# git rev-parse -q --verify 7100e8704b61247649c50551b965e71d168df30b^{commit}
7100e8704b61247649c50551b965e71d168df30b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7100e8704b61247649c50551b965e71d168df30b
# git clean -qxdf
# < git log -1
# commit 7100e8704b61247649c50551b965e71d168df30b
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Fri Mar 29 17:42:57 2019 +1000
# 
#     powerpc/64s/radix: Fix radix segment exception handling
#     
#     Commit 48e7b76957 ("powerpc/64s/hash: Convert SLB miss handlers to C")
#     broke the radix-mode segment exception handler. In radix mode, this is
#     exception is not an SLB miss, rather it signals that the EA is outside
#     the range translated by any page table.
#     
#     The commit lost the radix feature alternate code patch, which can
#     cause faults to some EAs to kernel BUG at arch/powerpc/mm/slb.c:639!
#     
#     The original radix code would send faults to slb_miss_large_addr,
#     which would end up faulting due to slb_addr_limit being 0. This patch
#     sends radix directly to do_bad_slb_fault, which is a bit clearer.
#     
#     Fixes: 48e7b7695745 ("powerpc/64s/hash: Convert SLB miss handlers to C")
#     Cc: stable@vger.kernel.org # v4.20+
#     Reported-by: Anton Blanchard <anton@samba.org>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     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 7100e8704b61247649c50551b965e71d168df30b
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc40x_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ppc40x_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc40x_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:187:16: 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:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:337:21: note: 'pdeo' was declared here
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sunrpc/xprtsock.c: In function 'xs_stream_data_receive_workfn':
/kisskb/src/net/sunrpc/xprtsock.c:529:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sunrpc/xprtsock.c:499:10: note: 'ret' was declared here
/kisskb/src/net/sunrpc/xprtsock.c:529:2: warning: 'read' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sunrpc/xprtsock.c:498:15: note: 'read' was declared here
/kisskb/src/fs/fs_parser.c: In function 'fs_validate_description':
/kisskb/src/fs/fs_parser.c:413:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'int' [-Wformat]
/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
INFO: Uncompressed kernel (size 0x5556fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x5556fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x545088) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x5556fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x5556fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Image Name:   Linux-5.1.0-rc2-g7100e8704b61
Created:      Mon Apr  8 23:13:24 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2681319 Bytes = 2618.48 KiB = 2.56 MiB
Load Address: 00000000
Entry Point:  00000000
Image Name:   Linux-5.1.0-rc2-g7100e8704b61
Created:      Mon Apr  8 23:13:24 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2715240 Bytes = 2651.60 KiB = 2.59 MiB
Load Address: 00600000
Entry Point:  006019cc
Image Name:   Linux-5.1.0-rc2-g7100e8704b61
Created:      Mon Apr  8 23:13:24 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2714708 Bytes = 2651.08 KiB = 2.59 MiB
Load Address: 00600000
Entry Point:  00601758
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_ppc40x_defconfig_powerpc-gcc4.6
# Build took: 0:00:44.950765