# git rev-parse -q --verify 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb^{commit}
579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb
already have revision, skipping fetch
# git checkout -q -f -B kisskb 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb
# git clean -qxdf
# < git log -1
# commit 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
# Date:   Wed Jan 23 11:51:38 2019 +0530
# 
#     powerpc/radix: Fix kernel crash with mremap()
#     
#     With support for split pmd lock, we use pmd page pmd_huge_pte pointer
#     to store the deposited page table. In those config when we move page
#     tables we need to make sure we move the deposited page table to the
#     correct pmd page. Otherwise this can result in crash when we withdraw
#     of deposited page table because we can find the pmd_huge_pte NULL.
#     
#     eg:
#     
#       __split_huge_pmd+0x1070/0x1940
#       __split_huge_pmd+0xe34/0x1940 (unreliable)
#       vma_adjust_trans_huge+0x110/0x1c0
#       __vma_adjust+0x2b4/0x9b0
#       __split_vma+0x1b8/0x280
#       __do_munmap+0x13c/0x550
#       sys_mremap+0x220/0x7e0
#       system_call+0x5c/0x70
#     
#     Fixes: 675d995297d4 ("powerpc/book3s64: Enable split pmd ptlock.")
#     Cc: stable@vger.kernel.org # v4.18+
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-gcc --version
# < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-ld --version
# < git log --format=%s --max-count=1 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb
# < make -s -j 80 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  defconfig
# make -s -j 80 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  
/kisskb/src/arch/mips/boot/dts/xilfpga/nexys4ddr.dts:109.16-112.8: Warning (i2c_bus_reg): /i2c@10A00000/ad7420@4B: I2C bus unit address format error, expected "4b"
FIT description: Linux 5.0.0-rc1-g579b9239c1f3
Created:         Fri Feb  1 05:37:01 2019
 Image 0 (kernel@0)
  Description:  Linux 5.0.0-rc1-g579b9239c1f3
  Created:      Fri Feb  1 05:37:01 2019
  Type:         Kernel Image
  Compression:  gzip compressed
  Data Size:    4500908 Bytes = 4395.42 KiB = 4.29 MiB
  Architecture: MIPS
  OS:           Linux
  Load Address: 0x80100000
  Entry Point:  0x808543b0
  Hash algo:    sha1
  Hash value:   a3bd2558d8d3668fb407d8e0bd5c5791c4927dc0
 Image 1 (fdt@boston)
  Description:  img,boston Device Tree
  Created:      Fri Feb  1 05:37:01 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    3793 Bytes = 3.70 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   4799f50d688573234da6e9d7701234d394759ef4
 Image 2 (fdt@ni169445)
  Description:  NI 169445 device tree
  Created:      Fri Feb  1 05:37:01 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    1871 Bytes = 1.83 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   51b89b31605ee62038c8468c429af091dfc75ec7
 Image 3 (fdt@xilfpga)
  Description:  MIPSfpga (xilfpga) Device Tree
  Created:      Fri Feb  1 05:37:01 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    2708 Bytes = 2.64 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   509ce58e44c561d54539e64e9d4b47054e696fc6
 Default Configuration: 'conf@default'
 Configuration 0 (conf@default)
  Description:  Generic Linux kernel
  Kernel:       kernel@0
 Configuration 1 (conf@boston)
  Description:  Boston Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@boston
 Configuration 2 (conf@ni169445)
  Description:  NI 169445 Linux Kernel
  Kernel:       kernel@0
  FDT:          fdt@ni169445
 Configuration 3 (conf@xilfpga)
  Description:  MIPSfpga Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@xilfpga
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mips-defconfig_mipsel
# Build took: 0:01:42.193139