# git rev-parse -q --verify 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9^{commit}
416b2bfbaccf8fd50c8e77778bd47f95f12f13d9
already have revision, skipping fetch
# git checkout -q -f -B kisskb 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9
# git clean -qxdf
# < git log -1
# commit 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9
# Author: Ram Pai <linuxram@us.ibm.com>
# Date:   Mon Dec 3 12:43:22 2018 -0800
# 
#     powerpc/pkeys: Copy pkey-tracking-information at fork()
#     
#     At fork(), the pkey tracking information is not copied over to the
#     mm_struct of the child. This can cause the child to erroneously
#     allocate keys that were already allocated. Any allocated execute-only
#     key is lost as well.
#     
#     Add code; called by dup_mmap(), to copy the pkey state from parent to
#     child explicitly.
#     
#     This problem was originally found by Dave Hansen on x86, which turns
#     out to be a problem on powerpc as well.
#     
#     Fixes: cf43d3b26452 ("powerpc: Enable pkey subsystem")
#     Cc: stable@vger.kernel.org # v4.16+
#     Signed-off-by: Ram Pai <linuxram@us.ibm.com>
#     Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
#     [mpe: Return early if pkey_disabled is true]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /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 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_sequoia_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  44x/sequoia_defconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_sequoia_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:186:16: warning: 'old' 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:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here
/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:341:21: note: 'pdeo' was declared here
INFO: Uncompressed kernel (size 0x4a7cb0) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-4.20.0-rc2-g416b2bfbaccf
Created:      Fri Dec 21 03:18:24 2018
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2359719 Bytes = 2304.41 KiB = 2.25 MiB
Load Address: 00500000
Entry Point:  005014e0
Completed OK
# rm -rf /kisskb/build/powerpc-next_44x_sequoia_defconfig_powerpc
# Build took: 0:00:36.020123