# git rev-parse -q --verify 03800e0526ee25ed7c843ca1e57b69ac2a5af642^{commit}
03800e0526ee25ed7c843ca1e57b69ac2a5af642
already have revision, skipping fetch
# git checkout -q -f -B kisskb 03800e0526ee25ed7c843ca1e57b69ac2a5af642
# git clean -qxdf
# < git log -1
# commit 03800e0526ee25ed7c843ca1e57b69ac2a5af642
# Author: Andrea Arcangeli <aarcange@redhat.com>
# Date:   Tue Jun 25 10:17:27 2019 -0400
# 
#     powerpc: fix off by one in max_zone_pfn initialization for ZONE_DMA
#     
#     25078dc1f74be16b858e914f52cc8f4d03c2271a first introduced an off by
#     one error in the ZONE_DMA initialization of PPC_BOOK3E_64=y and since
#     9739ab7eda459f0669ec9807e0d9be5020bab88c the off by one applies to
#     PPC32=y too. This simply corrects the off by one and should resolve
#     crashes like below:
#     
#     [   65.179101] page 0x7fff outside node 0 zone DMA [ 0x0 - 0x7fff ]
#     
#     Unfortunately in various MM places "max" means a non inclusive end of
#     range. free_area_init_nodes max_zone_pfn parameter is one case and
#     MAX_ORDER is another one (unrelated) that comes by memory.
#     
#     Reported-by: Zorro Lang <zlang@redhat.com>
#     Fixes: 25078dc1f74b ("powerpc: use mm zones more sensibly")
#     Fixes: 9739ab7eda45 ("powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac")
#     Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
#     Reviewed-by: Christoph Hellwig <hch@lst.de>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20190625141727.2883-1-aarcange@redhat.com
# < /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 03800e0526ee25ed7c843ca1e57b69ac2a5af642
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mvme5100_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  mvme5100_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mvme5100_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1712:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:157:19: warning: 'seq' 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:243:2: 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/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1686:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/futex.c:1651:6: note: 'oldval' was declared here
/kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3407:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/cifs/smb2pdu.c: In function 'SMB2_ioctl_init':
/kisskb/src/fs/cifs/smb2pdu.c:2581:19: warning: 'in_data_buf' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:222:28: note: 'next' was declared here
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1831:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1524:31: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1744:46: note: 'linear' 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:331:21: note: 'pdeo' was declared here
/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]
INFO: Uncompressed kernel (size 0x435fbc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mvme5100_defconfig_powerpc-gcc4.6
# Build took: 0:00:44.635065