc4.6 # Build took: 0:02:10.156030