# git rev-parse -q --verify fc36def997cfd6cbff3eda4f82853a5c311c5466^{commit} fc36def997cfd6cbff3eda4f82853a5c311c5466 already have revision, skipping fetch # git checkout -q -f -B kisskb fc36def997cfd6cbff3eda4f82853a5c311c5466 # git clean -qxdf # < git log -1 # commit fc36def997cfd6cbff3eda4f82853a5c311c5466 # Author: Pavel Tatashin # Date: Tue Jul 3 17:02:53 2018 -0700 # # mm: teach dump_page() to correctly output poisoned struct pages # # If struct page is poisoned, and uninitialized access is detected via # PF_POISONED_CHECK(page) dump_page() is called to output the page. But, # the dump_page() itself accesses struct page to determine how to print # it, and therefore gets into a recursive loop. # # For example: # # dump_page() # __dump_page() # PageSlab(page) # PF_POISONED_CHECK(page) # VM_BUG_ON_PGFLAGS(PagePoisoned(page), page) # dump_page() recursion loop. # # Link: http://lkml.kernel.org/r/20180702180536.2552-1-pasha.tatashin@oracle.com # Fixes: f165b378bbdf ("mm: uninitialized struct page poisoning sanity checking") # Signed-off-by: Pavel Tatashin # Acked-by: Michal Hocko # Cc: # Signed-off-by: Andrew Morton # 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 fc36def997cfd6cbff3eda4f82853a5c311c5466 # < make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_mpc83xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc83xx_defconfig # make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_mpc83xx_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/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/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:339:21: 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/mpc832x_rdb.dtb: Warning (interrupts_property): /qe@e0100000/mdio@3120/ethernet-phy@0:#interrupt-cells: size is (4), expected multiple of 8 arch/powerpc/boot/mpc832x_rdb.dtb: Warning (interrupts_property): /qe@e0100000/mdio@3120/ethernet-phy@4:#interrupt-cells: size is (4), expected multiple of 8 INFO: Uncompressed kernel (size 0x605530) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x605530) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x605530) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x605530) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x605530) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x605530) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x605530) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x5f4e84) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Image Name: Linux-4.18.0-rc3-gfc36def Created: Wed Jul 4 11:33:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3014402 Bytes = 2943.75 kB = 2.87 MB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.18.0-rc3-gfc36def Created: Wed Jul 4 11:33:12 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3037833 Bytes = 2966.63 kB = 2.90 MB Load Address: 00700000 Entry Point: 00700230 Image Name: Linux-4.18.0-rc3-gfc36def Created: Wed Jul 4 11:33:13 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3037857 Bytes = 2966.66 kB = 2.90 MB Load Address: 00700000 Entry Point: 00700230 Image Name: Linux-4.18.0-rc3-gfc36def Created: Wed Jul 4 11:33:13 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3038280 Bytes = 2967.07 kB = 2.90 MB Load Address: 00700000 Entry Point: 00700230 Image Name: Linux-4.18.0-rc3-gfc36def Created: Wed Jul 4 11:33:13 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3038116 Bytes = 2966.91 kB = 2.90 MB Load Address: 00700000 Entry Point: 00700230 Image Name: Linux-4.18.0-rc3-gfc36def Created: Wed Jul 4 11:33:13 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3038101 Bytes = 2966.90 kB = 2.90 MB Load Address: 00700000 Entry Point: 00700230 Image Name: Linux-4.18.0-rc3-gfc36def Created: Wed Jul 4 11:33:13 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3038121 Bytes = 2966.92 kB = 2.90 MB Load Address: 00700000 Entry Point: 00700230 Completed OK # rm -rf /kisskb/build/linus_mpc83xx_defconfig_powerpc # Build took: 0:01:11.531200