# git rev-parse -q --verify b3fc0fe88c866051e7fdf92c0fc5dde74d7d501d^{commit}
b3fc0fe88c866051e7fdf92c0fc5dde74d7d501d
already have revision, skipping fetch
# git checkout -q -f -B kisskb b3fc0fe88c866051e7fdf92c0fc5dde74d7d501d
# git clean -qxdf
# < git log -1
# commit b3fc0fe88c866051e7fdf92c0fc5dde74d7d501d
# Author: Geoff Levand <geoff@infradead.org>
# Date:   Sat May 9 18:58:32 2020 +0000
# 
#     powerpc/ps3: Fix kexec shutdown hang
#     
#     The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
#     are called very late in the shutdown via kexec's mmu_cleanup_all
#     routine.  By the time mmu_cleanup_all runs it is too late to use
#     udbg_printf, and calling it will cause PS3 systems to hang.
#     
#     Remove all debugging statements from ps3_mm_region_destroy() and
#     ps3_mm_vas_destroy() and replace any error reporting with calls
#     to lv1_panic.
#     
#     With this change builds with 'DEBUG' defined will not cause kexec
#     reboots to hang, and builds with 'DEBUG' defined or not will end
#     in lv1_panic if an error is encountered.
#     
#     Signed-off-by: Geoff Levand <geoff@infradead.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/7325c4af2b4c989c19d6a26b90b1fec9c0615ddf.1589049250.git.geoff@infradead.org
# < /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 b3fc0fe88c866051e7fdf92c0fc5dde74d7d501d
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pq2fads_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  pq2fads_defconfig
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pq2fads_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  help
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pq2fads_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  olddefconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_pq2fads_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:471:21: 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:4774:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/namei.c: In function 'handle_dots':
/kisskb/src/fs/namei.c:1805:10: warning: 'inode' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/namei.c:1805:10: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/io_uring.c: In function '__io_sqe_files_update.isra.94':
/kisskb/src/fs/io_uring.c:6701:13: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1801:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1714:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
INFO: Uncompressed kernel (size 0x5c3dc4) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x5b37e8) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Image Name:   Linux-5.7.0-rc2-gb3fc0fe88c86
Created:      Tue May 12 13:40:26 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2944202 Bytes = 2875.20 KiB = 2.81 MiB
Load Address: 00000000
Entry Point:  00000000
Image Name:   Linux-5.7.0-rc2-gb3fc0fe88c86
Created:      Tue May 12 13:40:26 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2975244 Bytes = 2905.51 KiB = 2.84 MiB
Load Address: 00600000
Entry Point:  00600888
Completed OK
# rm -rf /kisskb/build/powerpc-next_pq2fads_defconfig_powerpc-gcc4.6
# Build took: 0:00:59.732704